[Solved] How to use global variables in Python?

Question

The declaration of your globals is wrong. You declare your globals as a description of how they should be calculated. That will just not work. The global keyword in python is used to bring a variable in the local scope. Then you can alter it. Like this:

def updateGlobals():
    global global_variable
    global_variable = "new value"

However, I would put them your globals in a class and add functions that will update the variables accordingly. I think people call this the singleton design pattern, but maybe you don’t need this in your little project.

Accepted Answer

The declaration of your globals is wrong. You declare your globals as a description of how they should be calculated. That will just not work. The global keyword in python is used to bring a variable in the local scope. Then you can alter it. Like this:

def updateGlobals():
    global global_variable
    global_variable = "new value"

However, I would put them your globals in a class and add functions that will update the variables accordingly. I think people call this the singleton design pattern, but maybe you don’t need this in your little project.