UnicodeDecodeError

[guyskk]

UnicodeDecodeError When filename is"article/python2编码问题.md" or has unicode char

dulwich/index.py(423) build_index_from_tree()
-> full_path = os.path.join(prefix, entry.path)
(Pdb) pp prefix
u'E:/work/py/kkblog/article_repo/\u54c8\u54c8\\guyskk\\webhooks_test'
(Pdb) pp entry.path
'article/python2\xe7\xbc\x96\xe7\xa0\x81\xe9\x97\xae\xe9\xa2\x98.md'
(Pdb) os.path.join(prefix, entry.path)
*** UnicodeDecodeError: 'ascii' codec can't decode byte 0xe7 in position 16: ordinal not in range(128)

My script:

# coding:utf-8

def pull_or_clone(dest, repo_url):

    from giturlparse import parse
    from gittle import Gittle
    import os
    p = parse(repo_url)
    user_repo_path = os.path.join(dest, p.owner, p.repo)
    if os.path.exists(user_repo_path):
        repo = Gittle(user_repo_path, origin_uri=repo_url)
        repo.pull()
    else:
        repo = Gittle.clone(repo_url, user_repo_path)

if __name__ == '__main__':
    dest = u"E:/work/py/kkblog/article_repo/哈哈"
    repo_url = u"https://github.com/guyskk/webhooks_test.git"
    pull_or_clone(dest, repo_url)