Learn Web Development with Python

Scopes and name resolution

Do you remember when we talked about scopes and namespaces in Chapter 1, A Gentle Introduction to Python? We're going to expand on that concept now. Finally, we can talk about functions and this will make everything easier to understand. Let's start with a very simple example:

# scoping.level.1.pydef my_function():    test = 1  # this is defined in the local scope of the function    print('my_function:', test)test = 0  # this is defined in the global scopemy_function()print('global:', test)

I have defined the test name in two different places in the previous example. It is actually in two different scopes. One is the global scope (test = 0), and the other is the local scope of the my_function function (test = 1). If you ...