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

For python requests post, here’s a quick breakdown:
- `data=` sends form-encoded data (like HTML forms).
- `json=` sends JSON data (most APIs prefer this).
- `headers=` adds metadata (e.g., auth tokens).

Your 400 error might be from missing headers or wrong data format. Try:

```python
response = requests.post(
'https://example.com/api',
json={'key': 'value'},
headers={'Authorization': 'Bearer YOUR_TOKEN'}
)
```

Debug with `print(response.status_code, response.text)`.