How to properly use python requests post for sending data? or What's the best way to handle a python

Dude, 400 usually means bad input. Double-check:
1. Is the API expecting JSON? Use `json=` not `data=`.
2. Are headers required? Some APIs need `Accept` or `Content-Type`.
3. Is the endpoint correct? Typos happen.

For debugging, `requests` has `response.request` to see what you actually sent. Also, `httpbin.org/post` is great for testing python requests post.