Scope of Variables in Python 3
All variables in a program may not be
accessible at all locations in that program. This depends on where you have declared a
variable.
The scope of a variable determines the
portion of the program where you can access a particular identifier.
There are two basic scopes of variables in
Python-
· Global variables
· Local variables
Global vs. Local variables
Variables that are defined inside a
function body have a local scope, and those defined outside have a global scope. This means
that local variables can be accessed only inside the function in which they are
declared, whereas global variables can be accessed throughout the program body
by all functions. When you call a function, the variables declared inside it
are brought into scope.
Following is a simple example-
and the output is :
