global
The global
keyword creates or references a global variable that can be updated within the scope of a function or class.
Syntax
variable = initial_value
def function_name:
global variable
# ...
class ClassName:
global variable
def example_method:
global variable
# ...
The snippet above showcases the various places that a variable
can be referenced with the global
keyword.
Note: The variable
must not be defined and set within the function/class scope before being referenced with the global
keyword. Otherwise, an error will occur.
Codebyte Example
The following is an example of the global
keyword being used in an increment()
function: