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Exercise 2 [Checking for Integers] Write a function is NumericalHelper() that takes a list of strings as a parameter and returns a Boolean (either True
Exercise 2 [Checking for Integers] Write a function is NumericalHelper() that takes a list of strings as a parameter and returns a Boolean (either True or False) to indicate whether or not every element in the list is an integer or not. You can check if a given string is a non-negative integer using the isdigit() string function. How can you use this to detect negative integers too? For example, >>> isNumericalHelper (["0","1","-13"]) True >>> isNumericalHelper ( ["0","1.32","22", "x"] ) False Do NOT use try/except for this
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