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GeezerVison is showing github.com — python-patterns/prototype.py at master · Biatrissa/python-patterns Expand file tree/ Copy pathprototype.pyMore file actions 35 lines (26 loc) · 729 Bytes / Copy pathprototype.pyFile metadata and controls35 lines (26 loc) · 729 Bytes 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 from copy import deepcopy class Prototype: def __init__(self): self._objs = {} def registerObject(self, name, obj): """ register an object. """ self._objs[name] = obj def unregisterObject(self, name): """unregister an object""" del self._objs[name] def clone(self, name, **attr): """clone a registered object and add/replace attr""" obj = deepcopy(self._objs[name]) obj.__dict__.update(attr) return obj if __name__ == '__main__': class A: pass a = A() prototype = Prototype() prototype.registerObject("a", a) b = prototype.clone("a", a=1, b=2, c=3) print(a) print(b.a, b.b, b.c) |
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