Books like Python, The Complete Reference
Martin C. Brown
Python, The Complete Reference is 1,200 pages, about 22 hours at 250 words a minute.
6 books to read next
How long each takes
Python For Data Analysis 9.3 h 
Introduction to Machine Learning with Python 6.9 h 
Head First Python 10.3 h 
Raspberry Pi User Guide 5.7 h 
Python for Finance: Analyze Big Financial Data 11.1 h 
Python for Data Science for Dummies 9.1 h Bar height shows length. Estimated at 250 words a minute.