19 lines
776 B
Python
19 lines
776 B
Python
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def second_index(text: str, symbol: str) -> [int, None]:
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"""
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returns the second index of a symbol in a given text
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"""
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symbols = [index for index, letter in enumerate(text) if letter == symbol]
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return symbols[1] if len(symbols) > 1 else None
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if __name__ == '__main__':
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print('Example:')
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print(second_index("sims", "s"))
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# These "asserts" are used for self-checking and not for an auto-testing
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assert second_index("sims", "s") == 3, "First"
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assert second_index("find the river", "e") == 12, "Second"
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assert second_index("hi", " ") is None, "Third"
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assert second_index("hi mayor", " ") is None, "Fourth"
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assert second_index("hi mr Mayor", " ") == 5, "Fifth"
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print('You are awesome! All tests are done! Go Check it!')
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