Better error handling on market analytics tool

I am a lead journalist in in charge of the finance section of a blog, I frequently post about the stock & crypto market.

I have a script that fetches data from certain API endpoints, it then saves the obtained information to a .txt file, which I then later use to aid me in writing out my reports.

I would like the following enhancements applied to the script:
- Detailed logging that lets me know what's happening every step of the way.
- Better error handling, so the script doesn't crash when I get an error.
- Rate limiting, to avoid those pesky 429 errors.

The applicant must be proficient in Python. I need this completed as soon as possible, I'm dependent on this script to get me key information which makes writing posts a whole lot more simpler.

Thanks,
Katie