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Practice

Indicating Invalid Values with ValueError

The ValueError exception is raised when an invalid value is used.


Situations Where ValueError Occurs​

  1. When attempting to convert a non-numeric string to a number: Trying to convert a string such as 'hello' to a number using int() or float() functions will result in an error.

  2. When attempting to convert a string representing a decimal number to an integer: Trying to convert a string such as '3.14' with int() will result in an error.

Example of ValueError Occurrence
try:
    number = int("hello")

except ValueError:
    print("Attempted to convert a non-numeric value to a number.")


try:
    number = int("3.14")

except ValueError:
    print("Attempted to convert a string with a decimal to an int() function.")

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