Really, the title says it all. Is there any way to compile all the instances of a class into a list, or other such data structure?
FreezeBlink
0
Light Poster
Recommended Answers
Jump to PostI have done this on occasion. The easiest way to do this is have your __init__() routine append self to a list. If it's not "your" class I suppose you could override the __init__ method of the class.
Fortunately I never had to worry about deletes...
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BearofNH
104
Posting Whiz
I have done this on occasion. The easiest way to do this is have your __init__() routine append self to a list. If it's not "your" class I suppose you could override the __init__ method of the class.
Fortunately I never had to worry about deletes...
FreezeBlink
0
Light Poster
Sounds like that should work. Thanks!
tenuki
0
Newbie Poster
Probably delete could be addressed by using WeakRefs...
Gribouillis
1,391
Programming Explorer
Team Colleague
Probably delete could be addressed by using WeakRefs...
Indeed, you can store the instances in a weakref.WeakValueDictionary for example
from weakref import WeakValueDictionary
class A(object):
instances = WeakValueDictionary()
def __init__(self):
self.instances[id(self)] = selfInstances disappear magically from the dictionary when their reference counts falls to 0.
Note that it's better to start a new thread than reviving an old one. The OP probably solved this problem a long time ago.
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