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2009/5/13 -I think you are using 'global' incorrectly. See Python reference. You should declare variable without global and then inside the function ...
2023/1/24 -The rule is that if you assign to a name in a function, the name is assumed to be local to that function unless you say otherwise with ...
2026/10/1 -UnboundLocalError occurs when Python tries to access a local variable before that variable has been assigned a value.
2023/9/27 -This error is a type of UnboundLocalError , which is raised when a local variable is referenced before it has been assigned in the local scope.
2022/8/31 -To assign to global variables from within functions, you need to mark them explicitly by using the global keyword. So in your case, put the line ...
2026/7/3 -Because index is defined globally as well as inside the foo() function, Python throws an exception if you try to use the variable inside foo ...
Looks like it is becasue you cannot modify a global variable (on_off) inside a function without declaring it as global. That may be the solution but the cause ...
UnboundLocalError local variable referenced before assignment #UnboundLocalError #localvariablereferencedbeforeassignment #Python ...
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2024/4/8 -The Python "UnboundLocalError: Local variable referenced before assignment" occurs when we reference a local variable before assigning a value ...
2021/11/19 -When a variable is assigned a value within a function, the variable is local by default. Otherwise, we would often change the values of global ...