url的param与dict转换

urllib.parse.urlencode

urlencode

from urllib import parse
from urllib.request import urlopen
from urllib import request

values = {'username': 'xxxxxxxxx@qq.com', 'password': 'XXXX'}
data = parse.urlencode(values)  # 提交类型不能为str，需要为byte类型
print(data,type(data))  # 'username=xxxxxxxxx%40qq.com&password=XXXX' <class 'str'>

url = 'https://passport.csdn.net/account/login?from=http://my.csdn.net/my/mycsdn'
request = request.Request(url, data.encode("utf-8"))  # 提交类型不能为str，需要为byte类型
response = urlopen(request)
print(response.read().decode())

from urllib.parse import unquote

from urllib.parse import unquote
from urllib.parse import urlencode

d = {"a":1,"b":[2,"bbb","中国"],"c":"和平"}
d_urlencode = urlencode(d)
d1_urlencode = urlencode(d,encoding="gbk")
print(d_urlencode)  # a=1&b=%5B2%2C+%27bbb%27%2C+%27%E4%B8%AD%E5%9B%BD%27%5D&c=%E5%92%8C%E5%B9%B3
print(d1_urlencode)  # a=1&b=%5B2%2C+%27bbb%27%2C+%27%D6%D0%B9%FA%27%5D&c=%BA%CD%C6%BD

# 解码
d_unquote = unquote(d_urlencode)
d1_unquote = unquote(d1_urlencode)
print(d_unquote)  # a=1&b=[2,+'bbb',+'中国']&c=和平
print(d1_unquote)  # a=1&b=[2,+'bbb',+'�й�']&c=��ƽ
d2_unquote = unquote(d1_urlencode,encoding="gbk")  # 默认解码是utf-8
print(d2_unquote)  # a=1&b=[2,+'bbb',+'中国']&c=和平

url转换为dict

from urllib import parse
url = "https://search.jd.com/search?coupon_batch=112280806&coupon_id=46034227333&qrst=1&rt=1&stop=1&vt=2&scc=1&psort=1&wtype=1&ev=exbrand_%E9%AD%85%E6%97%8F%EF%BC%88MEIZU%EF%BC%89%5Eexprice_0-1000%5E&uc=0&stock=0#J_searchWrap"
res = dict(parse.parse_qsl(url))
print(res)  # {'https://search.jd.com/search?coupon_batch': '112280806', 'coupon_id': '46034227333', 'qrst': '1', 'rt': '1', 'stop': '1', 'vt': '2', 'scc': '1', 'psort': '1', 'wtype': '1', 'ev': 'exbrand_魅族（MEIZU）^exprice_0-1000^', 'uc': '0', 'stock': '0#J_searchWrap'}

res = dict(parse.parse_qsl(url.partition("?")[2]))
print(res)  # {'coupon_batch': '112280806', 'coupon_id': '46034227333', 'qrst': '1', 'rt': '1', 'stop': '1', 'vt': '2', 'scc': '1', 'psort': '1', 'wtype': '1', 'ev': 'exbrand_魅族（MEIZU）^exprice_0-1000^', 'uc': '0', 'stock': '0#J_searchWrap'}

url='_from=R40&LH_BIN=1&_sop=13&LH_Complete=1&LH_Sold=1&_udlo=24&_udhi=48&_ipg=200&_pgn=1&_skc=0'
res = dict(parse.parse_qsl(url))
print(res)  # {'_from': 'R40', 'LH_BIN': '1', '_sop': '13', 'LH_Complete': '1', 'LH_Sold': '1', '_udlo': '24', '_udhi': '48', '_ipg': '200', '_pgn': '1', '_skc': '0'}

django.http.request.QueryDict

django的request.GET类型实际是QueryDict，不过是不可变的mutable=False。

if __name__ == "__main__":
    import os
    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "first_review.settings")

    from django.http.request import QueryDict

    qd3 = QueryDict("a=1&b=2",mutable=True)
    qd3.update({"c":3})
    qd3.setdefault("d","ddd")
    qd3.setlistdefault("e",[555,"eee"])
    print(qd3)  # <QueryDict: {'a': ['1'], 'b': ['2'], 'c': [3], 'd': ['ddd'], 'e': [555, 'eee']}>
    print(qd3.urlencode())  # a=1&b=2&c=3&d=ddd&e=555&e=eee

django的QueryDict.urlencode()

QueryDict详细用法，类似于dict