@ -130,7 +130,7 @@ def writefile(
with tmpfile(path) as base_stream:
streams: Tuple[Any, ...] = (base_stream,)
if path.suffix == '.gz':
gz_stream = cast(IO[bytes], gzip.GzipFile(filename='', mtime=0, fileobj=base_stream))
gz_stream = cast(IO[bytes], gzip.GzipFile(filename='', mtime=0, fileobj=base_stream, mode='wb'))
streams = (gz_stream,) + streams
else:
gz_stream = base_stream
@ -145,7 +145,7 @@ def writefile(
stream = cast(IO[bytes], gzip.GzipFile(filename='', mtime=0, fileobj=base_stream))
stream = cast(IO[bytes], gzip.GzipFile(filename='', mtime=0, fileobj=base_stream, mode='wb'))
streams = (stream,) + streams
stream = base_stream
@ -190,7 +190,7 @@ def writefile(
streams += (stream,)