Writing a class inside a function in Python

I am trying to write a class inside a function... something like the following:

def func(**args):
   class BindArgs(object):
       foo = args['foo']
       print 'foo is ', foo
       def __init__(self,args):
          print " hello, I am here"

f = func(foo=2)

I was hoping that print will be executed.. but the init block is not being executed... though print 'foo is ' stub runs... What am I missing?

I am trying to understand, how does this module works (https://github.com/tweepy/tweepy/blob/master/tweepy/binder.py)?

You just need to return an instance of the class...

def func(**args):
   class BindArgs(object):
       foo = args['foo']
       print 'foo is ', foo
       def __init__(self,args):
          print " hello i am here"
   return BindArgs(args) #return an instance of the class

f = func(foo=3)

If you wanted to call it later like in the example from the comments, you could just do

def func(**args):
   class BindArgs(object):
       foo = args['foo']
       print 'foo is ', foo
       def __init__(self,args):
          print " hello i am here"
   return BindArgs

f = func(foo=3)
f(args="yellow")

Writing a class inside a function in Python

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