Python circular class inclusion

thegeneralguy

Suppose I have a class setup like this:

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class Foo:

      Bar b

class Bar:

      Foo f

How can I make this work, preferably in one file?

micmast

I presume you mean something like this:

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class Foo():
 
    def __init__(self):

        b = Bar()

        b.hello()
 
class Bar():
 
    def hello(self):

        print "hello"
 
f = Foo()

$> python test.py
hello

To others, how do you create those python code blocks? I have been trying but I cannot figure it out :s

elcron

I presume you mean something like this:

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class Foo():

    def __init__(self):

        b = Bar()

        b.hello()

class Bar():

    def hello(self):

        print "hello"

f = Foo()

$> python test.py
hello

To others, how do you create those python code blocks? I have been trying but I cannot figure it out :s

Just start the block with [code=python]But I think he means something like

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class Foo():

    def __init__(self):

        self.b = Bar()
 
class Bar():

    def __init__(self):

        self.f = Foo()
 
f = Foo()

A fix would be something like

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class Foo():

    def __init__(self, bar=None):

        self.b = bar

        if bar == None:

            self.b = Bar(self)
 
class Bar():

    def __init__(self, foo=None):

        self.f = foo

        if bar == None:

            self.f = Foo(self)
 
f = Foo()

thegeneralguy

yes, sorry, I was thinking java when I wrote that. Thanks!

thegeneralguy

yes, sorry, I was thinking java when I wrote that. Thanks!

Python circular class inclusion

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