How to make a local variable a global python

Learn how to make a local variable global in Python with a step-by-step example.

Making a Local Variable Global in Python

Python is a high-level programming language that enables users to create dynamic applications. It is versatile and can be used for a wide range of applications, from web development to mobile development. But when programming in Python, variables can sometimes be tricky. A variable declared within a function is a local variable. This means that it will only exist within the function and will not be available outside of the function. But, if you need to access the variable outside of the function, you can make it a global variable.

To make a local variable a global variable in Python, you must first declare it as a global variable in the function. To do this, you use the global keyword followed by the variable name. For example:

def my_function():
    global my_variable
    my_variable = "This is a global variable"

This declares the variable my_variable as a global variable. Once declared as a global variable, the variable is accessible from anywhere in the program. You can access it from outside of the function as well as from inside the function.

Here is an example of how to use a global variable in Python:

# Declare the variable as global
def my_function():
    global my_variable
    my_variable = "This is a global variable"

# Use the variable
def my_other_function():
    print(my_variable)

# Call the functions
my_function()
my_other_function()

# Output: "This is a global variable"

In this example, we first declare the variable my_variable as a global variable in the my_function() function. Then, we access the variable from outside of the function in the my_other_function() function. When we call both functions, the output is "This is a global variable".

By using the global keyword, you can make a local variable a global variable in Python. This allows you to access the variable from any part of your program.