Cybersecurity reports from Q2 2023 show a 450% increase in malware disguised as programming PDFs. Scammers know developers have high-value GitHub tokens and SSH keys. When you download a fake "UPD" PDF from an untrusted pop-up site, you aren't getting code; you are getting a Trojan.

Structuring your code efficiently and understanding Object-Oriented Programming (OOP).

Every 6 months, these sites run a "Learn Python" bundle. You can get the "Eric Matthes" crash course plus 10 other books for $18 total. This is often cheaper than a pizza and infinitely healthier for your career.