Reddit mentions of Python in Practice: Create Better Programs Using Concurrency, Libraries, and Patterns (Developer's Library)

I like these books:
> Expert Python Programming practices
> Python in Practice: Create Better Programs Using Concurrency, Libraries, and Patterns

Python in Practice is nice because it not only covers some advanced python techniques, but it also covers general design programs such as flyweights, adapters and abstract factories.

be aware the code samples provided are python 3, however you can generally figure out how to implement the examples in python 2.

If someone is really interested in design practices in Python, here is a great book for that
Python in Practice by Mark Summerfield

My condolences on the business (been there, lived through that). Some good, advanced Python 3 books include:

Programming in Python 3: A Complete Introduction to the Python Language (2nd Edition)

A subset of the above - Advanced Python 3 Programming Techniques


Python in Practice: Create Better Programs Using Concurrency, Libraries, and Patterns

Have a look at Pro Python by Marty Alchin (if you're learning Python 2), or Python in Practice if you're learning Python 3.