In Python3 how would you parse each character of an http post to ensure the request is valid? Primarily concerned with POST /r1.html and Content-type: ...? Possibly by import re? POST /r1.html HTTP/1.1   Host: localhost:8001   Connection: keep-alive   Content-Length: 32   Cache-Control: max-age=0   Origin: http://localhost:8001   Upgrade-Insecure-Requests: 1   User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_4)   Content-Type: application/x-www-form-urlencoded

   Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8   Referer: http://localhost:8001/f1.html   Accept-Encoding: gzip, deflate, br   Accept-Language: en-US,en;q=0.8

   Cookie: Webstorm-ea36d52b=7cf702c4-f920-40c7-acfd-a25b1d77b36c   fname=John&lname=Doe&gender=male