import re

c = '''
Accept: application/json, text/javascript, */*; q=0.01
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Connection: keep-alive
Content-Length: 242
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Cookie: OUTFOX_SEARCH_USER_ID=-636625617@10.168.1.8; OUTFOX_SEARCH_USER_ID_NCOO=1075352995.079191; Hm_lvt_eaa57ca47dacb4ad4f5a257001a3457c=1568894226; JSESSIONID=aaaXQbfNVU1rgbPOx94nx; ___rl__test__cookies=1595473000749
Host: fanyi.youdao.com
Origin: http://fanyi.youdao.com
Referer: http://fanyi.youdao.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.89 Safari/537.36
X-Requested-With: XMLHttpRequest
'''

pattern = '^(.*?): (.*$)'
for line in c.splitlines():
    print(re.sub(pattern,'\'\\1\': \'\\2\',',line))