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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 to_posix_path(path):
 """ Converts Windows path to Posix path while stripping drives letters and network server slashes. Usage:: u'/Users/JohnDoe/Documents' :param path: Windows path. :type path: unicode :return: Path converted to Posix path. :rtype: unicode """


    posix_path = posixpath.normpath(to_forward_slashes(re.sub(r"[a-zA-Z]:\\|\\\\", "/", os.path.normpath(path))))
    LOGGER.debug("> Stripped converted to Posix path: '{0}'.".format(posix_path))
    return posix_path