Peewee vs SQLAlchemy
When comparing Peewee vs SQLAlchemy, the Slant community recommends SQLAlchemy for most people. In the question“What are the best Object Relational Mappers for Python?” SQLAlchemy is ranked 2nd while Peewee is ranked 3rd. The most important reason people chose SQLAlchemy is:
SQLAlchemy works with any (or no) web framework
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Pros
Pro Simple
With its Active Record paradigm, Peewee is simple for simple projects or new users
Pro Good for Django programmers
If you know Django, you'll feel right at home.
Pro Framework agnostic
SQLAlchemy works with any (or no) web framework
Pro Thorough documentation
Pro Actively maintained
Pro Huge community
Pro Data mapper pattern
The persistence layer is less coupled to the business logic; see http://fideloper.com/how-we-code for elaboration
Cons
Con Scaling
Peewee, because of its Active Record paradigm, does not scale as well as SQLAchemy.
Con Complex
SQLAlchemy is packed with features that cover almost every possible use case, but that comes at the expense of simplicity