Traceback is followed by "the stack" (ie, the state of nested function calls...). One end of the stack is where your code has crashed (which is why providing the whole traceback when you ask for help is a good idea).
The "ValueError" is an usual answer in Python to an invalid argument in a function call. Given the message it is likely the strptime() call telling you that it cannot parse its input with the format you provided.
The "ValueError" is an usual answer in Python to an invalid argument in a function call. Given the message it is likely the strptime() call telling you that it cannot parse its input with the format you provided.
Unless noted otherwise, code in my posts should be understood as "coding suggestions", and its use may require more neurones than the two necessary for Ctrl-C/Ctrl-V.
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