Python: How do I pass variables between class instances or get the caller?

Question

class foo():
  def __init__(self)
    self.var1 = 1

class bar():
  def __init__(self):
    print \"foo var1\"

f = foo()
b = bar()

In foo, I am do

Answer 1

No one has provided a code example showing a way to do this without changing the init arguments. You could simply use a variable in the outer scope that defines the two classes. This won't work if one class is defined in a separate source file from the other however.

var1 = None
class foo():
  def __init__(self)
    self.var1 = var1 = 1

class bar():
  def __init__(self):
    print var1

f = foo()
b = bar()