标签：下列表 shu class lis spl value not 一个 import
在写爬虫的时候，经常需要处理cookie，requests库里的cookie是dict，但是headers[‘cookie‘]却是一个key=value的字符串。
下面是几个用推导式实现的转换函数，供大家参考。
#coding=utf-8 #create by :joshua zou #create date :2018.5 import logging #key=value列表转换成cookie字典 def cookie_list_2_dict(cookli): if not isinstance(cookli,list): logging.error(‘error list param...‘) return {} return {item.split(‘=‘)[0]:item.split(‘=‘)[1] for item in cookli} #heads[‘cookie‘]字符串转换成cookie字典 def cookie_str_2_dict(cookstr): if not isinstance(cookstr,str): logging.error(‘error str param...‘) return {} cookstr = cookstr.split(‘;‘) return cookie_list_2_dict(cookstr) #cookie字典转换成key=value列表 def cookie_dict_2_list(cookdi): if not isinstance(cookdi,dict): logging.error(‘error dict param...‘) return [] cookli = ["%s=%s" %(key,value) for key,value in cookdi.items()] return cookli #cookie字典转换成heads[‘cookie‘]字符串 def cookie_dict_2_str(cookdi): if not isinstance(cookdi,dict): logging.error(‘error dict param...‘) return "" cookli = cookie_dict_2_list(cookdi) return ‘;‘.join(cookli) if __name__==‘__main__‘: cookies = {‘AST‘: ‘1525005900068b4106e25d4‘, ‘___bz‘: ‘708632|41171989|2b7718|aladin2_freexx‘, ‘platform‘: ‘H5‘} cookli = cookie_dict_2_list(cookies) cookstr = cookie_dict_2_str(cookies) print(‘cook list‘,cookli) print(‘cook str‘,cookstr) cookdi1 = cookie_str_2_dict(cookstr) cookdi2= cookie_list_2_dict(cookli) print(‘cook dict 1‘,cookdi1) print(‘cook dict 2‘,cookdi2)
输出结果：
cook list [‘AST=1525005900068b4106e25d4‘, ‘___bz=708632|41171989|2b7718|aladin2_freexx‘, ‘platform=H5‘] cook str AST=1525005900068b4106e25d4;___bz=708632|41171989|2b7718|aladin2_freexx;platform=H5 cook dict 1 {‘AST‘: ‘1525005900068b4106e25d4‘, ‘___bz‘: ‘708632|41171989|2b7718|aladin2_freexx‘, ‘platform‘: ‘H5‘} cook dict 2 {‘AST‘: ‘1525005900068b4106e25d4‘, ‘___bz‘: ‘708632|41171989|2b7718|aladin2_freexx‘, ‘platform‘: ‘H5‘}
以上。。。
标签：下列表 shu class lis spl value not 一个 import
原文地址：https://www.cnblogs.com/zhongtang/p/8973059.html
