Help Defining Global Names

Question

My Code:

def A():
    a = 'A'

    print a

    return

def B():

    print a + ' in B'

    return

When B() is entered into the interpeter I get

Traceback (most recent call last):
  File "<interactive input>", line 1, in <module>
  File "<module1>", line 9, in B
NameError: global name 'a' is not defined

How should I go about defining a? I want the end result to be 'A in B', when B() is entered into the interpreter

edit: I'd like to keep the definition of a within A() if possible.

Answer 1

i'm pretty new to Python and you might want to take thes following with a grain of salt, but did you consider to have your variable a and the functions A() and B() as members of a class?

class myClass(object):

    def __init__(self):
        self.a = ''

    def A(self):
        self.a = 'A'
        print self.a

    def B(self):
        print self.a + ' in B'


def main():
    stuff = myClass()
    stuff.A()
    stuff.B()

if __name__ == '__main__':
    main()

When i save the code above in a file and run it, it seems to work as expected.