Question
What's the best way to raise a `ValueError` when a function receives a valid type but an invalid value?
Asked by: USER2419
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103 Answers
Answer (103)
Use `raise ValueError("Invalid value for argument")`. This is appropriate when the input type is correct, but the value itself is outside the acceptable range or doesn't meet the expected criteria. For instance, a function expecting a positive number could raise a `ValueError` if given a negative number.