python local variable referenced before assignment

This error occurs when you try to access a local variable before assigning a value to it. In Python, a local variable is a variable that is defined within a function or a method.

For example, consider the following code:

def my_function():
    print(x)
    x = 10

my_function()

In this code, we are trying to print the value of `x` before assigning a value to it. This will result in a `UnboundLocalError: local variable 'x' referenced before assignment` error.

To fix this error, you need to assign a value to the variable before accessing it. Here's the corrected code:

def my_function():
    x = 10
    print(x)

my_function()

In this code, we have assigned a value of 10 to the variable `x` before accessing it, so the error is fixed.