Charles Krug a écrit :
> List:
>
> I have this:
>
> # classC.py
>
> class C(object): pass
>
> class D(C): pass
>
> class E(C): pass
>
> def CSubclasses():
> for name in dir(): pass
>
> I'm trying to create a list of all of C's subclasses:
>
> import classC
>
> print C
> aList = []
> for name in dir(classC):
> print name,
> try:
> if issubclass(classC.__dict__[name], C):
> print classC.__dict__[name]
> else:
> print
> except TypeError:
> print
>
Where is C defined ?
>>> import classC
does not define the name C in the current scope ... thus, you should write :
for name in dir(classC):
print name,
try:
if issubclass(classC.__dict__[name], classC.C):
print classC.__dict__[name]
else:
print
except TypeError:
print
and it gives :
C <class 'test_subclass.C'>
CSubclasses
D <class 'test_subclass.D'>
E <class 'test_subclass.E'>
__builtins__
__doc__
__file__
__name__
... which is exactly what you want !
Pierre
> Which gives me this:
>
> <class '__main__.C'>
> C
> CSubclasses
> D
> E
> __builtins__
> __doc__
> __file__
> __name__
>
> However when I do this from the command line:
>
>
>>>>issubclass(D,C)
>
> True
>
> but
>
>
>>>>issubclass(classC.__dict__['D'], C)
>
> False
>
> So my approach is flawed.
>
> The end result I'm after is an automatically generated dictionary
> containing instaces of the subclasses keyed by the subclass names:
>
> {'D':D(), 'E':E(), . . . }
>
> I can see the information I need in the module's __dict__ and by using
> the dir() method, but I'm not having much success extracting it.
>
>
>
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