I have two files:
lib.py
global var
def test():
var = "Hello!"
return
test.py
from lib import *
test()
print(var)
But despite having them in the same folder, when I run test.py, I get the following error:
Traceback (most recent call last):
File "C:\Test\test.py", line 5, in <module>
print(var)
NameError: name 'var' is not defined
How can I access this variable in a function in another file?
You need to declare the variable as global in the scope which it is used, which in this case is the function test():
def test():
global var
var = "Hello!"
Note that the final return is not necessary, since it is implicit at the end of a function. Also, var is declared in the global scope of the module, so it won't be imported automatically by from lib import * since it's created after the module has been imported.
Returning var from the function is probably a better solution to use across modules:
def test():
var = "Hello!"
return var
var = test()
print(var) # Hello!
I recommend the following:
lib.py
def test():
return "Hello!"
test.py
from lib import *
var = test()
print(var)
screen = pygame.display.set_mode((width, height)) And I am trying to access this by utilising it in another file: pygame.gfxdraw.aacircle(screen, 175, 130, 60, red_on) As such, am I correct in thinking that I could not use the return functionality to achieve this?