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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 _dirmatch(path, matchwith):
 """Check if path is within matchwith's tree. True True True False False """

    matchlen = len(matchwith)
    if (path.startswith(matchwith)
        and path[matchlen:matchlen + 1] in [os.sep, '']):
        return True
    return False