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2010/4/9 -The Explanation. Whenever a value is assigned to a variable inside a function, python considers that variable a local variable of that function.
2025/7/23 -This error occurs when a local variable is referenced before it has been assigned a value within a function or method. This error typically ...
2023/6/21 -When you assign to a variable in a function, Python assumes that the variable is local to that function unless it's declared in the function ...
2020/1/13 -In Python, variables that are only referenced inside a function are implicitly global. If a variable is assigned a value anywhere within the ...
2022/1/29 -On line 11, I get UnboundLocalError: local variable 'isTreeBalanced' referenced before assignment. I am trying to access isTreeBalanced ...
2026/10/1 -UnboundLocalError occurs when Python tries to access a local variable before that variable has been assigned a value.
In this video, we tackle a common issue that many Python developers encounter: the 'Local Variable Might Be Referenced Before Assignment' ...
YouTubeThe Debug Zone
2024/4/8 -If you have a nested function and are trying to assign a value to the local variables from the outer function, use the nonlocal keyword.
2025/4/10 -The problem is I am now getting an error 'UnboundLocalError: local variable 'var' referenced before assignment'. Below is a side by side ...
2023/9/27 -This is because the variable x is referenced in the print(x) statement before it is assigned a value in the local scope of the foo function.