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

Hey everyone!

I'm trying to figure out how to properly use python requests post to send some data to an API, but I keep running into issues.

I’ve got this basic code:

```python
import requests
response = requests.post('https://example.com/api', data={'key': 'value'})
```

But it’s not working as expected. The server keeps returning a 400 error. Am I missing something?

Also, how do I add headers or params to a python requests post? I saw some examples with `headers={}` and `json=` instead of `data=`, but not sure when to use which.

Would really appreciate if someone could break it down with a clear example or point out common mistakes.

Thanks in advance!

(PS: If you’ve got any tips for debugging python requests post, throw 'em my way!)