python post请求

import json
import pprint
from urllib import request, parse


def fetch_page():
    username = 'xxxxxxxxx'
    password = 'yyyyyyyyy'

    #参数需要进行url转码
    post_data = parse.urlencode([
        ('username', username),
        ('password', password),
    ])

    #构造Request对象
    http_request = request.Request('http://httpbin.org/post')
    http_request.add_header('Refer', 'yyyyyyyyy')
    http_request.data = post_data.encode('utf-8')

    with request.urlopen(http_request) as http_response:
        content = http_response.read()
        result = json.loads(content.decode('utf-8'))
        pprint.pprint(result)


def main():
    fetch_page()


if __name__ == '__main__':
    main()

from urllib import parse


username = 'hhhhhhhh'
password = 'fhsfgu@#$%^&*'

post_data = parse.urlencode([
    ('username', username),
    ('password', password),
])

print(post_data)

username=hhhhhhhh&password=fhsfgu%40%23%24%25%5E%26%2A