Question

I have a two-file setup:

File 1:

global test
test = 1
import FooBar

FooBar()

File 2 (FoorBar.py):

class FooBar:
    def Foo:
       print test

Essentially, I want to pass the variable test from File 1 to File 2. With the above code I get the exception:

NameError: global name not defined (Python)

Answer 1

You could try a different approach:

File 1

from FooBar import FooBar
FooBar.test = 1

foo_bar = FooBar()
foo_bar.Foo()

File 2

class FooBar:
    test = None

    def Foo( self ):
        print self.test

or

File 1

from FooBar import FooBar
foo_bar = FooBar( 1 )
foo_bar.Foo()

File 2

class FooBar:
    def __init__( self, test ):
        self.test = test

    def Foo( self ):
        print self.test 

The difference is that in the first case the “test” variable would be static, i.e. the same for all instances of FooBar, in the second case it would be local to an instance (so different for all instances).