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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 get_rel_sciobj_file_path(pid):
 """Get the relative local path to the file holding an object's bytes. - The path is relative to settings.OBJECT_STORE_PATH - There is a one-to-one mapping between pid and path - The path is based on a SHA1 hash. It's now possible to craft SHA1 collisions, but it's so unlikely that we ignore it for now - The path may or may not exist (yet). """

    hash_str = hashlib.sha1(pid.encode('utf-8')).hexdigest()
    return os.path.join(hash_str[:2], hash_str[2:4], hash_str)