User FAQs

1) What happens when you try to use a variable before the variable has been assigned a value?
A NameError error occurs

2) What is the difference between global and local scope?
A variable created inside a function belongs to the local scope of that function, and can only be used inside that function.
A variable created in the main body of the Python code is a global variable and belongs to the global scope.
Global variables are available from within any scope, global and local.
Global Variables: Variables declared outside a function or in a global space are called global variables. These variables can be accessed by any function in the program.
Local Variables: Any variable declared inside a function is known as a local variable. This variable is present in the local space and not in the global space.