How to share variables between modules?

[snakyjake]

How do I share a module variable with another class module?
Ideally I want file2.py to inherit the variables+value from file1.py.

When I import a module, I want access to the variables (by reference), not a copy.

# file1.py
import file2

var1 = None

def func1():
	global var1
	var1 = 'test'

if __name__ == "__main__":
	func1()
	print var1  # prove variable was modified.
	f2 = file2.ClassA()
	f2.func3()

# file2.py
import file1

class ClassA:
	def func3(self):
		print file1.var1

Results:
Test
None