Fix Python UnboundLocalError local variable 'x' referenced before assignment (2025 Guide)
Fix Python UnboundLocalError: local variable 'x' referenced before assignment (2025 Guide) Fix Python UnboundLocalError: local variable 'x' referenced before assignment (2025 Guide) Posted on: March 22, 2025 Encountered an "UnboundLocalError: local variable 'x' referenced before assignment" in Python? This error occurs when a variable is used in a function before being assigned a value locally. Let’s fix it fast in this 2025 guide! What Causes "UnboundLocalError: local variable 'x' referenced before assignment"? This error happens due to Python’s scope rules (LEGB: Local, Enclosing, Global, Built-in). If a variable is assigned within a function, Python treats it as local, but referencing it before assignment triggers the error. Common causes include: Scope Confusion : Using a global variabl...