diff options
Diffstat (limited to 'gerbonara/graphic_objects.py')
| -rw-r--r-- | gerbonara/graphic_objects.py | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/gerbonara/graphic_objects.py b/gerbonara/graphic_objects.py index 3136b39..35c08f3 100644 --- a/gerbonara/graphic_objects.py +++ b/gerbonara/graphic_objects.py @@ -18,7 +18,7 @@ import math import copy -from dataclasses import dataclass, KW_ONLY, astuple, replace, field, fields +from dataclasses import dataclass, astuple, replace, field, fields from .utils import MM, InterpMode, to_unit, rotate_point from . import graphic_primitives as gp @@ -45,6 +45,8 @@ class GraphicObject: # hackety hack: Work around python < 3.10 not having dataclasses.KW_ONLY. Once we drop python 3.8 and 3.9, we can # get rid of this, just set these as normal fields, and decorate GraphicObject with @dataclass. + # + # See also: apertures.py, graphic_primitives.py def __init_subclass__(cls): #: bool representing the *color* of this feature: whether this is a *dark* or *clear* feature. Clear and dark are #: meant in the sense that they are used in the Gerber spec and refer to whether the transparency film that this @@ -61,7 +63,11 @@ class GraphicObject: #: which are stored in the :py:class:`.GerberFile` object instead. cls.attrs = field(default_factory=dict) - cls.__annotations__.update({'polarity_dark' : bool, 'unit' : str, 'attrs': dict}) + d = {'polarity_dark' : bool, 'unit' : str, 'attrs': dict} + if hasattr(cls, '__annotations__'): + cls.__annotations__.update(d) + else: + cls.__annotations__ = d def converted(self, unit): |