Wireshark does not capture python POST request
You are unable to capture HTTP POST request because you are using Wireshark http filters. Do not filter traffic with HTTP filters, instead of that use website/URL IP address.
I have just tried to filter the traffic with the help of Wireshark and found that I can filter it with the help of IP address.
Refer below link,https://www.w3schools.com/python/ref_requests_post.asp
Use Filter : "ip.addr==192.229.133.221"
I can filter the packets, but its TCP encrypted traffic and we cannot get additional information without decryption.
Refer below answer, it will help you to find the IP address of your URL.
How to use filters in the wireshark?
If you are not comfortable with it, use “Microsoft Network Monitor” tool. It shows applications name along with IP address and ports.
Once you know the IP address and ports used, you can filter the traffic with the help of Wireshark easily.
Note:- I will suggest instead of "Wireshark" or "Microsoft Network Monitor”, please use fiddler. Refer below link,