README.md

@@ -233,5 +233,3 @@ my_pattern.ref(_make_my_subpattern(), offset=..., ...)
 * Tests tests tests
 * check renderpather
 * pather and renderpather examples
-* context manager for retool
-* allow a specific mismatch when connecting ports

examples/test_rep.py

@@ -99,7 +99,6 @@ def main():
     print('\nAdded aref_test')
 
     folder = Path('./layouts/')
-    folder.mkdir(exist_ok=True)
     print(f'...writing files to {folder}...')
 
     gds1 = folder / 'rep.gds.gz'

examples/tutorial/basic_shapes.py

@@ -1,4 +1,4 @@
-from collections.abc import Sequence
+from typing import Sequence
 
 import numpy
 from numpy import pi

examples/tutorial/devices.py

@@ -1,4 +1,4 @@
-from collections.abc import Sequence, Mapping
+from typing import Sequence, Mapping
 
 import numpy
 from numpy import pi

examples/tutorial/library.py

@@ -1,5 +1,4 @@
-from typing import Any
-from collections.abc import Sequence, Callable
+from typing import Sequence, Callable, Any
 from pprint import pformat
 
 import numpy

examples/tutorial/pather.py

@@ -1,7 +1,7 @@
 """
 Manual wire routing tutorial: Pather and BasicTool
 """
-from collections.abc import Callable
+from typing import Callable
 from numpy import pi
 from masque import Pather, RenderPather, Library, Pattern, Port, layer_t, map_layers
 from masque.builder.tools import BasicTool, PathTool

examples/tutorial/pcgen.py

@@ -2,7 +2,7 @@
 Routines for creating normalized 2D lattices and common photonic crystal
  cavity designs.
 """
-from collection.abc import Sequence
+from typing import Sequence
 
 import numpy
 from numpy.typing import ArrayLike, NDArray
@@ -233,8 +233,8 @@ def ln_shift_defect(
 
     # Shift holes
     # Expand shifts as necessary
-    tmp_a = numpy.asarray(shifts_a)
-    tmp_r = numpy.asarray(shifts_r)
+    tmp_a = numpy.array(shifts_a)
+    tmp_r = numpy.array(shifts_r)
     n_shifted = max(tmp_a.size, tmp_r.size)
 
     shifts_a = numpy.ones(n_shifted)

examples/tutorial/renderpather.py

@@ -1,7 +1,7 @@
 """
 Manual wire routing tutorial: RenderPather an PathTool
 """
-from collections.abc import Callable
+from typing import Callable
 from masque import RenderPather, Library, Pattern, Port, layer_t, map_layers
 from masque.builder.tools import PathTool
 from masque.file.gdsii import writefile

masque/__init__.py

@@ -28,65 +28,25 @@
     can accept a `Mapping[str, Pattern]` and wrap it in a `LibraryView` internally.
 """
 
-from .utils import (
-    layer_t as layer_t,
-    annotations_t as annotations_t,
-    SupportsBool as SupportsBool,
-    )
-from .error import (
-    MasqueError as MasqueError,
-    PatternError as PatternError,
-    LibraryError as LibraryError,
-    BuildError as BuildError,
-    )
-from .shapes import (
-    Shape as Shape,
-    Polygon as Polygon,
-    Path as Path,
-    Circle as Circle,
-    Arc as Arc,
-    Ellipse as Ellipse,
-    )
-from .label import Label as Label
-from .ref import Ref as Ref
-from .pattern import (
-    Pattern as Pattern,
-    map_layers as map_layers,
-    map_targets as map_targets,
-    chain_elements as chain_elements,
-    )
+from .utils import layer_t, annotations_t, SupportsBool
+from .error import MasqueError, PatternError, LibraryError, BuildError
+from .shapes import Shape, Polygon, Path, Circle, Arc, Ellipse
+from .label import Label
+from .ref import Ref
+from .pattern import Pattern, map_layers, map_targets, chain_elements
 
 from .library import (
-    ILibraryView as ILibraryView,
-    ILibrary as ILibrary,
-    LibraryView as LibraryView,
-    Library as Library,
-    LazyLibrary as LazyLibrary,
-    AbstractView as AbstractView,
-    TreeView as TreeView,
-    Tree as Tree,
-    )
-from .ports import (
-    Port as Port,
-    PortList as PortList,
-    )
-from .abstract import Abstract as Abstract
-from .builder import (
-    Builder as Builder,
-    Tool as Tool,
-    Pather as Pather,
-    RenderPather as RenderPather,
-    RenderStep as RenderStep,
-    BasicTool as BasicTool,
-    PathTool as PathTool,
-    )
-from .utils import (
-    ports2data as ports2data,
-    oneshot as oneshot,
+    ILibraryView, ILibrary,
+    LibraryView, Library, LazyLibrary,
+    AbstractView, TreeView, Tree,
     )
+from .ports import Port, PortList
+from .abstract import Abstract
+from .builder import Builder, Tool, Pather, RenderPather, RenderStep, BasicTool, PathTool
+from .utils import ports2data, oneshot
 
 
 __author__ = 'Jan Petykiewicz'
 
-__version__ = '3.2'
+__version__ = '3.1'
 version = __version__       # legacy

masque/abstract.py

@@ -97,7 +97,7 @@ class Abstract(PortList):
         Returns:
             self
         """
-        pivot = numpy.asarray(pivot, dtype=float)
+        pivot = numpy.array(pivot)
         self.translate_ports(-pivot)
         self.rotate_ports(rotation)
         self.rotate_port_offsets(rotation)

masque/builder/__init__.py

@@ -1,10 +1,5 @@
-from .builder import Builder as Builder
-from .pather import Pather as Pather
-from .renderpather import RenderPather as RenderPather
-from .utils import ell as ell
-from .tools import (
-    Tool as Tool,
-    RenderStep as RenderStep,
-    BasicTool as BasicTool,
-    PathTool as PathTool,
-    )
+from .builder import Builder
+from .pather import Pather
+from .renderpather import RenderPather
+from .utils import ell
+from .tools import Tool, RenderStep, BasicTool, PathTool

masque/builder/builder.py

@@ -1,8 +1,7 @@
 """
 Simplified Pattern assembly (`Builder`)
 """
-from typing import Self
-from collections.abc import Sequence, Mapping
+from typing import Self, Sequence, Mapping
 import copy
 import logging
 from functools import wraps
@@ -138,7 +137,7 @@ class Builder(PortList):
 
     @classmethod
     def interface(
-            cls: type['Builder'],
+            cls,
             source: PortList | Mapping[str, Port] | str,
             *,
             library: ILibrary | None = None,
@@ -276,7 +275,7 @@ class Builder(PortList):
             logger.error('Skipping plug() since device is dead')
             return self
 
-        if not isinstance(other, str | Abstract | Pattern):
+        if not isinstance(other, (str, Abstract, Pattern)):
             # We got a Tree; add it into self.library and grab an Abstract for it
             other = self.library << other
 
@@ -348,7 +347,7 @@ class Builder(PortList):
             logger.error('Skipping place() since device is dead')
             return self
 
-        if not isinstance(other, str | Abstract | Pattern):
+        if not isinstance(other, (str, Abstract, Pattern)):
             # We got a Tree; add it into self.library and grab an Abstract for it
             other = self.library << other
 

masque/builder/pather.py

@@ -1,8 +1,7 @@
 """
 Manual wire/waveguide routing (`Pather`)
 """
-from typing import Self
-from collections.abc import Sequence, MutableMapping, Mapping
+from typing import Self, Sequence, MutableMapping, Mapping
 import copy
 import logging
 from pprint import pformat
@@ -175,7 +174,7 @@ class Pather(Builder):
 
     @classmethod
     def from_builder(
-            cls: type['Pather'],
+            cls,
             builder: Builder,
             *,
             tools: Tool | MutableMapping[str | None, Tool] | None = None,
@@ -195,7 +194,7 @@ class Pather(Builder):
 
     @classmethod
     def interface(
-            cls: type['Pather'],
+            cls,
             source: PortList | Mapping[str, Port] | str,
             *,
             library: ILibrary | None = None,
@@ -658,7 +657,7 @@ class Pather(Builder):
 
         if not bound_types:
             raise BuildError('No bound type specified for mpath')
-        if len(bound_types) > 1:
+        elif len(bound_types) > 1:
             raise BuildError(f'Too many bound types specified for mpath: {bound_types}')
         bound_type = tuple(bound_types)[0]
 
@@ -672,13 +671,13 @@ class Pather(Builder):
             # Not a bus, so having a container just adds noise to the layout
             port_name = tuple(portspec)[0]
             return self.path(port_name, ccw, extensions[port_name], tool_port_names=tool_port_names, **kwargs)
-
-        bld = Pather.interface(source=ports, library=self.library, tools=self.tools)
-        for port_name, length in extensions.items():
-            bld.path(port_name, ccw, length, tool_port_names=tool_port_names, **kwargs)
-        name = self.library.get_name(base_name)
-        self.library[name] = bld.pattern
-        return self.plug(Abstract(name, bld.pattern.ports), {sp: 'in_' + sp for sp in ports})       # TODO safe to use 'in_'?
+        else:
+            bld = Pather.interface(source=ports, library=self.library, tools=self.tools)
+            for port_name, length in extensions.items():
+                bld.path(port_name, ccw, length, tool_port_names=tool_port_names, **kwargs)
+            name = self.library.get_name(base_name)
+            self.library[name] = bld.pattern
+            return self.plug(Abstract(name, bld.pattern.ports), {sp: 'in_' + sp for sp in ports.keys()})       # TODO safe to use 'in_'?
 
     # TODO def bus_join()?
 

masque/builder/renderpather.py

@@ -1,8 +1,7 @@
 """
 Pather with batched (multi-step) rendering
 """
-from typing import Self
-from collections.abc import Sequence, Mapping, MutableMapping
+from typing import Self, Sequence, Mapping, MutableMapping
 import copy
 import logging
 from collections import defaultdict
@@ -128,7 +127,7 @@ class RenderPather(PortList):
 
     @classmethod
     def interface(
-            cls: type['RenderPather'],
+            cls,
             source: PortList | Mapping[str, Port] | str,
             *,
             library: ILibrary | None = None,
@@ -248,7 +247,7 @@ class RenderPather(PortList):
             other_tgt = self.library[other.name]
 
         # get rid of plugged ports
-        for kk in map_in:
+        for kk in map_in.keys():
             if kk in self.paths:
                 self.paths[kk].append(RenderStep('P', None, self.ports[kk].copy(), self.ports[kk].copy(), None))
 
@@ -561,7 +560,7 @@ class RenderPather(PortList):
 
         if not bound_types:
             raise BuildError('No bound type specified for mpath')
-        if len(bound_types) > 1:
+        elif len(bound_types) > 1:
             raise BuildError(f'Too many bound types specified for mpath: {bound_types}')
         bound_type = tuple(bound_types)[0]
 

masque/builder/tools.py

@@ -3,8 +3,7 @@ Tools are objects which dynamically generate simple single-use devices (e.g. wir
 
 # TODO document all tools
 """
-from typing import Literal, Any
-from collections.abc import Sequence, Callable
+from typing import Sequence, Literal, Callable, Any
 from abc import ABCMeta  # , abstractmethod     # TODO any way to make Tool ok with implementing only one method?
 from dataclasses import dataclass
 
@@ -223,8 +222,8 @@ class Tool:
             self,
             batch: Sequence[RenderStep],
             *,
-            port_names: Sequence[str] = ('A', 'B'),     # noqa: ARG002 (unused)
-            **kwargs,                                   # noqa: ARG002 (unused)
+            port_names: Sequence[str] = ('A', 'B'),
+            **kwargs,
             ) -> ILibrary:
         """
         Render the provided `batch` of `RenderStep`s into geometry, returning a tree
@@ -313,7 +312,7 @@ class BasicTool(Tool, metaclass=ABCMeta):
             *,
             in_ptype: str | None = None,
             out_ptype: str | None = None,
-            **kwargs,               # noqa: ARG002 (unused)
+            **kwargs,
             ) -> tuple[Port, LData]:
         # TODO check all the math for L-shaped bends
         if ccw is not None:
@@ -405,7 +404,7 @@ class BasicTool(Tool, metaclass=ABCMeta):
                     ipat, iport_theirs, _iport_ours = in_transition
                     pat.plug(ipat, {port_names[1]: iport_theirs})
                 if not numpy.isclose(straight_length, 0):
-                    straight_pat = gen_straight(straight_length, **kwargs)
+                    straight_pat = gen_straight(straight_length)
                     if append:
                         pat.plug(straight_pat, {port_names[1]: sport_in}, append=True)
                     else:
@@ -455,7 +454,7 @@ class PathTool(Tool, metaclass=ABCMeta):
             in_ptype: str | None = None,
             out_ptype: str | None = None,
             port_names: tuple[str, str] = ('A', 'B'),
-            **kwargs,                           # noqa: ARG002 (unused)
+            **kwargs,
             ) -> Library:
         out_port, dxy = self.planL(
             ccw,
@@ -486,9 +485,9 @@ class PathTool(Tool, metaclass=ABCMeta):
             ccw: SupportsBool | None,
             length: float,
             *,
-            in_ptype: str | None = None,        # noqa: ARG002 (unused)
+            in_ptype: str | None = None,
             out_ptype: str | None = None,
-            **kwargs,                           # noqa: ARG002 (unused)
+            **kwargs,
             ) -> tuple[Port, NDArray[numpy.float64]]:
         # TODO check all the math for L-shaped bends
 
@@ -522,7 +521,7 @@ class PathTool(Tool, metaclass=ABCMeta):
             batch: Sequence[RenderStep],
             *,
             port_names: Sequence[str] = ('A', 'B'),
-            **kwargs,                           # noqa: ARG002 (unused)
+            **kwargs,
             ) -> ILibrary:
 
         path_vertices = [batch[0].start_port.offset]

masque/builder/utils.py

@@ -1,5 +1,4 @@
-from typing import SupportsFloat, cast, TYPE_CHECKING
-from collections.abc import Mapping, Sequence
+from typing import Mapping, Sequence, SupportsFloat, cast, TYPE_CHECKING
 from pprint import pformat
 
 import numpy
@@ -113,7 +112,7 @@ def ell(
     is_horizontal = numpy.isclose(rotations[0] % pi, 0)
     if bound_type in ('ymin', 'ymax') and is_horizontal:
         raise BuildError(f'Asked for {bound_type} position but ports are pointing along the x-axis!')
-    if bound_type in ('xmin', 'xmax') and not is_horizontal:
+    elif bound_type in ('xmin', 'xmax') and not is_horizontal:
         raise BuildError(f'Asked for {bound_type} position but ports are pointing along the y-axis!')
 
     direction = rotations[0] + pi                        # direction we want to travel in (+pi relative to port)
@@ -202,7 +201,7 @@ def ell(
         if extension < 0:
             ext_floor = -numpy.floor(extension)
             raise BuildError(f'Position is too close by at least {ext_floor}. Total extensions would be\n\t'
-                             + '\n\t'.join(f'{key}: {off}' for key, off in zip(ports.keys(), offsets, strict=True)))
+                             + '\n\t'.join(f'{key}: {off}' for key, off in zip(ports.keys(), offsets)))
 
-    result = dict(zip(ports.keys(), offsets, strict=True))
+    result = dict(zip(ports.keys(), offsets))
     return result

masque/file/dxf.py

@@ -6,8 +6,7 @@ Notes:
  * ezdxf sets creation time, write time, $VERSIONGUID, and $FINGERPRINTGUID
     to unique values, so byte-for-byte reproducibility is not achievable for now
 """
-from typing import Any, cast, TextIO, IO
-from collections.abc import Mapping, Callable
+from typing import Any, Callable, Mapping, cast, TextIO, IO
 import io
 import logging
 import pathlib
@@ -16,7 +15,6 @@ import gzip
 import numpy
 import ezdxf
 from ezdxf.enums import TextEntityAlignment
-from ezdxf.entities import LWPolyline, Polyline, Text, Insert
 
 from .utils import is_gzipped, tmpfile
 from .. import Pattern, Ref, PatternError, Label
@@ -40,7 +38,7 @@ def write(
         top_name: str,
         stream: TextIO,
         *,
-        dxf_version: str = 'AC1024',
+        dxf_version='AC1024',
         ) -> None:
     """
     Write a `Pattern` to a DXF file, by first calling `.polygonize()` to change the shapes
@@ -206,25 +204,26 @@ def read(
     return mlib, library_info
 
 
-def _read_block(block: ezdxf.layouts.BlockLayout | ezdxf.layouts.Modelspace) -> tuple[str, Pattern]:
+def _read_block(block) -> tuple[str, Pattern]:
     name = block.name
     pat = Pattern()
     for element in block:
-        if isinstance(element, LWPolyline | Polyline):
-            if isinstance(element, LWPolyline):
-                points = numpy.asarray(element.get_points())
-            elif isinstance(element, Polyline):
-                points = numpy.asarray(element.points())[:, :2]
+        eltype = element.dxftype()
+        if eltype in ('POLYLINE', 'LWPOLYLINE'):
+            if eltype == 'LWPOLYLINE':
+                points = numpy.array(tuple(element.lwpoints))
+            else:
+                points = numpy.array(tuple(element.points()))
             attr = element.dxfattribs()
             layer = attr.get('layer', DEFAULT_LAYER)
 
             if points.shape[1] == 2:
                 raise PatternError('Invalid or unimplemented polygon?')
-
-            if points.shape[1] > 2:
+                #shape = Polygon()
+            elif points.shape[1] > 2:
                 if (points[0, 2] != points[:, 2]).any():
                     raise PatternError('PolyLine has non-constant width (not yet representable in masque!)')
-                if points.shape[1] == 4 and (points[:, 3] != 0).any():
+                elif points.shape[1] == 4 and (points[:, 3] != 0).any():
                     raise PatternError('LWPolyLine has bulge (not yet representable in masque!)')
 
                 width = points[0, 2]
@@ -239,9 +238,9 @@ def _read_block(block: ezdxf.layouts.BlockLayout | ezdxf.layouts.Modelspace) ->
 
             pat.shapes[layer].append(shape)
 
-        elif isinstance(element, Text):
+        elif eltype in ('TEXT',):
             args = dict(
-                offset=numpy.asarray(element.get_placement()[1])[:2],
+                offset=numpy.array(element.get_pos()[1])[:2],
                 layer=element.dxfattribs().get('layer', DEFAULT_LAYER),
                 )
             string = element.dxfattribs().get('text', '')
@@ -252,7 +251,7 @@ def _read_block(block: ezdxf.layouts.BlockLayout | ezdxf.layouts.Modelspace) ->
             pat.label(string=string, **args)
 #            else:
 #                pat.shapes[args['layer']].append(Text(string=string, height=height, font_path=????))
-        elif isinstance(element, Insert):
+        elif eltype in ('INSERT',):
             attr = element.dxfattribs()
             xscale = attr.get('xscale', 1)
             yscale = attr.get('yscale', 1)
@@ -262,7 +261,7 @@ def _read_block(block: ezdxf.layouts.BlockLayout | ezdxf.layouts.Modelspace) ->
             mirrored, extra_angle = normalize_mirror((yscale < 0, xscale < 0))
             rotation = numpy.deg2rad(attr.get('rotation', 0)) + extra_angle
 
-            offset = numpy.asarray(attr.get('insert', (0, 0, 0)))[:2]
+            offset = numpy.array(attr.get('insert', (0, 0, 0)))[:2]
 
             args = dict(
                 target=attr.get('name', None),
@@ -337,10 +336,10 @@ def _mrefs_to_drefs(
 def _shapes_to_elements(
         block: ezdxf.layouts.BlockLayout | ezdxf.layouts.Modelspace,
         shapes: dict[layer_t, list[Shape]],
+        polygonize_paths: bool = False,
         ) -> None:
     # Add `LWPolyline`s for each shape.
     #   Could set do paths with width setting, but need to consider endcaps.
-    # TODO: can DXF do paths?
     for layer, sseq in shapes.items():
         attribs = dict(layer=_mlayer2dxf(layer))
         for shape in sseq:

masque/file/gdsii.py

@@ -19,8 +19,7 @@ Notes:
  * GDS creation/modification/access times are set to 1900-01-01 for reproducibility.
  * Gzip modification time is set to 0 (start of current epoch, usually 1970-01-01)
 """
-from typing import IO, cast, Any
-from collections.abc import Iterable, Mapping, Callable
+from typing import Callable, Iterable, Mapping, IO, cast, Any
 import io
 import mmap
 import logging
@@ -357,7 +356,7 @@ def _mrefs_to_grefs(refs: dict[str | None, list[Ref]]) -> list[klamath.library.R
             if isinstance(rep, Grid):
                 b_vector = rep.b_vector if rep.b_vector is not None else numpy.zeros(2)
                 b_count = rep.b_count if rep.b_count is not None else 1
-                xy = numpy.asarray(ref.offset) + numpy.array([
+                xy = numpy.array(ref.offset) + numpy.array([
                     [0.0, 0.0],
                     rep.a_vector * rep.a_count,
                     b_vector * b_count,
@@ -409,8 +408,8 @@ def _annotations_to_properties(annotations: annotations_t, max_len: int = 126) -
     for key, vals in annotations.items():
         try:
             i = int(key)
-        except ValueError as err:
-            raise PatternError(f'Annotation key {key} is not convertable to an integer') from err
+        except ValueError:
+            raise PatternError(f'Annotation key {key} is not convertable to an integer')
         if not (0 < i < 126):
             raise PatternError(f'Annotation key {key} converts to {i} (must be in the range [1,125])')
 
@@ -597,19 +596,19 @@ def load_libraryfile(
     path = pathlib.Path(filename)
     stream: IO[bytes]
     if is_gzipped(path):
-        if use_mmap:
+        if mmap:
             logger.info('Asked to mmap a gzipped file, reading into memory instead...')
-            gz_stream = gzip.open(path, mode='rb')      # noqa: SIM115
+            gz_stream = gzip.open(path, mode='rb')
             stream = io.BytesIO(gz_stream.read())       # type: ignore
         else:
-            gz_stream = gzip.open(path, mode='rb')      # noqa: SIM115
+            gz_stream = gzip.open(path, mode='rb')
             stream = io.BufferedReader(gz_stream)       # type: ignore
-    else:       # noqa: PLR5501
-        if use_mmap:
-            base_stream = path.open(mode='rb', buffering=0)                         # noqa: SIM115
+    else:
+        if mmap:
+            base_stream = open(path, mode='rb', buffering=0)
             stream = mmap.mmap(base_stream.fileno(), 0, access=mmap.ACCESS_READ)    # type: ignore
         else:
-            stream = path.open(mode='rb')          # noqa: SIM115
+            stream = open(path, mode='rb')
     return load_library(stream, full_load=full_load, postprocess=postprocess)
 
 

masque/file/oasis.py

@@ -14,8 +14,7 @@ Note that OASIS references follow the same convention as `masque`,
 Notes:
  * Gzip modification time is set to 0 (start of current epoch, usually 1970-01-01)
 """
-from typing import Any, IO, cast
-from collections.abc import Sequence, Iterable, Mapping, Callable
+from typing import Any, Callable, Iterable, IO, Mapping, cast, Sequence
 import logging
 import pathlib
 import gzip
@@ -298,7 +297,7 @@ def read(
                 cap_start = path_cap_map[element.get_extension_start()[0]]
                 cap_end   = path_cap_map[element.get_extension_end()[0]]
                 if cap_start != cap_end:
-                    raise PatternError('masque does not support multiple cap types on a single path.')      # TODO handle multiple cap types
+                    raise Exception('masque does not support multiple cap types on a single path.')      # TODO handle multiple cap types
                 cap = cap_start
 
                 path_args: dict[str, Any] = {}
@@ -453,8 +452,6 @@ def read(
 
         for placement in cell.placements:
             target, ref = _placement_to_ref(placement, lib)
-            if isinstance(target, int):
-                target = lib.cellnames[target].nstring.string
             pat.refs[target].append(ref)
 
         mlib[cell_name] = pat
@@ -695,9 +692,9 @@ def properties_to_annotations(
 
         assert proprec.values is not None
         for value in proprec.values:
-            if isinstance(value, float | int):
+            if isinstance(value, (float, int)):
                 values.append(value)
-            elif isinstance(value, NString | AString):
+            elif isinstance(value, (NString, AString)):
                 values.append(value.string)
             elif isinstance(value, PropStringReference):
                 values.append(propstrings[value.ref].string)  # dereference

masque/file/svg.py

@@ -1,7 +1,7 @@
 """
 SVG file format readers and writers
 """
-from collections.abc import Mapping
+from typing import Mapping
 import warnings
 
 import numpy
@@ -50,7 +50,7 @@ def writefile(
     bounds = pattern.get_bounds(library=library)
     if bounds is None:
         bounds_min, bounds_max = numpy.array([[-1, -1], [1, 1]])
-        warnings.warn('Pattern had no bounds (empty?); setting arbitrary viewbox', stacklevel=1)
+        warnings.warn('Pattern had no bounds (empty?); setting arbitrary viewbox')
     else:
         bounds_min, bounds_max = bounds
 
@@ -117,7 +117,7 @@ def writefile_inverted(
     bounds = pattern.get_bounds(library=library)
     if bounds is None:
         bounds_min, bounds_max = numpy.array([[-1, -1], [1, 1]])
-        warnings.warn('Pattern had no bounds (empty?); setting arbitrary viewbox', stacklevel=1)
+        warnings.warn('Pattern had no bounds (empty?); setting arbitrary viewbox')
     else:
         bounds_min, bounds_max = bounds
 
@@ -154,9 +154,9 @@ def poly2path(vertices: ArrayLike) -> str:
     Returns:
         SVG path-string.
     """
-    verts = numpy.asarray(vertices)
-    commands = 'M{:g},{:g} '.format(verts[0][0], verts[0][1])      # noqa: UP032
+    verts = numpy.array(vertices, copy=False)
+    commands = 'M{:g},{:g} '.format(verts[0][0], verts[0][1])
     for vertex in verts[1:]:
-        commands += 'L{:g},{:g}'.format(vertex[0], vertex[1])      # noqa: UP032
+        commands += 'L{:g},{:g}'.format(vertex[0], vertex[1])
     commands += ' Z   '
     return commands

masque/file/utils.py

@@ -1,8 +1,7 @@
 """
 Helper functions for file reading and writing
 """
-from typing import IO
-from collections.abc import Iterator, Mapping
+from typing import IO, Iterator, Mapping
 import re
 import pathlib
 import logging
@@ -117,7 +116,7 @@ def clean_pattern_vertices(pat: Pattern) -> Pattern:
     for shapes in pat.shapes.values():
         remove_inds = []
         for ii, shape in enumerate(shapes):
-            if not isinstance(shape, Polygon | Path):
+            if not isinstance(shape, (Polygon, Path)):
                 continue
             try:
                 shape.clean_vertices()
@@ -129,7 +128,7 @@ def clean_pattern_vertices(pat: Pattern) -> Pattern:
 
 
 def is_gzipped(path: pathlib.Path) -> bool:
-    with path.open('rb') as stream:
+    with open(path, 'rb') as stream:
         magic_bytes = stream.read(2)
         return magic_bytes == b'\x1f\x8b'
 

masque/label.py

@@ -49,7 +49,7 @@ class Label(PositionableImpl, RepeatableImpl, AnnotatableImpl, Bounded, Pivotabl
             annotations: annotations_t | None = None,
             ) -> None:
         self.string = string
-        self.offset = numpy.array(offset, dtype=float)
+        self.offset = numpy.array(offset, dtype=float, copy=True)
         self.repetition = repetition
         self.annotations = annotations if annotations is not None else {}
 
@@ -94,7 +94,7 @@ class Label(PositionableImpl, RepeatableImpl, AnnotatableImpl, Bounded, Pivotabl
         Returns:
             self
         """
-        pivot = numpy.asarray(pivot, dtype=float)
+        pivot = numpy.array(pivot, dtype=float)
         self.translate(-pivot)
         self.offset = numpy.dot(rotation_matrix_2d(rotation), self.offset)
         self.translate(+pivot)

masque/library.py

@@ -14,14 +14,17 @@ Classes include:
 - `AbstractView`: Provides a way to use []-indexing to generate abstracts for patterns in the linked
     library. Generated with `ILibraryView.abstract_view()`.
 """
-from typing import Self, TYPE_CHECKING, cast, TypeAlias, Protocol, Literal
-from collections.abc import Iterator, Mapping, MutableMapping, Sequence, Callable
+from typing import Callable, Self, Type, TYPE_CHECKING, cast, TypeAlias, Protocol, Literal
+from typing import Iterator, Mapping, MutableMapping, Sequence
 import logging
+import base64
+import struct
 import re
 import copy
 from pprint import pformat
 from collections import defaultdict
 from abc import ABCMeta, abstractmethod
+from functools import lru_cache
 
 import numpy
 from numpy.typing import ArrayLike, NDArray
@@ -173,7 +176,7 @@ class ILibraryView(Mapping[str, 'Pattern'], metaclass=ABCMeta):
             tops = tuple(self.keys())
 
         if skip is None:
-            skip = {None}
+            skip = set([None])
 
         if isinstance(tops, str):
             tops = (tops,)
@@ -210,7 +213,7 @@ class ILibraryView(Mapping[str, 'Pattern'], metaclass=ABCMeta):
         if isinstance(tops, str):
             tops = (tops,)
 
-        keep = cast(set[str], self.referenced_patterns(tops) - {None})
+        keep = cast(set[str], self.referenced_patterns(tops) - set((None,)))
         keep |= set(tops)
 
         filtered = {kk: vv for kk, vv in self.items() if kk in keep}
@@ -282,7 +285,7 @@ class ILibraryView(Mapping[str, 'Pattern'], metaclass=ABCMeta):
         if isinstance(tops, str):
             tops = (tops,)
 
-        flattened: dict[str, Pattern | None] = {}
+        flattened: dict[str, 'Pattern | None'] = {}
 
         def flatten_single(name: str) -> None:
             flattened[name] = None
@@ -346,11 +349,8 @@ class ILibraryView(Mapping[str, 'Pattern'], metaclass=ABCMeta):
         else:
             sanitized_name = name
 
+        ii = 0
         suffixed_name = sanitized_name
-        if sanitized_name in self:
-            ii = sum(1 for nn in self.keys() if nn.startswith(sanitized_name))
-        else:
-            ii = 0
         while suffixed_name in self or suffixed_name == '':
             suffixed_name = sanitized_name + b64suffix(ii)
             ii += 1
@@ -460,7 +460,7 @@ class ILibraryView(Mapping[str, 'Pattern'], metaclass=ABCMeta):
         if transform is None or transform is True:
             transform = numpy.zeros(4)
         elif transform is not False:
-            transform = numpy.asarray(transform, dtype=float)
+            transform = numpy.array(transform, dtype=float, copy=False)
 
         original_pattern = pattern
 
@@ -665,7 +665,7 @@ class ILibrary(ILibraryView, MutableMapping[str, 'Pattern'], metaclass=ABCMeta):
         duplicates = set(self.keys()) & set(other.keys())
 
         if not duplicates:
-            for key in other:
+            for key in other.keys():
                 self._merge(key, other, key)
             return {}
 
@@ -735,7 +735,7 @@ class ILibrary(ILibraryView, MutableMapping[str, 'Pattern'], metaclass=ABCMeta):
     def dedup(
             self,
             norm_value: int = int(1e6),
-            exclude_types: tuple[type] = (Polygon,),
+            exclude_types: tuple[Type] = (Polygon,),
             label2name: Callable[[tuple], str] | None = None,
             threshold: int = 2,
             ) -> Self:
@@ -773,7 +773,7 @@ class ILibrary(ILibraryView, MutableMapping[str, 'Pattern'], metaclass=ABCMeta):
             exclude_types = ()
 
         if label2name is None:
-            def label2name(label: tuple) -> str:        # noqa: ARG001
+            def label2name(label):
                 return self.get_name(SINGLE_USE_PREFIX + 'shape')
 
         shape_counts: MutableMapping[tuple, int] = defaultdict(int)
@@ -863,7 +863,7 @@ class ILibrary(ILibraryView, MutableMapping[str, 'Pattern'], metaclass=ABCMeta):
         from .pattern import Pattern
 
         if name_func is None:
-            def name_func(_pat: Pattern, _shape: Shape | Label) -> str:
+            def name_func(_pat, _shape):
                 return self.get_name(SINGLE_USE_PREFIX + 'rep')
 
         for pat in tuple(self.values()):
@@ -912,7 +912,7 @@ class ILibrary(ILibraryView, MutableMapping[str, 'Pattern'], metaclass=ABCMeta):
         if isinstance(tops, str):
             tops = (tops,)
 
-        keep = cast(set[str], self.referenced_patterns(tops) - {None})
+        keep = cast(set[str], self.referenced_patterns(tops) - set((None,)))
         keep |= set(tops)
 
         new = type(self)()
@@ -934,7 +934,7 @@ class ILibrary(ILibraryView, MutableMapping[str, 'Pattern'], metaclass=ABCMeta):
             A set containing the names of all deleted patterns
         """
         trimmed = set()
-        while empty := {name for name, pat in self.items() if pat.is_empty()}:
+        while empty := set(name for name, pat in self.items() if pat.is_empty()):
             for name in empty:
                 del self[name]
 
@@ -1038,7 +1038,10 @@ class Library(ILibrary):
         if key in self.mapping:
             raise LibraryError(f'"{key}" already exists in the library. Overwriting is not allowed!')
 
-        value = value() if callable(value) else value
+        if callable(value):
+            value = value()
+        else:
+            value = value
         self.mapping[key] = value
 
     def __delitem__(self, key: str) -> None:
@@ -1051,7 +1054,7 @@ class Library(ILibrary):
         return f'<Library ({type(self.mapping)}) with keys\n' + pformat(list(self.keys())) + '>'
 
     @classmethod
-    def mktree(cls: type[Self], name: str) -> tuple[Self, 'Pattern']:
+    def mktree(cls, name: str) -> tuple[Self, 'Pattern']:
         """
         Create a new Library and immediately add a pattern
 
@@ -1229,18 +1232,8 @@ class AbstractView(Mapping[str, Abstract]):
         return self.library.__len__()
 
 
+@lru_cache(maxsize=8_000)
 def b64suffix(ii: int) -> str:
-    """
-    Turn an integer into a base64-equivalent suffix.
-
-    This could be done with base64.b64encode, but this way is faster for many small `ii`.
-    """
-    def i2a(nn: int) -> str:
-        return 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789$?'[nn]
-
-    parts = ['$', i2a(ii % 64)]
-    ii >>= 6
-    while ii:
-        parts.append(i2a(ii % 64))
-        ii >>= 6
-    return ''.join(parts)
+    """Turn an integer into a base64-equivalent suffix."""
+    suffix = base64.b64encode(struct.pack('>Q', ii), altchars=b'$?').decode('ASCII')
+    return '$' + suffix[:-1].lstrip('A')

masque/pattern.py

@@ -2,8 +2,7 @@
   Object representing a one multi-layer lithographic layout.
   A single level of hierarchical references is included.
 """
-from typing import cast, Self, Any, TypeVar
-from collections.abc import Sequence, Mapping, MutableMapping, Iterable, Callable
+from typing import Callable, Sequence, cast, Mapping, Self, Any, Iterable, TypeVar, MutableMapping
 import copy
 import logging
 import functools
@@ -296,7 +295,7 @@ class Pattern(PortList, AnnotatableImpl, Mirrorable):
         if not annotations_eq(self.annotations, other.annotations):
             return False
 
-        if not ports_eq(self.ports, other.ports):   # noqa: SIM103
+        if not ports_eq(self.ports, other.ports):
             return False
 
         return True
@@ -313,10 +312,10 @@ class Pattern(PortList, AnnotatableImpl, Mirrorable):
             self
         """
         if sort_elements:
-            def maybe_sort(xx):         # noqa:ANN001,ANN202
+            def maybe_sort(xx):
                 return sorted(xx)
         else:
-            def maybe_sort(xx):         # noqa:ANN001,ANN202
+            def maybe_sort(xx):
                 return xx
 
         self.refs = defaultdict(list, sorted(
@@ -472,10 +471,10 @@ class Pattern(PortList, AnnotatableImpl, Mirrorable):
 
         self.polygonize()
         for layer in self.shapes:
-            self.shapes[layer] = list(chain.from_iterable(
+            self.shapes[layer] = list(chain.from_iterable((
                 ss.manhattanize(grid_x, grid_y)
                 for ss in self.shapes[layer]
-                ))
+                )))
         return self
 
     def as_polygons(self, library: Mapping[str, 'Pattern']) -> list[NDArray[numpy.float64]]:
@@ -595,7 +594,8 @@ class Pattern(PortList, AnnotatableImpl, Mirrorable):
 
         if (cbounds[1] < cbounds[0]).any():
             return None
-        return cbounds
+        else:
+            return cbounds
 
     def get_bounds_nonempty(
             self,
@@ -616,7 +616,7 @@ class Pattern(PortList, AnnotatableImpl, Mirrorable):
         Returns:
             `[[x_min, y_min], [x_max, y_max]]`
         """
-        bounds = self.get_bounds(library, recurse=recurse)
+        bounds = self.get_bounds(library)
         assert bounds is not None
         return bounds
 
@@ -690,7 +690,7 @@ class Pattern(PortList, AnnotatableImpl, Mirrorable):
         Returns:
             self
         """
-        pivot = numpy.asarray(pivot, dtype=float)
+        pivot = numpy.array(pivot)
         self.translate_elements(-pivot)
         self.rotate_elements(rotation)
         self.rotate_element_centers(rotation)
@@ -953,7 +953,7 @@ class Pattern(PortList, AnnotatableImpl, Mirrorable):
         Returns:
             self
         """
-        flattened: dict[str | None, Pattern | None] = {}
+        flattened: dict[str | None, 'Pattern | None'] = {}
 
         def flatten_single(name: str | None) -> None:
             if name is None:
@@ -1015,15 +1015,15 @@ class Pattern(PortList, AnnotatableImpl, Mirrorable):
         try:
             from matplotlib import pyplot       # type: ignore
             import matplotlib.collections       # type: ignore
-        except ImportError:
-            logger.exception('Pattern.visualize() depends on matplotlib!\n'
-                + 'Make sure to install masque with the [visualize] option to pull in the needed dependencies.')
-            raise
+        except ImportError as err:
+            logger.error('Pattern.visualize() depends on matplotlib!')
+            logger.error('Make sure to install masque with the [visualize] option to pull in the needed dependencies.')
+            raise err
 
         if self.has_refs() and library is None:
             raise PatternError('Must provide a library when visualizing a pattern with refs')
 
-        offset = numpy.asarray(offset, dtype=float)
+        offset = numpy.array(offset, dtype=float)
 
         if not overdraw:
             figure = pyplot.figure()
@@ -1324,7 +1324,7 @@ class Pattern(PortList, AnnotatableImpl, Mirrorable):
 
     @classmethod
     def interface(
-            cls: type['Pattern'],
+            cls,
             source: PortList | Mapping[str, Port],
             *,
             in_prefix: str = 'in_',

masque/ports.py

@@ -1,5 +1,4 @@
-from typing import overload, Self, NoReturn, Any
-from collections.abc import Iterable, KeysView, ValuesView, Mapping
+from typing import Iterable, KeysView, ValuesView, overload, Self, Mapping, NoReturn, Any
 import warnings
 import traceback
 import logging
@@ -93,7 +92,7 @@ class Port(PositionableImpl, Rotatable, PivotableImpl, Copyable, Mirrorable):
     def copy(self) -> Self:
         return self.deepcopy()
 
-    def get_bounds(self) -> NDArray[numpy.float64]:
+    def get_bounds(self):
         return numpy.vstack((self.offset, self.offset))
 
     def set_ptype(self, ptype: str) -> Self:
@@ -181,7 +180,7 @@ class PortList(metaclass=ABCMeta):
         """
         if isinstance(key, str):
             return self.ports[key]
-        else:                                       # noqa: RET505
+        else:
             return {k: self.ports[k] for k in key}
 
     def __contains__(self, key: str) -> NoReturn:
@@ -239,7 +238,7 @@ class PortList(metaclass=ABCMeta):
             if duplicates:
                 raise PortError(f'Unrenamed ports would be overwritten: {duplicates}')
 
-        renamed = {vv: self.ports.pop(kk) for kk, vv in mapping.items()}
+        renamed = {mapping[k]: self.ports.pop(k) for k in mapping.keys()}
         if None in renamed:
             del renamed[None]
 
@@ -294,14 +293,14 @@ class PortList(metaclass=ABCMeta):
         Raises:
             `PortError` if the ports are not properly aligned.
         """
-        a_names, b_names = list(zip(*connections.items(), strict=True))
+        a_names, b_names = list(zip(*connections.items()))
         a_ports = [self.ports[pp] for pp in a_names]
         b_ports = [self.ports[pp] for pp in b_names]
 
         a_types = [pp.ptype for pp in a_ports]
         b_types = [pp.ptype for pp in b_ports]
-        type_conflicts = numpy.array([at != bt and 'unk' not in (at, bt)
-                                      for at, bt in zip(a_types, b_types, strict=True)])
+        type_conflicts = numpy.array([at != bt and at != 'unk' and bt != 'unk'
+                                      for at, bt in zip(a_types, b_types)])
 
         if type_conflicts.any():
             msg = 'Ports have conflicting types:\n'
@@ -502,8 +501,8 @@ class PortList(metaclass=ABCMeta):
             o_offsets[:, 1] *= -1
             o_rotations *= -1
 
-        type_conflicts = numpy.array([st != ot and 'unk' not in (st, ot)
-                                      for st, ot in zip(s_types, o_types, strict=True)])
+        type_conflicts = numpy.array([st != ot and st != 'unk' and ot != 'unk'
+                                      for st, ot in zip(s_types, o_types)])
         if type_conflicts.any():
             msg = 'Ports have conflicting types:\n'
             for nn, (k, v) in enumerate(map_in.items()):

masque/ref.py

@@ -2,8 +2,7 @@
  Ref provides basic support for nesting Pattern objects within each other.
  It carries offset, rotation, mirroring, and scaling data for each individual instance.
 """
-from typing import TYPE_CHECKING, Self, Any
-from collections.abc import Mapping
+from typing import Mapping, TYPE_CHECKING, Self, Any
 import copy
 import functools
 

masque/repetition.py

@@ -2,7 +2,7 @@
     Repetitions provide support for efficiently representing multiple identical
      instances of an object .
 """
-from typing import Any, Self, TypeVar, cast
+from typing import Any, Type, Self, TypeVar, cast
 import copy
 import functools
 from abc import ABCMeta, abstractmethod
@@ -101,7 +101,8 @@ class Grid(Repetition):
         if b_vector is None:
             if b_count > 1:
                 raise PatternError('Repetition has b_count > 1 but no b_vector')
-            b_vector = numpy.array([0.0, 0.0])
+            else:
+                b_vector = numpy.array([0.0, 0.0])
 
         if a_count < 1:
             raise PatternError(f'Repetition has too-small a_count: {a_count}')
@@ -115,7 +116,7 @@ class Grid(Repetition):
 
     @classmethod
     def aligned(
-            cls: type[GG],
+            cls: Type[GG],
             x: float,
             y: float,
             x_count: int,
@@ -156,11 +157,12 @@ class Grid(Repetition):
 
     @a_vector.setter
     def a_vector(self, val: ArrayLike) -> None:
-        val = numpy.array(val, dtype=float)
+        if not isinstance(val, numpy.ndarray):
+            val = numpy.array(val, dtype=float)
 
         if val.size != 2:
             raise PatternError('a_vector must be convertible to size-2 ndarray')
-        self._a_vector = val.flatten()
+        self._a_vector = val.flatten().astype(float)
 
     # b_vector property
     @property
@@ -169,7 +171,8 @@ class Grid(Repetition):
 
     @b_vector.setter
     def b_vector(self, val: ArrayLike) -> None:
-        val = numpy.array(val, dtype=float)
+        if not isinstance(val, numpy.ndarray):
+            val = numpy.array(val, dtype=float, copy=True)
 
         if val.size != 2:
             raise PatternError('b_vector must be convertible to size-2 ndarray')
@@ -287,7 +290,7 @@ class Grid(Repetition):
             return True
         if self.b_vector is None or other.b_vector is None:
             return False
-        if any(self.b_vector[ii] != other.b_vector[ii] for ii in range(2)):     # noqa: SIM103
+        if any(self.b_vector[ii] != other.b_vector[ii] for ii in range(2)):
             return False
         return True
 
@@ -332,9 +335,9 @@ class Arbitrary(Repetition):
 
     @displacements.setter
     def displacements(self, val: ArrayLike) -> None:
-        vala = numpy.array(val, dtype=float)
-        order = numpy.lexsort(vala.T[::-1])     # sortrows
-        self._displacements = vala[order]
+        vala: NDArray[numpy.float64] = numpy.array(val, dtype=float)
+        vala = numpy.sort(vala.view([('', vala.dtype)] * vala.shape[1]), 0).view(vala.dtype)    # sort rows
+        self._displacements = vala
 
     def __init__(
             self,

masque/shapes/__init__.py

@@ -3,15 +3,11 @@ Shapes for use with the Pattern class, as well as the Shape abstract class from
  which they are derived.
 """
 
-from .shape import (
-    Shape as Shape,
-    normalized_shape_tuple as normalized_shape_tuple,
-    DEFAULT_POLY_NUM_VERTICES as DEFAULT_POLY_NUM_VERTICES,
-    )
+from .shape import Shape, normalized_shape_tuple, DEFAULT_POLY_NUM_VERTICES
 
-from .polygon import Polygon as Polygon
-from .circle import Circle as Circle
-from .ellipse import Ellipse as Ellipse
-from .arc import Arc as Arc
-from .text import Text as Text
-from .path import Path as Path
+from .polygon import Polygon
+from .circle import Circle
+from .ellipse import Ellipse
+from .arc import Arc
+from .text import Text
+from .path import Path

masque/shapes/arc.py

@@ -286,7 +286,7 @@ class Arc(Shape):
             return thetas
 
         wh = self.width / 2.0
-        if wh in (r0, r1):
+        if wh == r0 or wh == r1:
             thetas_inner = numpy.zeros(1)      # Don't generate multiple vertices if we're at the origin
         else:
             thetas_inner = get_thetas(inner=True)
@@ -308,7 +308,7 @@ class Arc(Shape):
         return [poly]
 
     def get_bounds_single(self) -> NDArray[numpy.float64]:
-        """
+        '''
         Equation for rotated ellipse is
             `x = x0 + a * cos(t) * cos(rot) - b * sin(t) * sin(phi)`
             `y = y0 + a * cos(t) * sin(rot) + b * sin(t) * cos(rot)`
@@ -319,12 +319,12 @@ class Arc(Shape):
           where -+ is for x, y cases, so that's where the extrema are.
 
         If the extrema are innaccessible due to arc constraints, check the arc endpoints instead.
-        """
+        '''
         a_ranges = self._angles_to_parameters()
 
         mins = []
         maxs = []
-        for a, sgn in zip(a_ranges, (-1, +1), strict=True):
+        for a, sgn in zip(a_ranges, (-1, +1)):
             wh = sgn * self.width / 2
             rx = self.radius_x + wh
             ry = self.radius_y + wh
@@ -424,18 +424,18 @@ class Arc(Shape):
                     ))
 
     def get_cap_edges(self) -> NDArray[numpy.float64]:
-        """
+        '''
         Returns:
             ```
             [[[x0, y0], [x1, y1]],   array of 4 points, specifying the two cuts which
              [[x2, y2], [x3, y3]]],    would create this arc from its corresponding ellipse.
             ```
-        """
+        '''
         a_ranges = self._angles_to_parameters()
 
         mins = []
         maxs = []
-        for a, sgn in zip(a_ranges, (-1, +1), strict=True):
+        for a, sgn in zip(a_ranges, (-1, +1)):
             wh = sgn * self.width / 2
             rx = self.radius_x + wh
             ry = self.radius_y + wh
@@ -454,11 +454,11 @@ class Arc(Shape):
         return numpy.array([mins, maxs]) + self.offset
 
     def _angles_to_parameters(self) -> NDArray[numpy.float64]:
-        """
+        '''
         Returns:
             "Eccentric anomaly" parameter ranges for the inner and outer edges, in the form
                    `[[a_min_inner, a_max_inner], [a_min_outer, a_max_outer]]`
-        """
+        '''
         a = []
         for sgn in (-1, +1):
             wh = sgn * self.width / 2
@@ -472,7 +472,7 @@ class Arc(Shape):
                 a1 += sign * 2 * pi
 
             a.append((a0, a1))
-        return numpy.array(a, dtype=float)
+        return numpy.array(a)
 
     def __repr__(self) -> str:
         angles = f' a°{numpy.rad2deg(self.angles)}'

masque/shapes/circle.py

@@ -119,10 +119,10 @@ class Circle(Shape):
         return numpy.vstack((self.offset - self.radius,
                              self.offset + self.radius))
 
-    def rotate(self, theta: float) -> 'Circle':      # noqa: ARG002  (theta unused)
+    def rotate(self, theta: float) -> 'Circle':
         return self
 
-    def mirror(self, axis: int = 0) -> 'Circle':     # noqa: ARG002  (axis unused)
+    def mirror(self, axis: int = 0) -> 'Circle':
         self.offset *= -1
         return self
 
@@ -130,7 +130,7 @@ class Circle(Shape):
         self.radius *= c
         return self
 
-    def normalized_form(self, norm_value: float) -> normalized_shape_tuple:
+    def normalized_form(self, norm_value) -> normalized_shape_tuple:
         rotation = 0.0
         magnitude = self.radius / norm_value
         return ((type(self),),

masque/shapes/path.py

@@ -1,5 +1,4 @@
-from typing import Any, cast
-from collections.abc import Sequence
+from typing import Sequence, Any, cast
 import copy
 import functools
 from enum import Enum
@@ -33,7 +32,8 @@ class Path(Shape):
     A path, consisting of a bunch of vertices (Nx2 ndarray), a width, an end-cap shape,
         and an offset.
 
-    Note that the setter for `Path.vertices` will create a copy of the passed vertex coordinates.
+    Note that the setter for `Path.vertices` may (but may not) create a copy of the
+      passed vertex coordinates. See `numpy.array(..., copy=False)` for details.
 
     A normalized_form(...) is available, but can be quite slow with lots of vertices.
     """
@@ -104,11 +104,11 @@ class Path(Shape):
         custom_caps = (PathCap.SquareCustom,)
         if self.cap in custom_caps:
             if vals is None:
-                raise PatternError('Tried to set cap extensions to None on path with custom cap type')
+                raise Exception('Tried to set cap extensions to None on path with custom cap type')
             self._cap_extensions = numpy.array(vals, dtype=float)
         else:
             if vals is not None:
-                raise PatternError('Tried to set custom cap extensions on path with non-custom cap type')
+                raise Exception('Tried to set custom cap extensions on path with non-custom cap type')
             self._cap_extensions = vals
 
     # vertices property
@@ -117,7 +117,8 @@ class Path(Shape):
         """
         Vertices of the path (Nx2 ndarray: `[[x0, y0], [x1, y1], ...]`
 
-        When setting, note that a copy of the provided vertices will be made.
+        When setting, note that a copy of the provided vertices may or may not be made,
+        following the rules from `numpy.array(.., copy=False)`.
         """
         return self._vertices
 
@@ -429,22 +430,22 @@ class Path(Shape):
         return self
 
     def remove_duplicate_vertices(self) -> 'Path':
-        """
+        '''
         Removes all consecutive duplicate (repeated) vertices.
 
         Returns:
             self
-        """
+        '''
         self.vertices = remove_duplicate_vertices(self.vertices, closed_path=False)
         return self
 
     def remove_colinear_vertices(self) -> 'Path':
-        """
+        '''
         Removes consecutive co-linear vertices.
 
         Returns:
             self
-        """
+        '''
         self.vertices = remove_colinear_vertices(self.vertices, closed_path=False)
         return self
 

masque/shapes/polygon.py

@@ -1,5 +1,4 @@
-from typing import Any, cast
-from collections.abc import Sequence
+from typing import Sequence, Any, cast
 import copy
 import functools
 
@@ -20,8 +19,8 @@ class Polygon(Shape):
     A polygon, consisting of a bunch of vertices (Nx2 ndarray) which specify an
        implicitly-closed boundary, and an offset.
 
-    Note that the setter for `Polygon.vertices` may creates a copy of the
-      passed vertex coordinates.
+    Note that the setter for `Polygon.vertices` may (but may not) create a copy of the
+      passed vertex coordinates. See `numpy.array(..., copy=False)` for details.
 
     A `normalized_form(...)` is available, but can be quite slow with lots of vertices.
     """
@@ -40,7 +39,8 @@ class Polygon(Shape):
         """
         Vertices of the polygon (Nx2 ndarray: `[[x0, y0], [x1, y1], ...]`)
 
-        When setting, note that a copy of the provided vertices will be made,
+        When setting, note that a copy of the provided vertices may or may not be made,
+        following the rules from `numpy.array(.., copy=False)`.
         """
         return self._vertices
 
@@ -252,7 +252,7 @@ class Polygon(Shape):
                 lx = 2 * (xmax - xctr)
             else:
                 raise PatternError('Two of xmin, xctr, xmax, lx must be None!')
-        else:                        # noqa: PLR5501
+        else:
             if xctr is not None:
                 pass
             elif xmax is None:
@@ -282,7 +282,7 @@ class Polygon(Shape):
                 ly = 2 * (ymax - yctr)
             else:
                 raise PatternError('Two of ymin, yctr, ymax, ly must be None!')
-        else:                        # noqa: PLR5501
+        else:
             if yctr is not None:
                 pass
             elif ymax is None:
@@ -330,7 +330,10 @@ class Polygon(Shape):
         Returns:
             A Polygon object containing the requested octagon
         """
-        s = (1 + numpy.sqrt(2)) if regular else 2
+        if regular:
+            s = 1 + numpy.sqrt(2)
+        else:
+            s = 2
 
         norm_oct = numpy.array([
             [-1, -s],
@@ -354,8 +357,8 @@ class Polygon(Shape):
 
     def to_polygons(
             self,
-            num_vertices: int | None = None,      # unused  # noqa: ARG002
-            max_arclen: float | None = None,      # unused  # noqa: ARG002
+            num_vertices: int | None = None,      # unused
+            max_arclen: float | None = None,      # unused
             ) -> list['Polygon']:
         return [copy.deepcopy(self)]
 
@@ -414,22 +417,22 @@ class Polygon(Shape):
         return self
 
     def remove_duplicate_vertices(self) -> 'Polygon':
-        """
+        '''
         Removes all consecutive duplicate (repeated) vertices.
 
         Returns:
             self
-        """
+        '''
         self.vertices = remove_duplicate_vertices(self.vertices, closed_path=True)
         return self
 
     def remove_colinear_vertices(self) -> 'Polygon':
-        """
+        '''
         Removes consecutive co-linear vertices.
 
         Returns:
             self
-        """
+        '''
         self.vertices = remove_colinear_vertices(self.vertices, closed_path=True)
         return self
 

masque/shapes/shape.py

@@ -1,5 +1,4 @@
-from typing import TYPE_CHECKING, Any
-from collections.abc import Callable
+from typing import Callable, TYPE_CHECKING, Any
 from abc import ABCMeta, abstractmethod
 
 import numpy
@@ -135,7 +134,7 @@ class Shape(PositionableImpl, Rotatable, Mirrorable, Copyable, Scalable,
 
             vertex_lists = []
             p_verts = polygon.vertices + polygon.offset
-            for v, v_next in zip(p_verts, numpy.roll(p_verts, -1, axis=0), strict=True):
+            for v, v_next in zip(p_verts, numpy.roll(p_verts, -1, axis=0)):
                 dv = v_next - v
 
                 # Find x-index bounds for the line      # TODO: fix this and err_xmin/xmax for grids smaller than the line / shape
@@ -165,7 +164,7 @@ class Shape(PositionableImpl, Rotatable, Mirrorable, Copyable, Scalable,
 
                 m = dv[1] / dv[0]
 
-                def get_grid_inds(xes: ArrayLike, m: float = m, v: NDArray = v) -> NDArray[numpy.float64]:
+                def get_grid_inds(xes: ArrayLike) -> NDArray[numpy.float64]:
                     ys = m * (xes - v[0]) + v[1]
 
                     # (inds - 1) is the index of the y-grid line below the edge's intersection with the x-grid
@@ -266,12 +265,11 @@ class Shape(PositionableImpl, Rotatable, Mirrorable, Copyable, Scalable,
             mins, maxs = bounds
             keep_x = numpy.logical_and(grx > mins[0], grx < maxs[0])
             keep_y = numpy.logical_and(gry > mins[1], gry < maxs[1])
-            # Flood left & rightwards by 2 cells
-            for kk in (keep_x, keep_y):
-                for ss in (1, 2):
-                    kk[ss:] += kk[:-ss]
-                    kk[:-ss] += kk[ss:]
-                kk[:] = kk > 0
+            for k in (keep_x, keep_y):
+                for s in (1, 2):
+                    k[s:] += k[:-s]
+                    k[:-s] += k[s:]
+                k = k > 0
 
             gx = grx[keep_x]
             gy = gry[keep_y]

masque/shapes/text.py

@@ -132,8 +132,8 @@ class Text(RotatableImpl, Shape):
 
     def to_polygons(
             self,
-            num_vertices: int | None = None,      # unused  # noqa: ARG002
-            max_arclen: float | None = None,      # unused  # noqa: ARG002
+            num_vertices: int | None = None,      # unused
+            max_arclen: float | None = None,      # unused
             ) -> list[Polygon]:
         all_polygons = []
         total_advance = 0.0
@@ -191,11 +191,6 @@ class Text(RotatableImpl, Shape):
 
         return bounds
 
-    def __repr__(self) -> str:
-        rotation = f' r°{numpy.rad2deg(self.rotation):g}' if self.rotation != 0 else ''
-        mirrored = ' m{:d}' if self.mirrored else ''
-        return f'<TextShape "{self.string}" o{self.offset} h{self.height:g}{rotation}{mirrored}>'
-
 
 def get_char_as_polygons(
         font_path: str,
@@ -221,7 +216,7 @@ def get_char_as_polygons(
         'advance' distance (distance from the start of this glyph to the start of the next one)
     """
     if len(char) != 1:
-        raise PatternError('get_char_as_polygons called with non-char')
+        raise Exception('get_char_as_polygons called with non-char')
 
     face = Face(font_path)
     face.set_char_size(resolution)
@@ -230,8 +225,7 @@ def get_char_as_polygons(
     outline = slot.outline
 
     start = 0
-    all_verts_list = []
-    all_codes = []
+    all_verts_list, all_codes = [], []
     for end in outline.contours:
         points = outline.points[start:end + 1]
         points.append(points[0])
@@ -284,3 +278,8 @@ def get_char_as_polygons(
         polygons = path.to_polygons()
 
     return polygons, advance
+
+    def __repr__(self) -> str:
+        rotation = f' r°{numpy.rad2deg(self.rotation):g}' if self.rotation != 0 else ''
+        mirrored = ' m{:d}' if self.mirrored else ''
+        return f'<TextShape "{self.string}" o{self.offset} h{self.height:g}{rotation}{mirrored}>'

masque/traits/__init__.py

@@ -3,32 +3,11 @@ Traits (mixins) and default implementations
 
 Traits and mixins should set `__slots__ = ()` to enable use of `__slots__` in subclasses.
 """
-from .positionable import (
-    Positionable as Positionable,
-    PositionableImpl as PositionableImpl,
-    Bounded as Bounded,
-    )
-from .layerable import (
-    Layerable as Layerable,
-    LayerableImpl as LayerableImpl,
-    )
-from .rotatable import (
-    Rotatable as Rotatable,
-    RotatableImpl as RotatableImpl,
-    Pivotable as Pivotable,
-    PivotableImpl as PivotableImpl,
-    )
-from .repeatable import (
-    Repeatable as Repeatable,
-    RepeatableImpl as RepeatableImpl,
-    )
-from .scalable import (
-    Scalable as Scalable,
-    ScalableImpl as ScalableImpl,
-    )
-from .mirrorable import Mirrorable as Mirrorable
-from .copyable import Copyable as Copyable
-from .annotatable import (
-    Annotatable as Annotatable,
-    AnnotatableImpl as AnnotatableImpl,
-    )
+from .positionable import Positionable, PositionableImpl, Bounded
+from .layerable import Layerable, LayerableImpl
+from .rotatable import Rotatable, RotatableImpl, Pivotable, PivotableImpl
+from .repeatable import Repeatable, RepeatableImpl
+from .scalable import Scalable, ScalableImpl
+from .mirrorable import Mirrorable
+from .copyable import Copyable
+from .annotatable import Annotatable, AnnotatableImpl

masque/traits/copyable.py

@@ -1,8 +1,9 @@
 from typing import Self
+from abc import ABCMeta
 import copy
 
 
-class Copyable:
+class Copyable(metaclass=ABCMeta):
     """
     Trait class which adds .copy() and .deepcopy()
     """

masque/traits/layerable.py

@@ -63,7 +63,7 @@ class LayerableImpl(Layerable, metaclass=ABCMeta):
         return self._layer
 
     @layer.setter
-    def layer(self, val: layer_t) -> None:
+    def layer(self, val: layer_t):
         self._layer = val
 
     #

masque/traits/mirrorable.py

@@ -44,7 +44,7 @@ class Mirrorable(metaclass=ABCMeta):
 #    """
 #    __slots__ = ()
 #
-#    _mirrored: NDArray[numpy.bool]
+#    _mirrored: numpy.ndarray        # ndarray[bool]
 #    """ Whether to mirror the instance across the x and/or y axes. """
 #
 #    #
@@ -52,15 +52,15 @@ class Mirrorable(metaclass=ABCMeta):
 #    #
 #    # Mirrored property
 #    @property
-#    def mirrored(self) -> NDArray[numpy.bool]:
+#    def mirrored(self) -> numpy.ndarray:        # ndarray[bool]
 #        """ Whether to mirror across the [x, y] axes, respectively """
 #        return self._mirrored
 #
 #    @mirrored.setter
-#    def mirrored(self, val: Sequence[bool]) -> None:
+#    def mirrored(self, val: Sequence[bool]):
 #        if is_scalar(val):
 #            raise MasqueError('Mirrored must be a 2-element list of booleans')
-#        self._mirrored = numpy.array(val, dtype=bool)
+#        self._mirrored = numpy.array(val, dtype=bool, copy=True)
 #
 #    #
 #    # Methods

masque/traits/positionable.py

@@ -81,11 +81,12 @@ class PositionableImpl(Positionable, metaclass=ABCMeta):
 
     @offset.setter
     def offset(self, val: ArrayLike) -> None:
-        val = numpy.array(val, dtype=float)
+        if not isinstance(val, numpy.ndarray) or val.dtype != numpy.float64:
+            val = numpy.array(val, dtype=float)
 
         if val.size != 2:
             raise MasqueError('Offset must be convertible to size-2 ndarray')
-        self._offset = val.flatten()
+        self._offset = val.flatten()        # type: ignore
 
     #
     # Methods

masque/traits/repeatable.py

@@ -34,7 +34,7 @@ class Repeatable(metaclass=ABCMeta):
 
 #    @repetition.setter
 #    @abstractmethod
-#    def repetition(self, repetition: 'Repetition | None') -> None:
+#    def repetition(self, repetition: 'Repetition | None'):
 #        pass
 
     #
@@ -75,7 +75,7 @@ class RepeatableImpl(Repeatable, Bounded, metaclass=ABCMeta):
         return self._repetition
 
     @repetition.setter
-    def repetition(self, repetition: 'Repetition | None') -> None:
+    def repetition(self, repetition: 'Repetition | None'):
         from ..repetition import Repetition
         if repetition is not None and not isinstance(repetition, Repetition):
             raise MasqueError(f'{repetition} is not a valid Repetition object!')

masque/traits/rotatable.py

@@ -54,7 +54,7 @@ class RotatableImpl(Rotatable, metaclass=ABCMeta):
         return self._rotation
 
     @rotation.setter
-    def rotation(self, val: float) -> None:
+    def rotation(self, val: float):
         if not numpy.size(val) == 1:
             raise MasqueError('Rotation must be a scalar')
         self._rotation = val % (2 * pi)
@@ -112,7 +112,7 @@ class PivotableImpl(Pivotable, metaclass=ABCMeta):
     """ `[x_offset, y_offset]` """
 
     def rotate_around(self, pivot: ArrayLike, rotation: float) -> Self:
-        pivot = numpy.asarray(pivot, dtype=float)
+        pivot = numpy.array(pivot, dtype=float)
         cast(Positionable, self).translate(-pivot)
         cast(Rotatable, self).rotate(rotation)
         self.offset = numpy.dot(rotation_matrix_2d(rotation), self.offset)      # type: ignore # mypy#3004

masque/traits/scalable.py

@@ -48,7 +48,7 @@ class ScalableImpl(Scalable, metaclass=ABCMeta):
         return self._scale
 
     @scale.setter
-    def scale(self, val: float) -> None:
+    def scale(self, val: float):
         if not is_scalar(val):
             raise MasqueError('Scale must be a scalar')
         if not val > 0:

masque/utils/__init__.py

@@ -1,40 +1,19 @@
 """
 Various helper functions, type definitions, etc.
 """
-from .types import (
-    layer_t as layer_t,
-    annotations_t as annotations_t,
-    SupportsBool as SupportsBool,
-    )
-from .array import is_scalar as is_scalar
-from .autoslots import AutoSlots as AutoSlots
-from .deferreddict import DeferredDict as DeferredDict
-from .decorators import oneshot as oneshot
+from .types import layer_t, annotations_t, SupportsBool
+from .array import is_scalar
+from .autoslots import AutoSlots
+from .deferreddict import DeferredDict
+from .decorators import oneshot
 
-from .bitwise import (
-    get_bit as get_bit,
-    set_bit as set_bit,
-    )
+from .bitwise import get_bit, set_bit
 from .vertices import (
-    remove_duplicate_vertices as remove_duplicate_vertices,
-    remove_colinear_vertices as remove_colinear_vertices,
-    poly_contains_points as poly_contains_points,
-    )
-from .transform import (
-    rotation_matrix_2d as rotation_matrix_2d,
-    normalize_mirror as normalize_mirror,
-    rotate_offsets_around as rotate_offsets_around,
-    )
-from .comparisons import (
-    annotation2key as annotation2key,
-    annotations_lt as annotations_lt,
-    annotations_eq as annotations_eq,
-    layer2key as layer2key,
-    ports_lt as ports_lt,
-    ports_eq as ports_eq,
-    rep2key as rep2key,
+    remove_duplicate_vertices, remove_colinear_vertices, poly_contains_points
     )
+from .transform import rotation_matrix_2d, normalize_mirror, rotate_offsets_around
+from .comparisons import annotation2key, annotations_lt, annotations_eq, layer2key, ports_lt, ports_eq, rep2key
 
-from . import ports2data as ports2data
+from . import ports2data
 
-from . import pack2d as pack2d
+from . import pack2d

masque/utils/autoslots.py

@@ -12,16 +12,16 @@ class AutoSlots(ABCMeta):
     classes, they can have empty `__slots__` and their attribute type annotations
     can be used to generate a full `__slots__` for the concrete class.
     """
-    def __new__(cls, name, bases, dctn):        # noqa: ANN001,ANN204
+    def __new__(cls, name, bases, dctn):
         parents = set()
         for base in bases:
             parents |= set(base.mro())
 
-        slots = tuple(dctn.get('__slots__', ()))
+        slots = tuple(dctn.get('__slots__', tuple()))
         for parent in parents:
             if not hasattr(parent, '__annotations__'):
                 continue
-            slots += tuple(parent.__annotations__.keys())
+            slots += tuple(getattr(parent, '__annotations__').keys())
 
         dctn['__slots__'] = slots
         return super().__new__(cls, name, bases, dctn)

masque/utils/comparisons.py

@@ -12,7 +12,7 @@ def annotation2key(aaa: int | float | str) -> tuple[bool, Any]:
 def annotations_lt(aa: annotations_t, bb: annotations_t) -> bool:
     if aa is None:
         return bb is not None
-    elif bb is None:            # noqa: RET505
+    elif bb is None:
         return False
 
     if len(aa) != len(bb):
@@ -29,7 +29,7 @@ def annotations_lt(aa: annotations_t, bb: annotations_t) -> bool:
         if len(va) != len(vb):
             return len(va) < len(vb)
 
-        for aaa, bbb in zip(va, vb, strict=True):
+        for aaa, bbb in zip(va, vb):
             if aaa != bbb:
                 return annotation2key(aaa) < annotation2key(bbb)
     return False
@@ -38,7 +38,7 @@ def annotations_lt(aa: annotations_t, bb: annotations_t) -> bool:
 def annotations_eq(aa: annotations_t, bb: annotations_t) -> bool:
     if aa is None:
         return bb is None
-    elif bb is None:            # noqa: RET505
+    elif bb is None:
         return False
 
     if len(aa) != len(bb):
@@ -55,7 +55,7 @@ def annotations_eq(aa: annotations_t, bb: annotations_t) -> bool:
         if len(va) != len(vb):
             return False
 
-        for aaa, bbb in zip(va, vb, strict=True):
+        for aaa, bbb in zip(va, vb):
             if aaa != bbb:
                 return False
 

masque/utils/decorators.py

@@ -1,4 +1,4 @@
-from collections.abc import Callable
+from typing import Callable
 from functools import wraps
 
 from ..error import OneShotError
@@ -11,7 +11,7 @@ def oneshot(func: Callable) -> Callable:
     expired = False
 
     @wraps(func)
-    def wrapper(*args, **kwargs):       # noqa: ANN202
+    def wrapper(*args, **kwargs):
         nonlocal expired
         if expired:
             raise OneShotError(func.__name__)

masque/utils/deferreddict.py

@@ -1,5 +1,4 @@
-from typing import TypeVar, Generic
-from collections.abc import Callable
+from typing import Callable, TypeVar, Generic
 from functools import lru_cache
 
 

masque/utils/pack2d.py

@@ -1,7 +1,7 @@
 """
 2D bin-packing
 """
-from collections.abc import Sequence, Mapping, Callable
+from typing import Sequence, Callable, Mapping
 
 import numpy
 from numpy.typing import NDArray, ArrayLike
@@ -38,8 +38,8 @@ def maxrects_bssf(
     Raises:
         MasqueError if `allow_rejects` is `True` but some `rects` could not be placed.
     """
-    regions = numpy.asarray(containers, dtype=float)
-    rect_sizes = numpy.asarray(rects, dtype=float)
+    regions = numpy.array(containers, copy=False, dtype=float)
+    rect_sizes = numpy.array(rects, copy=False, dtype=float)
     rect_locs = numpy.zeros_like(rect_sizes)
     rejected_inds = set()
 
@@ -70,7 +70,8 @@ def maxrects_bssf(
             if allow_rejects:
                 rejected_inds.add(rect_ind)
                 continue
-            raise MasqueError(f'Failed to find a suitable location for rectangle {rect_ind}')
+            else:
+                raise MasqueError(f'Failed to find a suitable location for rectangle {rect_ind}')
 
         # Read out location
         loc = regions[rr, :2]
@@ -139,8 +140,8 @@ def guillotine_bssf_sas(
     Raises:
         MasqueError if `allow_rejects` is `True` but some `rects` could not be placed.
     """
-    regions = numpy.asarray(containers, dtype=float)
-    rect_sizes = numpy.asarray(rects, dtype=float)
+    regions = numpy.array(containers, copy=False, dtype=float)
+    rect_sizes = numpy.array(rects, copy=False, dtype=float)
     rect_locs = numpy.zeros_like(rect_sizes)
     rejected_inds = set()
 
@@ -160,7 +161,8 @@ def guillotine_bssf_sas(
             if allow_rejects:
                 rejected_inds.add(rect_ind)
                 continue
-            raise MasqueError(f'Failed to find a suitable location for rectangle {rect_ind}')
+            else:
+                raise MasqueError(f'Failed to find a suitable location for rectangle {rect_ind}')
 
         # Read out location
         loc = regions[rr, :2]
@@ -227,7 +229,7 @@ def pack_patterns(
         MasqueError if `allow_rejects` is `True` but some `rects` could not be placed.
     """
 
-    half_spacing = numpy.asarray(spacing, dtype=float) / 2
+    half_spacing = numpy.array(spacing, copy=False, dtype=float) / 2
 
     bounds = [library[pp].get_bounds() for pp in patterns]
     sizes = [bb[1] - bb[0] + spacing if bb is not None else spacing for bb in bounds]
@@ -236,7 +238,7 @@ def pack_patterns(
     locations, reject_inds = packer(sizes, containers, presort=presort, allow_rejects=allow_rejects)
 
     pat = Pattern()
-    for pp, oo, loc in zip(patterns, offsets, locations, strict=True):
+    for pp, oo, loc in zip(patterns, offsets, locations):
         pat.ref(pp, offset=oo + loc)
 
     rejects = [patterns[ii] for ii in reject_inds]

masque/utils/ports2data.py

@@ -6,7 +6,7 @@ and retrieving it (`data_to_ports`).
 the port locations. This particular approach is just a sensible default; feel free to
 to write equivalent functions for your own format or alternate storage methods.
 """
-from collections.abc import Sequence, Mapping
+from typing import Sequence, Mapping
 import logging
 from itertools import chain
 
@@ -150,7 +150,7 @@ def data_to_ports_flat(
     Returns:
         The updated `pattern`. Port labels are not removed.
     """
-    labels = list(chain.from_iterable(pattern.labels[layer] for layer in layers))
+    labels = list(chain.from_iterable((pattern.labels[layer] for layer in layers)))
     if not labels:
         return pattern
 

masque/utils/transform.py

@@ -1,7 +1,7 @@
 """
 Geometric transforms
 """
-from collections.abc import Sequence
+from typing import Sequence
 from functools import lru_cache
 
 import numpy

masque/utils/vertices.py

@@ -15,9 +15,9 @@ def remove_duplicate_vertices(vertices: ArrayLike, closed_path: bool = True) ->
             (i.e. the last vertex will be removed if it is the same as the first)
 
     Returns:
-        `vertices` with no consecutive duplicates. This may be a view into the original array.
+        `vertices` with no consecutive duplicates.
     """
-    vertices = numpy.asarray(vertices)
+    vertices = numpy.array(vertices)
     duplicates = (vertices == numpy.roll(vertices, 1, axis=0)).all(axis=1)
     if not closed_path:
         duplicates[0] = False
@@ -35,7 +35,7 @@ def remove_colinear_vertices(vertices: ArrayLike, closed_path: bool = True) -> N
            closed path. If `False`, the path is assumed to be open. Default `True`.
 
     Returns:
-        `vertices` with colinear (superflous) vertices removed. May be a view into the original array.
+        `vertices` with colinear (superflous) vertices removed.
     """
     vertices = remove_duplicate_vertices(vertices)
 
@@ -73,8 +73,8 @@ def poly_contains_points(
     Returns:
         ndarray of booleans, [point0_is_in_shape, point1_is_in_shape, ...]
     """
-    points = numpy.asarray(points, dtype=float)
-    vertices = numpy.asarray(vertices, dtype=float)
+    points = numpy.array(points, copy=False)
+    vertices = numpy.array(vertices, copy=False)
 
     if points.size == 0:
         return numpy.zeros(0, dtype=numpy.int8)

pyproject.toml

@@ -42,7 +42,7 @@ classifiers = [
 requires-python = ">=3.11"
 dynamic = ["version"]
 dependencies = [
-    "numpy>=1.26",
+    "numpy~=1.21",
     "klamath~=1.2",
     ]
 
@@ -57,36 +57,3 @@ svg = ["svgwrite"]
 visualize = ["matplotlib"]
 text = ["matplotlib", "freetype-py"]
 
-
-[tool.ruff]
-exclude = [
-    ".git",
-    "dist",
-    ]
-line-length = 145
-indent-width = 4
-lint.dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
-lint.select = [
-    "NPY", "E", "F", "W", "B", "ANN", "UP", "SLOT", "SIM", "LOG",
-    "C4", "ISC", "PIE", "PT", "RET", "TCH", "PTH", "INT",
-    "ARG", "PL", "R", "TRY",
-    "G010", "G101", "G201", "G202",
-    "Q002", "Q003", "Q004",
-    ]
-lint.ignore = [
-    #"ANN001",   # No annotation
-    "ANN002",   # *args
-    "ANN003",   # **kwargs
-    "ANN401",   # Any
-    "ANN101",   # self: Self
-    "SIM108",   # single-line if / else assignment
-    "RET504",   # x=y+z; return x
-    "PIE790",   # unnecessary pass
-    "ISC003",   # non-implicit string concatenation
-    "C408",     # dict(x=y) instead of {'x': y}
-    "PLR09",    # Too many xxx
-    "PLR2004",  # magic number
-    "PLC0414",  # import x as x
-    "TRY003",   # Long exception message
-    ]
-