urllib.parse.quote(string, safe='/', encoding=None, errors=None)

urllib.parse.unquote(string, encoding='utf-8', errors='replace') 

test = "微信公众账号比特量化"
print(test)
new = urllib.parse.quote(test)
print(new)
print(urllib.parse.unquote(new))

C:\Users\btcquant>python E:\bitcoin\wxapi.py
微信公众账号比特量化
%E5%BE%AE%E4%BF%A1%E5%85%AC%E4%BC%97%E8%B4%A6%E5%8F%B7%E6%AF%94%E7%89%B9%E9%87%8F%E5%8C%96
微信公众账号比特量化