SyntaxWarning/DeprecatedWarnings invalid escape sequence

[Taragolis]

At least latest version oss2 raise this warnings, but I guess it might affect older ones

oss2/api.py:497: DeprecationWarning: invalid escape sequence \&
oss2/utils.py:156: DeprecationWarning: invalid escape sequence \w

aliyun-oss-python-sdk/oss2/api.py

Line 502 in a03eafe

r'http://your-bucket.oss-cn-hangzhou.aliyuncs.com/logo.jpg?OSSAccessKeyId=YourAccessKeyId\&Expires=1447178011&Signature=UJfeJgvcypWq6Q%2Bm3IJcSHbvSak%3D'

aliyun-oss-python-sdk/oss2/utils.py

Line 156 in a03eafe

pattern = '^([a-zA-Z]+://)?[\w.-]+(:\d+)?$'

Since Python 3.12 this kind of warning become SyntaxWarning, see: python/cpython#98401, which are not ignored by default as DeprecatedWarnings it would be nice if regexp/docstrings will wrap into the raw strings