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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _generate_input(options):
 """First send strings from any given file, one string per line, sends any strings provided on the command line. :param options: ArgumentParser or equivalent to provide options.input and options.strings. :return: string """

    if options.input:
        fp = open(options.input) if options.input != "-" else sys.stdin
        for string in fp.readlines():
            yield string
    if options.strings:
        for string in options.strings:
            yield string