Python Instantiate Class Within Class Definition

Question

I am attempting to add a variable to a class that holds instances to the class. The following is a shortened version of my code.

class Classy :
    def __in         


        

Answer 1

It seems to me that you want to obtain that:

class Classy :
    CLASSIES = []
    def __init__(self) :
        self.hi = "HI!"
        Classy.CLASSIES.append(self)

for i in xrange(4):
    Classy()

for x in  Classy.CLASSIES:
    print x

result

<__main__.Classy instance at 0x011DF3F0>
<__main__.Classy instance at 0x011DF440>
<__main__.Classy instance at 0x011DF418>
<__main__.Classy instance at 0x011DF2B0>

EDIT

Note that with the code of Lattyware:

class Classy :
    CLASSIES = []
    idC = id(CLASSIES)
    def __init__(self) :
        self.hi = "HI!"
        #Classy.CLASSIES.append(self)


Classy.CLASSIES = [Classy() for _ in xrange(0,4)]

print Classy.idC
print id(Classy.CLASSIES)
print 'Classy.idC==id(Classy.CLASSIES) :',Classy.idC==id(Classy.CLASSIES)

result

18713576
10755928
Classy.idC==id(Classy.CLASSIES) : False

While with the for loop of delnan'code, it doesn't appear.

However it's easy to correct:
writing
Classy.CLASSIES[:] = [Classy() for _ in xrange(0,4)]
or
Classy.CLASSIES.extend(Classy() for _ in xrange(0,4))
instead of
Classy.CLASSIES = [Classy() for _ in xrange(0,4)]
it depends of what is desired.

EDIT 2

Methods may reference global names in the same way as ordinary functions. The global scope associated with a method is the module containing its definition. (A class is never used as a global scope.)

http://docs.python.org/2/tutorial/classes.html#class-definition-syntax

A class has a namespace implemented by a dictionary object. Class attribute references are translated to lookups in this dictionary, e.g., C.x is translated to C.__dict__["x"]

http://docs.python.org/2/reference/datamodel.html#new-style-and-classic-classes

class Classy :
    CLASSIES = []

print '"CLASSIES" in globals()',"CLASSIES" in globals()
print '"CLASSIES" in Classy.__dict__ ==',"CLASSIES" in Classy.__dict__

result

"CLASSIES" in globals() False
"CLASSIES" in Classy.__dict__ == True

Delnan, how will you continue to pretend that CLASSIES is global ??
Did I misunderstood something in your debate with Lattyware ?