|
16 | 16 | importnumpyasnp |
17 | 17 |
|
18 | 18 | importmatplotlibasmpl |
| 19 | + |
19 | 20 | from .import_api,_path |
20 | 21 | from .cbookimport_to_unmasked_float_array,simple_linear_interpolation |
21 | 22 | from .bezierimportBezierSegment |
22 | 23 |
|
23 | 24 |
|
24 | | -classPath: |
| 25 | +class_HideDeepcopyMeta(type): |
| 26 | +"""Metaclass that allows conditionally hiding the __deepcopy__ method. |
| 27 | +
|
| 28 | + Set __hide_deepcopy__ to True to hide the __deepcopy__ method, |
| 29 | + which will then be looked up in the usual method resolution order. |
| 30 | + """ |
| 31 | + |
| 32 | +def__new__(cls,name,bases,namespace): |
| 33 | +orig_ga=namespace.get("__getattribute__")orobject.__getattribute__ |
| 34 | + |
| 35 | +def__getattribute__(self,attr_name): |
| 36 | +ifattr_name=="__deepcopy__"andorig_ga(self,"__hide_deepcopy__"): |
| 37 | +forbaseintype(self).__mro__[1:]: |
| 38 | +ifattr_nameinbase.__dict__: |
| 39 | +method=base.__dict__[attr_name] |
| 40 | +returnmethod.__get__(self,type(self)) |
| 41 | +raiseAttributeError( |
| 42 | +f"'{type(self).__name__}' object has no attribute '{attr_name}'" |
| 43 | + ) |
| 44 | +returnorig_ga(self,attr_name) |
| 45 | + |
| 46 | +namespace["__getattribute__"]=__getattribute__ |
| 47 | +returnsuper().__new__(cls,name,bases,namespace) |
| 48 | + |
| 49 | + |
| 50 | +classPath(metaclass=_HideDeepcopyMeta): |
25 | 51 | """ |
26 | 52 | A series of possibly disconnected, possibly closed, line and curve |
27 | 53 | segments. |
@@ -281,9 +307,13 @@ def __deepcopy__(self, memo=None): |
281 | 307 | readonly, even if the source `Path` is. |
282 | 308 | """ |
283 | 309 | # Deepcopying arrays (vertices, codes) strips the writeable=False flag. |
284 | | -p=copy.deepcopy(super(),memo) |
285 | | -p._readonly=False |
286 | | -returnp |
| 310 | +self.__hide_deepcopy__=True |
| 311 | +try: |
| 312 | +p=copy.deepcopy(self,memo) |
| 313 | +p._readonly=False |
| 314 | +returnp |
| 315 | +finally: |
| 316 | +self.__hide_deepcopy__=False |
287 | 317 |
|
288 | 318 | deepcopy=__deepcopy__ |
289 | 319 |
|
|