[Placement] fix writing placement

Main changes are numpy 2.0 compatibility and improved type annotations

README.md

@@ -4,7 +4,6 @@
 
 **Homepage:** https://mpxd.net/code/jan/fatamorgana
 * [PyPI](https://pypi.org/project/fatamorgana)
-* [Github mirror](https://github.com/anewusername/fatamorgana)
 
 **Capabilities:**
 * This package is a work-in-progress and is largely untested -- it works for
@@ -22,18 +21,13 @@
 ## Installation
 
 **Dependencies:**
-* python >=3.10
+* python >=3.11
 * (optional) numpy
 
 
 Install with pip from PyPi (preferred):
 ```bash
-pip3 install fatamorgana
-```
-
-Install directly from git repository:
-```bash
-pip3 install git+https://mpxd.net/code/jan/fatamorgana.git@release
+pip install fatamorgana
 ```
 
 ## Documentation
@@ -44,7 +38,6 @@ To read the inline help,
 import fatamorgana
 help(fatamorgana.OasisLayout)
 ```
-The documentation is currently very sparse and I expect to improve it whenever possible!
 
 
 ## Examples

fatamorgana/__init__.py

@@ -15,7 +15,7 @@
   numpy to speed up reading/writing.
 
  Dependencies:
-    - Python 3.8 or later
+    - Python 3.11 or later
     - numpy (optional, faster but no additional functionality)
 
  To get started, try:
@@ -24,17 +24,28 @@
     help(fatamorgana.OasisLayout)
  ```
 """
-import pathlib
-
-from .main import OasisLayout, Cell, XName
+from .main import (
+    OasisLayout as OasisLayout,
+    Cell as Cell,
+    XName as XName,
+    )
 from .basic import (
-    NString, AString, Validation, OffsetTable, OffsetEntry,
-    EOFError, SignedError, InvalidDataError, InvalidRecordError,
-    UnfilledModalError,
-    ReuseRepetition, GridRepetition, ArbitraryRepetition
+    NString as NString,
+    AString as AString,
+    Validation as Validation,
+    OffsetTable as OffsetTable,
+    OffsetEntry as OffsetEntry,
+    EOFError as EOFError,
+    SignedError as SignedError,
+    InvalidDataError as InvalidDataError,
+    InvalidRecordError as InvalidRecordError,
+    UnfilledModalError as UnfilledModalError,
+    ReuseRepetition as ReuseRepetition,
+    GridRepetition as GridRepetition,
+    ArbitraryRepetition as ArbitraryRepetition,
     )
 
 
 __author__ = 'Jan Petykiewicz'
-__version__ = '0.12'
+__version__ = '0.13'
 version = __version__

fatamorgana/basic.py

@@ -2,7 +2,8 @@
 This module contains all datatypes and parsing/writing functions for
  all abstractions below the 'record' or 'block' level.
 """
-from typing import Type, Union, Any, Sequence, IO
+from typing import Any, IO, Union, TYPE_CHECKING
+from collections.abc import Sequence
 from fractions import Fraction
 from enum import Enum
 import math
@@ -20,7 +21,7 @@ except ImportError:
 '''
     Type definitions
 '''
-real_t = Union[int, float, Fraction]
+real_t = int | float | Fraction
 repetition_t = Union['ReuseRepetition', 'GridRepetition', 'ArbitraryRepetition']
 property_value_t = Union[int, bytes, 'AString', 'NString', 'PropStringReference', float, Fraction]
 bytes_t = bytes
@@ -184,7 +185,7 @@ if _USE_NUMPY:
         byte_arr = _read(stream, 1)
         return numpy.unpackbits(numpy.frombuffer(byte_arr, dtype=numpy.uint8))
 
-    def _np_write_bool_byte(stream: IO[bytes], bits: tuple[Union[bool, int], ...]) -> int:
+    def _np_write_bool_byte(stream: IO[bytes], bits: tuple[bool | int, ...]) -> int:
         """
         Pack 8 booleans into a byte, and write it to the stream.
 
@@ -249,6 +250,7 @@ def write_uint(stream: IO[bytes], n: int) -> int:
     Raises:
         SignedError: if `n` is negative.
     """
+    n = int(n)
     if n < 0:
         raise SignedError(f'uint must be positive: {n}')
 
@@ -294,6 +296,7 @@ def encode_sint(sint: int) -> int:
     Returns:
         Unsigned integer encoding for the input.
     """
+    sint = int(sint)
     return (abs(sint) << 1) | (sint < 0)
 
 
@@ -343,7 +346,7 @@ def read_bstring(stream: IO[bytes]) -> bytes:
     return _read(stream, length)
 
 
-def write_bstring(stream: IO[bytes], bstring: bytes):
+def write_bstring(stream: IO[bytes], bstring: bytes) -> int:
     """
     Write a binary string to the stream.
     See `read_bstring()` for format details.
@@ -563,7 +566,7 @@ class NString:
     """
     _string: str
 
-    def __init__(self, string_or_bytes: Union[bytes, str]) -> None:
+    def __init__(self, string_or_bytes: bytes | str) -> None:
         """
         Args:
             string_or_bytes: Content of the `NString`.
@@ -677,7 +680,7 @@ class AString:
     """
     _string: str
 
-    def __init__(self, string_or_bytes: Union[bytes, str]) -> None:
+    def __init__(self, string_or_bytes: bytes | str) -> None:
         """
         Args:
             string_or_bytes: Content of the AString.
@@ -949,7 +952,7 @@ class OctangularDelta:
             sign = self.octangle & 0x02 > 0
             xy[axis] = self.proj_mag * (1 - 2 * sign)
             return xy
-        else:
+        else:       # noqa: RET505
             yn = (self.octangle & 0x02) > 0
             xyn = (self.octangle & 0x01) > 0
             ys = 1 - 2 * yn
@@ -1096,7 +1099,6 @@ class Delta:
         """
         if self.x == 0 or self.y == 0 or abs(self.x) == abs(self.y):
             return write_uint(stream, OctangularDelta(self.x, self.y).as_uint() << 1)
-        else:
         size = write_uint(stream, (encode_sint(self.x) << 1) | 0x01)
         size += write_uint(stream, encode_sint(self.y))
         return size
@@ -1124,11 +1126,10 @@ def read_repetition(stream: IO[bytes]) -> repetition_t:
     rtype = read_uint(stream)
     if rtype == 0:
         return ReuseRepetition.read(stream, rtype)
-    elif rtype in (1, 2, 3, 8, 9):
+    if rtype in (1, 2, 3, 8, 9):
         return GridRepetition.read(stream, rtype)
-    elif rtype in (4, 5, 6, 7, 10, 11):
+    if rtype in (4, 5, 6, 7, 10, 11):
         return ArbitraryRepetition.read(stream, rtype)
-    else:
     raise InvalidDataError(f'Unexpected repetition type: {rtype}')
 
 
@@ -1195,7 +1196,8 @@ class GridRepetition:
             a_vector: Sequence[int],
             a_count: int,
             b_vector: Sequence[int] | None = None,
-            b_count: int | None = None):
+            b_count: int | None = None,
+            ) -> None:
         """
         Args:
             a_vector: First lattice vector, of the form `[x, y]`.
@@ -1211,6 +1213,10 @@ class GridRepetition:
             InvalidDataError: if `b_count` and `b_vector` inputs conflict
                 with each other or if `a_count < 1`.
         """
+        a_count = int(a_count)
+        if b_count is not None:
+            b_count = int(b_count)
+
         if b_vector is None or b_count is None:
             if b_vector is not None or b_count is not None:
                 raise InvalidDataError('Repetition has only one of'
@@ -1221,7 +1227,7 @@ class GridRepetition:
             if b_count < 2:
                 b_count = None
                 b_vector = None
-                warnings.warn('Removed b_count and b_vector since b_count == 1')
+                warnings.warn('Removed b_count and b_vector since b_count == 1', stacklevel=2)
 
         if a_count < 2:
             raise InvalidDataError(f'Repetition has too-small a_count: {a_count}')
@@ -1310,7 +1316,7 @@ class GridRepetition:
                 size = write_uint(stream, 9)
                 size += write_uint(stream, self.a_count - 2)
                 size += Delta(*self.a_vector).write(stream)
-        else:
+        else:   # noqa: PLR5501
             if self.a_vector[1] == 0 and self.b_vector[0] == 0:
                 size = write_uint(stream, 1)
                 size += write_uint(stream, self.a_count - 2)
@@ -1342,7 +1348,7 @@ class GridRepetition:
             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)):
+        if any(self.b_vector[ii] != other.b_vector[ii] for ii in range(2)):     # noqa: SIM103
             return False
         return True
 
@@ -1486,13 +1492,13 @@ class ArbitraryRepetition:
                 size = write_uint(stream, 10)
                 size += write_uint(stream, len(self.x_displacements) - 1)
                 size += sum(Delta(x, y).write(stream)
-                            for x, y in zip(self.x_displacements, self.y_displacements))
+                            for x, y in zip(self.x_displacements, self.y_displacements, strict=True))
             else:
                 size = write_uint(stream, 11)
                 size += write_uint(stream, len(self.x_displacements) - 1)
                 size += write_uint(stream, gcd)
                 size += sum(Delta(x // gcd, y // gcd).write(stream)
-                            for x, y in zip(self.x_displacements, self.y_displacements))
+                            for x, y in zip(self.x_displacements, self.y_displacements, strict=True))
         return size
 
     def __eq__(self, other: Any) -> bool:
@@ -1580,7 +1586,7 @@ def read_point_list(
         assert (dx == 0) or (dy == 0)
         close_points = [[-dx, -dy]]
     elif list_type == 3:
-        assert (dx == 0) or (dy == 0) or (dx == dy) or (dx == -dy)
+        assert 0 in (dx, dy) or dx in (dy, -dy)
         close_points = [[-dx, -dy]]
     else:
         close_points = [[-dx, -dy]]
@@ -1595,7 +1601,7 @@ def read_point_list(
 
 def write_point_list(
         stream: IO[bytes],
-        points: list[Sequence[int]],
+        points: 'list[Sequence[int]] | NDArray',
         fast: bool = False,
         implicit_closed: bool = True
         ) -> int:
@@ -1618,6 +1624,8 @@ def write_point_list(
         Number of bytes written.
     """
     # If we're in a hurry, just write the points as arbitrary Deltas
+    if _USE_NUMPY:
+        points = numpy.asarray(points, dtype=int)
     if fast:
         size = write_uint(stream, 4)
         size += write_uint(stream, len(points))
@@ -1636,8 +1644,7 @@ def write_point_list(
                 h_first = False
                 v_first = False
                 break
-        else:
-            if point[1] != previous[1] or point[0] == previous[0]:
+        elif point[1] != previous[1] or point[0] == previous[0]:
             h_first = False
             v_first = False
             break
@@ -1649,7 +1656,7 @@ def write_point_list(
         size += write_uint(stream, len(points))
         size += sum(write_sint(stream, x + y) for x, y in points)
         return size
-    elif v_first:
+    if v_first:
         size = write_uint(stream, 1)
         size += write_uint(stream, len(points))
         size += sum(write_sint(stream, x + y) for x, y in points)
@@ -1722,19 +1729,20 @@ class PropStringReference:
     ref: int
     """ID of the target"""
 
-    reference_type: Type
+    reference_type: type
     """Type of the target: `bytes`, `NString`, or `AString`"""
 
-    def __init__(self, ref: int, ref_type: Type) -> None:
+    def __init__(self, ref: int, ref_type: type) -> None:
         """
-        :param ref: ID number of the target.
-        :param ref_type: Type of the target. One of bytes, NString, AString.
+        Args:
+            ref: ID number of the target.
+            ref_type: Type of the target. One of bytes, NString, AString.
         """
         self.ref = ref
         self.ref_type = ref_type
 
     def __eq__(self, other: Any) -> bool:
-        return isinstance(other, type(self)) and self.ref == other.ref and self.reference_type == other.reference_type
+        return isinstance(other, type(self)) and self.ref == other.ref and self.reference_type is other.reference_type
 
     def __repr__(self) -> str:
         return f'[{self.ref_type} : {self.ref}]'
@@ -1767,33 +1775,32 @@ def read_property_value(stream: IO[bytes]) -> property_value_t:
     Raises:
         InvalidDataError: if an invalid type is read.
     """
-    ref_type: Type
+    ref_type: type
     prop_type = read_uint(stream)
     if 0 <= prop_type <= 7:
         return read_real(stream, prop_type)
-    elif prop_type == 8:
+    if prop_type == 8:
         return read_uint(stream)
-    elif prop_type == 9:
+    if prop_type == 9:
         return read_sint(stream)
-    elif prop_type == 10:
+    if prop_type == 10:
         return AString.read(stream)
-    elif prop_type == 11:
+    if prop_type == 11:
         return read_bstring(stream)
-    elif prop_type == 12:
+    if prop_type == 12:
         return NString.read(stream)
-    elif prop_type == 13:
+    if prop_type == 13:
         ref_type = AString
         ref = read_uint(stream)
         return PropStringReference(ref, ref_type)
-    elif prop_type == 14:
+    if prop_type == 14:
         ref_type = bytes
         ref = read_uint(stream)
         return PropStringReference(ref, ref_type)
-    elif prop_type == 15:
+    if prop_type == 15:
         ref_type = NString
         ref = read_uint(stream)
         return PropStringReference(ref, ref_type)
-    else:
     raise InvalidDataError(f'Invalid property type: {prop_type}')
 
 
@@ -1830,7 +1837,7 @@ def write_property_value(
         else:
             size = write_uint(stream, 8)
             size += write_uint(stream, value)
-    elif isinstance(value, (Fraction, float, int)):
+    elif isinstance(value, Fraction | float | int):
         size = write_real(stream, value, force_float32)
     elif isinstance(value, AString):
         size = write_uint(stream, 10)
@@ -1842,11 +1849,11 @@ def write_property_value(
         size = write_uint(stream, 12)
         size += value.write(stream)
     elif isinstance(value, PropStringReference):
-        if value.ref_type == AString:
+        if value.ref_type is AString:
             size = write_uint(stream, 13)
-        elif value.ref_type == bytes:
+        elif value.ref_type is bytes:
             size = write_uint(stream, 14)
-        if value.ref_type == AString:
+        if value.ref_type is AString:
             size = write_uint(stream, 15)
         size += write_uint(stream, value.ref)
     else:
@@ -1881,16 +1888,15 @@ def read_interval(stream: IO[bytes]) -> tuple[int | None, int | None]:
     interval_type = read_uint(stream)
     if interval_type == 0:
         return None, None
-    elif interval_type == 1:
+    if interval_type == 1:
         return None, read_uint(stream)
-    elif interval_type == 2:
+    if interval_type == 2:
         return read_uint(stream), None
-    elif interval_type == 3:
+    if interval_type == 3:
         v = read_uint(stream)
         return v, v
-    elif interval_type == 4:
+    if interval_type == 4:
         return read_uint(stream), read_uint(stream)
-    else:
     raise InvalidDataError(f'Unrecognized interval type: {interval_type}')
 
 
@@ -1914,14 +1920,11 @@ def write_interval(
     if min_bound is None:
         if max_bound is None:
             return write_uint(stream, 0)
-        else:
         return write_uint(stream, 1) + write_uint(stream, max_bound)
-    else:
     if max_bound is None:
         return write_uint(stream, 2) + write_uint(stream, min_bound)
-        elif min_bound == max_bound:
+    if min_bound == max_bound:
         return write_uint(stream, 3) + write_uint(stream, min_bound)
-        else:
     size = write_uint(stream, 4)
     size += write_uint(stream, min_bound)
     size += write_uint(stream, max_bound)
@@ -2188,9 +2191,7 @@ class Validation:
         checksum_type = read_uint(stream)
         if checksum_type == 0:
             checksum = None
-        elif checksum_type == 1:
-            checksum = read_u32(stream)
-        elif checksum_type == 2:
+        elif checksum_type in (1, 2):
             checksum = read_u32(stream)
         else:
             raise InvalidDataError('Invalid validation type!')
@@ -2212,13 +2213,12 @@ class Validation:
         """
         if self.checksum_type == 0:
             return write_uint(stream, 0)
-        elif self.checksum is None:
+        if self.checksum is None:
             raise InvalidDataError(f'Checksum is empty but type is {self.checksum_type}')
-        elif self.checksum_type == 1:
+        if self.checksum_type == 1:
             return write_uint(stream, 1) + write_u32(stream, self.checksum)
-        elif self.checksum_type == 2:
+        if self.checksum_type == 2:
             return write_uint(stream, 2) + write_u32(stream, self.checksum)
-        else:
         raise InvalidDataError(f'Unrecognized checksum type: {self.checksum_type}')
 
     def __repr__(self) -> str:
@@ -2238,7 +2238,7 @@ def write_magic_bytes(stream: IO[bytes]) -> int:
     return stream.write(MAGIC_BYTES)
 
 
-def read_magic_bytes(stream: IO[bytes]):
+def read_magic_bytes(stream: IO[bytes]) -> None:
     """
     Read the magic byte sequence from a stream.
     Raise an `InvalidDataError` if it was not found.

fatamorgana/main.py

@@ -3,7 +3,7 @@ This module contains data structures and functions for reading from and
  writing to whole OASIS layout files, and provides a few additional
  abstractions for the data contained inside them.
 """
-from typing import Type, IO
+from typing import IO
 import io
 import logging
 
@@ -163,11 +163,10 @@ class OasisLayout:
         """
         try:
             record_id = read_uint(stream)
-        except EOFError as e:
+        except EOFError:
             if file_state.within_cblock:
                 return True
-            else:
-                raise e
+            raise
 
         logger.info(f'read_record of type {record_id} at position 0x{stream.tell():x}')
 
@@ -193,7 +192,6 @@ class OasisLayout:
         if record_id == 1:
             if file_state.started:
                 raise InvalidRecordError('Duplicate Start record')
-            else:
             file_state.started = True
         if record_id == 2 and file_state.within_cblock:
             raise InvalidRecordError('End within CBlock')
@@ -204,7 +202,7 @@ class OasisLayout:
             file_state.within_cell = False
         elif record_id in range(15, 28) or record_id in (32, 33):
             if not file_state.within_cell:
-                raise Exception('Geometry outside Cell')
+                raise InvalidRecordError('Geometry outside Cell')
         elif record_id in (13, 14):
             file_state.within_cell = True
         else:
@@ -422,7 +420,7 @@ class Cell:
             placements: list[records.Placement] | None = None,
             geometry: list[records.geometry_t] | None = None,
             ) -> None:
-        self.name = name if isinstance(name, (NString, int)) else NString(name)
+        self.name = name if isinstance(name, NString | int) else NString(name)
         self.properties = [] if properties is None else properties
         self.placements = [] if placements is None else placements
         self.geometry = [] if geometry is None else geometry
@@ -528,7 +526,7 @@ class XName:
 
 
 # Mapping from record id to record class.
-_GEOMETRY: dict[int, Type[records.geometry_t]] = {
+_GEOMETRY: dict[int, type[records.geometry_t]] = {
     19: records.Text,
     20: records.Rectangle,
     21: records.Polygon,

fatamorgana/test/build_testfiles.py

@@ -1,8 +1,10 @@
-'''
+"""
 Build files equivalent to the test cases used by KLayout.
-'''
+"""
 
-from typing import Callable, IO
+from typing import IO
+from collections.abc import Callable
+from pathlib import Path
 
 
 from . import (
@@ -15,8 +17,8 @@ from . import (
 
 
 def build_file(num: str, func: Callable[[IO[bytes]], IO[bytes]]) -> None:
-    with open('t' + num + '.oas', 'wb') as f:
-        func(f)
+    with Path('t' + num + '.oas').open('wb') as ff:
+        func(ff)
 
 
 def write_all_files() -> None:

fatamorgana/test/test_files_cblocks.py

@@ -1,4 +1,4 @@
-# type: ignore
+# mypy: disable-error-code="union-attr"
 from typing import IO
 from io import BytesIO
 
@@ -27,8 +27,8 @@ def base_tests(layout: OasisLayout) -> None:
 
 
 def write_file_1(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
 
     write_uint(buf, 14)          # CELL record (explicit)

fatamorgana/test/test_files_cells.py

@@ -1,4 +1,4 @@
-# type: ignore
+# mypy: disable-error-code="union-attr"
 from typing import IO
 from io import BytesIO
 
@@ -24,9 +24,9 @@ def base_tests(layout: OasisLayout) -> None:
 
 
 def write_file_1(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     Single cell with explicit name 'XYZ'
-    '''
+    """
     buf.write(HEADER)
 
     write_uint(buf, 14)          # CELL record (explicit)
@@ -49,9 +49,9 @@ def test_file_1() -> None:
 
 
 def write_file_2(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     Two cellnames ('XYZ', 'ABC') and two cells with name references.
-    '''
+    """
     buf.write(HEADER)
 
     write_uint(buf, 3)           # CELLNAME record (implicit id 0)
@@ -86,9 +86,9 @@ def test_file_2() -> None:
 
 
 def write_file_3(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     Invalid file, contains a mix of explicit and implicit cellnames
-    '''
+    """
     buf.write(HEADER)
 
     write_uint(buf, 4)           # CELLNAME record (explicit id)
@@ -113,13 +113,13 @@ def test_file_3() -> None:
 
     buf.seek(0)
     with pytest.raises(InvalidRecordError):
-        layout = OasisLayout.read(buf)
+        _layout = OasisLayout.read(buf)
 
 
 def write_file_4(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     Two cells referencing two names with explicit ids (unsorted)
-    '''
+    """
     buf.write(HEADER)
 
     write_uint(buf, 4)           # CELLNAME record (explicit id)
@@ -156,9 +156,9 @@ def test_file_4() -> None:
 
 
 def write_file_5(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     Reference to non-existent cell name.
-    '''
+    """
     buf.write(HEADER)
 
     write_uint(buf, 4)           # CELLNAME record (explicit id)
@@ -197,9 +197,9 @@ def test_file_5() -> None:
 
 
 def write_file_6(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     Cellname with invalid n-string.
-    '''
+    """
     buf.write(HEADER)
 
     write_uint(buf, 4)           # CELLNAME record (explicit id)
@@ -226,7 +226,7 @@ def test_file_6() -> None:
     buf.seek(0)
 
     with pytest.raises(InvalidDataError):
-        layout = OasisLayout.read(buf)
+        _layout = OasisLayout.read(buf)
 
     #base_tests(layout)
     #assert len(layout.cellnames) == 2
@@ -238,9 +238,9 @@ def test_file_6() -> None:
 
 
 def write_file_7(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     Unused cellname.
-    '''
+    """
     buf.write(HEADER)
 
     write_uint(buf, 4)           # CELLNAME record (explicit id)

fatamorgana/test/test_files_circles.py

@@ -1,4 +1,4 @@
-# type: ignore
+# mypy: disable-error-code="union-attr"
 from typing import IO
 from io import BytesIO
 
@@ -25,8 +25,8 @@ def base_tests(layout: OasisLayout) -> None:
 
 
 def write_file_1(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
 
     write_uint(buf, 14)           # CELL record (explicit)

fatamorgana/test/test_files_ctrapezoids.py

@@ -1,4 +1,4 @@
-# type: ignore
+# mypy: disable-error-code="union-attr"
 from typing import IO
 from io import BytesIO
 
@@ -21,8 +21,8 @@ def base_tests(layout: OasisLayout) -> None:
 
 
 def write_file_1(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
 
     write_uint(buf, 14)           # CELL record (explicit)
@@ -61,7 +61,7 @@ def write_file_1(buf: IO[bytes]) -> IO[bytes]:
            + [0b11, 0b10]
            )
 
-    for t, (x, x_en) in enumerate(zip(wh, wh_en)):
+    for t, (x, x_en) in enumerate(zip(wh, wh_en, strict=True)):
         write_uint(buf, 26)           # CTRAPEZOID record
         write_byte(buf, 0b1000_1011 | (x_en << 5))    # TWHX_YRDL
         write_uint(buf, 1)            # layer
@@ -135,8 +135,7 @@ def test_file_1() -> None:
                 assert gg.width == [250, None][is_ctrapz], msg
             elif ct_type in range(22, 24) or ct_type == 25:
                 assert gg.height == [100, None][is_ctrapz], msg
-            else:
-                if ct_type < 8 or 16 <= ct_type < 25 or 26 <= ct_type:
+            elif ct_type < 8 or 16 <= ct_type < 25 or ct_type >= 26:
                 assert gg.width == 250, msg
                 assert gg.height == 100, msg
             else:
@@ -154,8 +153,8 @@ def test_file_1() -> None:
 
 
 def write_file_2(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
 
     write_uint(buf, 14)          # CELL record (explicit)

fatamorgana/test/test_files_empty.py

@@ -1,4 +1,3 @@
-# type: ignore
 from typing import IO
 from io import BytesIO
 import struct
@@ -23,11 +22,11 @@ def base_tests(layout: OasisLayout) -> None:
 
 
 def write_file_1(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     File contains one PAD record.
     1000 units/micron
     Offset table inside START.
-    '''
+    """
     buf.write(MAGIC_BYTES)
 
     write_uint(buf, 1)           # START record
@@ -56,11 +55,11 @@ def test_file_1() -> None:
 
 
 def write_file_2(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     File contains no records.
     1/2 unit/micron
     Offset table inside START.
-    '''
+    """
     buf.write(MAGIC_BYTES)
 
     write_uint(buf, 1)           # START record
@@ -87,11 +86,11 @@ def test_file_2() -> None:
 
 
 def write_file_3(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     File contains no records.
     10/4 unit/micron
     Offset table inside START.
-    '''
+    """
     buf.write(MAGIC_BYTES)
 
     write_uint(buf, 1)           # START record
@@ -119,11 +118,11 @@ def test_file_3() -> None:
 
 
 def write_file_4(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     File contains no records.
     12.5 unit/micron (float32)
     Offset table inside START.
-    '''
+    """
     buf.write(MAGIC_BYTES)
 
     write_uint(buf, 1)           # START record
@@ -150,11 +149,11 @@ def test_file_4() -> None:
 
 
 def write_file_5(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     File contains no records.
     12.5 unit/micron (float64)
     Offset table inside START.
-    '''
+    """
     buf.write(MAGIC_BYTES)
 
     write_uint(buf, 1)           # START record

fatamorgana/test/test_files_layernames.py

@@ -1,5 +1,5 @@
-# type: ignore
-from typing import Sequence, IO
+from typing import IO
+from collections.abc import Sequence
 
 from io import BytesIO
 
@@ -27,7 +27,7 @@ def base_tests(layout: OasisLayout) -> None:
     assert not layout.cellnames
 
     assert len(layout.cells) == 1
-    assert layout.cells[0].name.string == 'A'
+    assert layout.cells[0].name.string == 'A'           # type: ignore
     assert not layout.cells[0].properties
 
 
@@ -207,8 +207,8 @@ def elem_test_text(geometry: Sequence) -> None:
 
 
 def write_file_1(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
     write_names_geom(buf)
 
@@ -237,8 +237,8 @@ def test_file_1() -> None:
 
 
 def write_file_2(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
     write_names_text(buf)
 
@@ -267,8 +267,8 @@ def test_file_2() -> None:
 
 
 def write_file_3(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
     write_names_text(buf, prefix=b'T')
     write_names_geom(buf, short=True)
@@ -283,8 +283,8 @@ def write_file_3(buf: IO[bytes]) -> IO[bytes]:
 
 
 def write_file_4(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
 
     write_uint(buf, 14)          # CELL record (explicit)

fatamorgana/test/test_files_modals.py

@@ -1,4 +1,4 @@
-# type: ignore
+# mypy: disable-error-code="union-attr"
 from typing import IO
 from io import BytesIO
 
@@ -21,8 +21,8 @@ def base_tests(layout: OasisLayout) -> None:
 
 
 def write_file_1(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
 
     write_uint(buf, 14)           # CELL record (explicit)

fatamorgana/test/test_files_paths.py

@@ -1,4 +1,4 @@
-# type: ignore
+# mypy: disable-error-code="union-attr"
 from typing import IO
 from io import BytesIO
 
@@ -27,8 +27,8 @@ def base_tests(layout: OasisLayout) -> None:
 
 
 def write_file_1(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
 
     write_uint(buf, 14)           # CELL record (explicit)
@@ -182,7 +182,7 @@ def test_file_1() -> None:
         else:
             assert gg.half_width == 12, msg
 
-        assert len(gg.point_list) == 3, msg
+        assert len(gg.point_list) == 3, msg         # type: ignore
         assert_equal(gg.point_list, [[150, 0], [0, 50], [-50, 0]], err_msg=msg)
 
         if ii >= 4:

fatamorgana/test/test_files_placements.py

@@ -1,5 +1,5 @@
-# type: ignore
-from typing import Tuple, IO, cast, List
+# mypy: disable-error-code="union-attr"
+from typing import IO, cast
 from io import BytesIO
 
 from numpy.testing import assert_equal
@@ -22,7 +22,7 @@ def base_tests(layout: OasisLayout) -> None:
     assert not layout.layers
 
 
-def write_rectangle(buf: IO[bytes], pos: Tuple[int, int] = (300, -400)) -> None:
+def write_rectangle(buf: IO[bytes], pos: tuple[int, int] = (300, -400)) -> None:
     write_uint(buf, 20)           # RECTANGLE record
     write_byte(buf, 0b0111_1011)  # SWHX_YRDL
     write_uint(buf, 1)            # layer
@@ -34,8 +34,8 @@ def write_rectangle(buf: IO[bytes], pos: Tuple[int, int] = (300, -400)) -> None:
 
 
 def write_file_1(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
 
     write_uint(buf, 14)            # CELL record (explicit)
@@ -174,7 +174,7 @@ def test_file_1() -> None:
     assert not layout.cells[1].properties
     assert not layout.cells[1].geometry
 
-    geometry = cast(List[Rectangle], layout.cells[0].geometry)
+    geometry = cast(list[Rectangle], layout.cells[0].geometry)
     assert len(geometry) == 1
     assert geometry[0].layer == 1
     assert geometry[0].datatype == 2
@@ -202,7 +202,7 @@ def test_file_1() -> None:
 
         if ii < 3:
             assert pp.y == 400 * (ii + 1), msg
-        elif 7 <= ii:
+        elif ii >= 7:
             assert pp.y == 0, msg
 
         if ii < 4 or ii == 5:
@@ -214,7 +214,7 @@ def test_file_1() -> None:
             assert pp.angle == 0, msg
         elif ii in (5, 6):
             assert pp.angle == 90, msg
-        elif 7 <= ii:
+        elif ii >= 7:
             assert pp.angle == 270, msg
 
         if ii < 7:
@@ -250,8 +250,8 @@ def test_file_1() -> None:
 
 
 def write_file_common(buf: IO[bytes], variant: int) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     assert variant in (2, 3, 5, 7), 'Error in test definition!'
 
     buf.write(HEADER)
@@ -516,8 +516,8 @@ def common_tests(layout: OasisLayout, variant: int) -> None:
 
 
 def write_file_4(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
 
     write_uint(buf, 3)            # CELLNAME record (implicit id 0)
@@ -595,8 +595,8 @@ def write_file_4(buf: IO[bytes]) -> IO[bytes]:
 
 
 def write_file_6(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
 
     write_uint(buf, 14)            # CELL record (explicit)
@@ -748,8 +748,8 @@ def test_file_6() -> None:
 
 
 def write_file_8(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
 
     write_uint(buf, 14)            # CELL record (explicit)
@@ -843,7 +843,7 @@ def test_file_8() -> None:
     assert not layout.cells[2].properties
     assert not layout.cells[2].placements
 
-    geometry = cast(List[Rectangle], layout.cells[2].geometry)
+    geometry = cast(list[Rectangle], layout.cells[2].geometry)
     assert len(geometry) == 1
     assert geometry[0].layer == 1
     assert geometry[0].datatype == 2

fatamorgana/test/test_files_polygons.py

@@ -1,4 +1,4 @@
-# type: ignore
+# mypy: disable-error-code="union-attr, arg-type"
 from typing import IO
 from io import BytesIO
 
@@ -107,8 +107,8 @@ def common_tests(layout: OasisLayout) -> None:
 
 
 def write_file_common(buf: IO[bytes], variant: int) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     assert variant in (1, 3), 'Error in test!!'
 
     buf.write(HEADER)
@@ -376,8 +376,8 @@ def test_file_1() -> None:
 
 
 def write_file_2(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
 
     write_uint(buf, 14)          # CELL record (explicit)
@@ -445,7 +445,7 @@ def test_file_3() -> None:
     for ii, gg in enumerate(geometry):
         msg = f'Fail on polygon {ii}'
         assert len(gg.properties) == 1, msg
-        assert gg.properties[0].name == 0, msg
+        assert gg.properties[0].name == 0, msg                  # type: ignore
         assert len(gg.properties[0].values) == 1, msg
-        assert gg.properties[0].values[0] * 5 == 1, msg
+        assert gg.properties[0].values[0] * 5 == 1, msg         # type: ignore
 

fatamorgana/test/test_files_properties.py

@@ -1,4 +1,4 @@
-# type: ignore
+# mypy: disable-error-code="union-attr, index, arg-type"
 from typing import IO
 from io import BytesIO
 
@@ -24,11 +24,11 @@ def base_tests(layout: OasisLayout) -> None:
 
 
 def write_file_common(buf: IO[bytes], variant: int) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     include_repetitions = variant in (2, 5)
 
-    def var_byte(buf, byte):
+    def var_byte(buf: IO[bytes], byte: int) -> None:
         if include_repetitions:
             byte |= 0b0100
         write_byte(buf, byte)
@@ -355,8 +355,8 @@ def test_file_5() -> None:
 
 
 def write_file_3(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
 
     write_uint(buf, 10)     # PROPSTRING (explicit id)
@@ -580,8 +580,8 @@ def test_file_3() -> None:
 
 
 def write_file_4_6(buf: IO[bytes], variant: int) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
 
     write_uint(buf, 10)     # PROPSTRING (explicit id)
@@ -786,8 +786,8 @@ def write_file_4_6(buf: IO[bytes], variant: int) -> IO[bytes]:
 
 
 def test_file_4() -> None:
-    '''
-    '''
+    """
+    """
     buf = write_file_4_6(BytesIO(), 4)
 
     buf.seek(0)
@@ -823,7 +823,7 @@ def test_file_4() -> None:
         assert pp.x == [-300, 0, 0, 300, 700, 700, 700, 2000, 4000, 6000, 8000, 10000, 12000][ii], msg
         assert pp.y == [400, 200, 400, 400, 400, 1400, 2400, 0, 0, 0, 0, 0, 0][ii], msg
 
-        if ii == 4 or 6 <= ii:
+        if ii == 4 or ii >= 6:
             assert pp.flip, msg
         else:
             assert not pp.flip, msg
@@ -855,8 +855,8 @@ def test_file_4() -> None:
 
 
 def test_file_6() -> None:
-    '''
-    '''
+    """
+    """
     buf = write_file_4_6(BytesIO(), 6)
 
     buf.seek(0)
@@ -892,7 +892,7 @@ def test_file_6() -> None:
         assert pp.x == [-300, 0, 0, 300, 700, 700, 700, 2000, 4000, 6000, 8000, 10000, 12000][ii], msg
         assert pp.y == [400, 400, 400, 400, 400, 1400, 2400, 0, 0, 0, 0, 0, 0][ii], msg
 
-        if ii == 4 or 6 <= ii:
+        if ii == 4 or ii >= 6:
             assert pp.flip, msg
         else:
             assert not pp.flip, msg
@@ -928,8 +928,8 @@ def test_file_6() -> None:
 
 
 def write_file_7_8_9(buf: IO[bytes], variant: int) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
 
     write_uint(buf, 28)               # PROPERTY record
@@ -1059,20 +1059,20 @@ def test_file_7() -> None:
 
 
 def test_file_8() -> None:
-    '''
-    '''
+    """
+    """
     buf = write_file_7_8_9(BytesIO(), 8)
 
     buf.seek(0)
     with pytest.raises(InvalidDataError):
-        layout = OasisLayout.read(buf)
+        _layout = OasisLayout.read(buf)
 
 
 def test_file_9() -> None:
-    '''
-    '''
+    """
+    """
     buf = write_file_7_8_9(BytesIO(), 9)
 
     buf.seek(0)
     with pytest.raises(InvalidDataError):
-        layout = OasisLayout.read(buf)
+        _layout = OasisLayout.read(buf)

fatamorgana/test/test_files_rectangles.py

@@ -1,4 +1,4 @@
-# type: ignore
+# mypy: disable-error-code="union-attr"
 from typing import IO
 from io import BytesIO
 
@@ -75,8 +75,8 @@ def base_tests(layout: OasisLayout) -> None:
 
 
 def write_file_common(buf: IO[bytes], variant: int) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     assert variant in (1, 2), 'Error in test!!'
 
     buf.write(HEADER)
@@ -267,7 +267,7 @@ def test_file_2() -> None:
         prop = gg.properties[0]
 
         assert prop.name == 0, msg
-        assert len(prop.values) == 1, msg
-        assert prop.values[0].numerator == 1, msg
-        assert prop.values[0].denominator == 5, msg
+        assert len(prop.values) == 1, msg               # type: ignore
+        assert prop.values[0].numerator == 1, msg       # type: ignore
+        assert prop.values[0].denominator == 5, msg     # type: ignore
 

fatamorgana/test/test_files_texts.py

@@ -1,4 +1,4 @@
-# type: ignore
+# mypy: disable-error-code="union-attr, index"
 from typing import IO
 from io import BytesIO
 
@@ -30,8 +30,8 @@ def common_tests(layout: OasisLayout) -> None:
 
     geometry = layout.cells[0].geometry
 
-    geometry[0].layer == 1
-    geometry[0].datatype == 2
+    assert geometry[0].layer == 1
+    assert geometry[0].datatype == 2
     for ii, gg in enumerate(geometry[1:]):
         assert gg.layer == 2, f'textstring #{ii + 1}'
         assert gg.datatype == 1, f'textstring #{ii + 1}'
@@ -100,9 +100,9 @@ def common_tests(layout: OasisLayout) -> None:
 
 
 def write_file_common(buf: IO[bytes], variant: int) -> IO[bytes]:
-    '''
+    """
     Single cell with explicit name 'XYZ'
-    '''
+    """
     assert variant in (1, 2, 5, 12), 'Error in test!!'
 
     buf.write(HEADER)
@@ -461,10 +461,10 @@ def test_file_12() -> None:
 
 
 def write_file_3(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     File with one textstring with explicit id, and one with an implicit id.
     Should fail.
-    '''
+    """
     buf.write(HEADER)
 
     write_uint(buf, 6)           # TEXTSTRING record (explicit id)
@@ -494,15 +494,15 @@ def test_file_3() -> None:
 
     buf.seek(0)
     with pytest.raises(InvalidRecordError):
-        layout = OasisLayout.read(buf)
+        _layout = OasisLayout.read(buf)
 
 
 def write_file_4(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     File with a TEXT record that references a non-existent TEXTSTRING
 
     TODO add an optional check for valid references
-    '''
+    """
     buf.write(HEADER)
 
     write_uint(buf, 5)           # TEXTSTRING record (implicit id 0)
@@ -538,9 +538,9 @@ def test_file_4() -> None:
 
 
 def write_file_6(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     File with TEXT record that uses an un-filled modal for the repetition
-    '''
+    """
     buf.write(HEADER)
 
     write_uint(buf, 5)           # TEXTSTRING record (implicit id 0)
@@ -567,13 +567,13 @@ def test_file_6() -> None:
 
     buf.seek(0)
     with pytest.raises(InvalidDataError):
-        layout = OasisLayout.read(buf)
+        _layout = OasisLayout.read(buf)
 
 
 def write_file_7(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     File with TEXT record that uses an un-filled modal for the layer
-    '''
+    """
     buf.write(HEADER)
 
     write_uint(buf, 5)           # TEXTSTRING record (implicit id 0)
@@ -598,13 +598,13 @@ def test_file_7() -> None:
 
     buf.seek(0)
     with pytest.raises(InvalidDataError):
-        layout = OasisLayout.read(buf)
+        _layout = OasisLayout.read(buf)
 
 
 def write_file_8(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     File with TEXT record that uses an un-filled modal for the datatype
-    '''
+    """
     buf.write(HEADER)
 
     write_uint(buf, 5)           # TEXTSTRING record (implicit id 0)
@@ -629,13 +629,13 @@ def test_file_8() -> None:
 
     buf.seek(0)
     with pytest.raises(InvalidDataError):
-        layout = OasisLayout.read(buf)
+        _layout = OasisLayout.read(buf)
 
 
 def write_file_9(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     File with TEXT record that uses a default modal for the x coordinate
-    '''
+    """
     buf.write(HEADER)
 
     write_uint(buf, 5)           # TEXTSTRING record (implicit id 0)
@@ -669,9 +669,9 @@ def test_file_9() -> None:
 
 
 def write_file_10(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     File with TEXT record that uses a default modal for the y coordinate
-    '''
+    """
     buf.write(HEADER)
 
     write_uint(buf, 5)           # TEXTSTRING record (implicit id 0)
@@ -705,9 +705,9 @@ def test_file_10() -> None:
 
 
 def write_file_11(buf: IO[bytes]) -> IO[bytes]:
-    '''
+    """
     File with TEXT record that uses an un-filled modal for the text string
-    '''
+    """
     buf.write(HEADER)
 
     write_uint(buf, 5)           # TEXTSTRING record (implicit id 0)
@@ -732,4 +732,4 @@ def test_file_11() -> None:
 
     buf.seek(0)
     with pytest.raises(InvalidDataError):
-        layout = OasisLayout.read(buf)
+        _layout = OasisLayout.read(buf)

fatamorgana/test/test_files_trapezoids.py

@@ -1,4 +1,4 @@
-# type: ignore
+# mypy: disable-error-code="union-attr"
 from typing import IO
 from io import BytesIO
 
@@ -25,8 +25,8 @@ def base_tests(layout: OasisLayout) -> None:
 
 
 def write_file_1(buf: IO[bytes]) -> IO[bytes]:
-    '''
-    '''
+    """
+    """
     buf.write(HEADER)
 
     write_uint(buf, 14)           # CELL record (explicit)
@@ -209,7 +209,7 @@ def test_file_1() -> None:
 
         if ii in (0, 4):
             assert gg.delta_a == -20, msg
-        elif 8 <= ii:
+        elif ii >= 8:
             assert gg.delta_a == 0, msg
         else:
             assert gg.delta_a == 20, msg

pyproject.toml

@@ -34,17 +34,16 @@ keywords = [
     ]
 classifiers = [
     "Programming Language :: Python :: 3",
-    "Development Status :: 3 - Alpha",
-    "Environment :: Other Environment",
+    "Development Status :: 4 - Beta",
     "Intended Audience :: Developers",
     "Intended Audience :: Information Technology",
     "Intended Audience :: Manufacturing",
     "Intended Audience :: Science/Research",
     "License :: OSI Approved :: GNU Affero General Public License v3",
-    "Topic :: Scientific/Engineering",
     "Topic :: Scientific/Engineering :: Electronic Design Automation (EDA)",
+    "Topic :: File Formats",
     ]
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 dynamic = ["version"]
 dependencies = [
     ]
@@ -53,4 +52,38 @@ dependencies = [
 path = "fatamorgana/__init__.py"
 
 [project.optional-dependencies]
-numpy = ["numpy~=1.21"]
+numpy = ["numpy>=1.26"]
+
+
+[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
+    ]
+