
9.7 LAB: Checker for integer string Forms often allow a user to enter an integer. Write a function called check_input that takes in a string representing an integer as input parameter, and returns yes if every character is a digit 0-9, otherwise no For example, if the input is 1995, the call to check_input must return yes If the input is 42,000 or 1995!, the call to check_input must return: no Hint: use theisdigit function
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