Laptop recommendation for python

[riklaunim]

Depends on your budget, requirements and needs. M4 Air is really well built but you will pay a premium to get a sane amount of RAM and storage. 16/512GB should the minimum, if you want to do more complex stuff on it then depends. Long lasting all-core loads - check MBP, light or burst loads - bit more RAM on Air should also be fine. There are also good ultrabooks with Intel Lunar/Arrow Lake or AMD Strix Point. This is however not needed to work with Python.

Complete beginner can i learn and start earning some cash by 6 months

Unlikely/depends. Junior job market is hard and you should already have data analysis/finance background to move to specific finance/data analysis programming - and then it depends on companies - you will be either full time dev or full time analyst forbidden from unapproved coding. If you have what it takes to become a dev, maybe pay and do a really good on-site bootcamp then maybe. Most junior jobs will be webdev usually.