Functions - Tom Kleen

Write a python function: findAllSub (string, sub_string) that finds and prints all occurrences of sub_string in string. Function prints the indices of the beginning of sub_string in string. For example, if the input is: string = ‘aatcctattctatg’ and sub_string = ‘at’, the function prints: the ‘at’ occurs at position 1 ................
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