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15 lines
522 B
Python
15 lines
522 B
Python
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def convert_to_lower_and_upper_set(inputs: list[str] | set[str]) -> set[str]:
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"""
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Convert a list or set of strings to a set containing both lower and upper case versions of each string.
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Args:
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inputs (list[str] | set[str]): A list or set of strings to be converted.
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Returns:
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set[str]: A set containing both lower and upper case versions of each string.
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"""
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if not inputs:
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return set()
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else:
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return {case for s in inputs if s for case in (s.lower(), s.upper())}
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