summaryrefslogtreecommitdiff
path: root/gerbonara/apertures.py
diff options
context:
space:
mode:
authorjaseg <git@jaseg.de>2022-06-21 12:26:38 +0200
committerjaseg <git@jaseg.de>2022-06-21 12:26:38 +0200
commit218f9d9b1f0c28969a339beead4a059a46f728dc (patch)
tree20a97044045bc143ff10082b61183495c913b38b /gerbonara/apertures.py
parentee233317f1c5541a302c4f062b9957ae7ea335c2 (diff)
downloadgerbonara-218f9d9b1f0c28969a339beead4a059a46f728dc.tar.gz
gerbonara-218f9d9b1f0c28969a339beead4a059a46f728dc.tar.bz2
gerbonara-218f9d9b1f0c28969a339beead4a059a46f728dc.zip
Make gerbonara python3.8 compatible.v0.11.0
Diffstat (limited to 'gerbonara/apertures.py')
-rw-r--r--gerbonara/apertures.py32
1 files changed, 21 insertions, 11 deletions
diff --git a/gerbonara/apertures.py b/gerbonara/apertures.py
index 33b78df..0a4bf37 100644
--- a/gerbonara/apertures.py
+++ b/gerbonara/apertures.py
@@ -17,7 +17,7 @@
#
import math
-from dataclasses import dataclass, replace, field, fields, InitVar, KW_ONLY
+from dataclasses import dataclass, replace, field, fields, InitVar
from .aperture_macros.parse import GenericMacros
from .utils import MM, Inch
@@ -60,16 +60,26 @@ class Length:
@dataclass
class Aperture:
""" Base class for all apertures. """
- _ : KW_ONLY
- #: :py:class:`gerbonara.utils.LengthUnit` used for all length fields of this aperture.
- unit : str = None
- #: GerberX2 attributes of this aperture. Note that this will only contain aperture attributes, not file attributes.
- #: File attributes are stored in the :py:attr:`~.GerberFile.attrs` of the :py:class:`.GerberFile`.
- attrs : dict = field(default_factory=dict)
- #: Aperture index this aperture had when it was read from the Gerber file. This field is purely informational since
- #: apertures are de-duplicated and re-numbered when writing a Gerber file. For `D10`, this field would be `10`. When
- #: you programmatically create a new aperture, you do not have to set this.
- original_number : int = None
+
+ # hackety hack: Work around python < 3.10 not having dataclasses.KW_ONLY.
+ #
+ # For details, refer to graphic_objects.py
+ def __init_subclass__(cls):
+ #: :py:class:`gerbonara.utils.LengthUnit` used for all length fields of this aperture.
+ cls.unit = None
+ #: GerberX2 attributes of this aperture. Note that this will only contain aperture attributes, not file attributes.
+ #: File attributes are stored in the :py:attr:`~.GerberFile.attrs` of the :py:class:`.GerberFile`.
+ cls.attrs = field(default_factory=dict)
+ #: Aperture index this aperture had when it was read from the Gerber file. This field is purely informational since
+ #: apertures are de-duplicated and re-numbered when writing a Gerber file. For `D10`, this field would be `10`. When
+ #: you programmatically create a new aperture, you do not have to set this.
+ cls.original_number = None
+
+ d = {'unit': str, 'attrs': dict, 'original_number': int}
+ if hasattr(cls, '__annotations__'):
+ cls.__annotations__.update(d)
+ else:
+ cls.__annotations__ = d
@property
def hole_shape(self):