Great Articles About Python/Flask/etc.
Understanding Package Imports in Python by Daniel Kronovet
Storing User Passwords Securely: hashing, salting, and Bcrypt by Dustin Boswell
SQLAlchemy and You (Differences between Django’s ORM and SQLAlchemy) by Armin Ronacher
Learn SQL, Dammit! by Michael Herman
PEP257: Good Python Docstrings By Example by Dolph Matthews
Favorite Python Modules
Flake8 – static analysis tool combining pep8 and pyflakes (plus optional cyclomatic complexity checker)