Python circa 2000 was a language that was easy to learn.  What you saw was basically what you got. Python in 2018... well... it has grown lots more features, which might not show up in tutorials but a beginner will see them as soon as they look at actual code. List comprehensions, generators, context managers, metaclasses, async/await, decorators, 2/3 split, ABCs, etc. Useful? Yes. Easy to learn or understand for a newbie? Maybe not so much.
Never mind that setting up an environment is no longer as easy as creating a 'lib' directory somewhere in $PYTHONPATH and unzipping files in there. Now we have many package managers, virtual environments, competing Python versions, you name it. Back in the day I started a Python "project" with a single file and worked from there, growing as necessary. Nowadays I see new projects with a dozen files and directories. Again, there are (presumably) reasons for all this, but easier it certainly is not.
 Although even then the "Programming Python" book was like 900 pages... http://shop.oreilly.com/product/9781565921979.do
Programming Python http://shop.oreilly.com/product/9780596158118.do
Not sure where I fall with these books in terms of skill and knowledge. Looking through the table of contents for Learning Python I recognize everything and know what they are, but don't have a great masterful grasp of most of the stuff but I am afraid too much of it will be stuff I already know. On the flip side, Programming Python might be too advanced for me.
Seems Programming Python is mainly geared towards Python 3.x but I'm still using 2.6.
Tute: LPTHW by @zedshaw
Tute: Official Python
and if you must have a book (tutorial) buy @zedshaw "Learn Python the Hardway" or "Learning Python, 3rd Edition" (pink mouse) by Mark Lultz ~ http://www.amazon.com/Learning-Python-3rd-Mark-Lutz/dp/05965... For (reference) get Programming Python (pink python) also by Mark Lutz ~ http://www.amazon.com/Programming-Python-Mark-Lutz/dp/059615...
With a healthy amount of coding, I've gotten very comfortable with python, although I still feel like I'm not quite utilizing it idiomatically. As such, I've been going through Programming Python ( http://oreilly.com/catalog/9780596009250/ ) - which is very well written, IMO - as well as reading a healthy amount of other people's source code, notably CherryPy ( http://cherrypy.org/ ), since I use it a lot.
If you're experienced with other languages, I'd suggest implementing something like a tetris clone as an exercise in learning the language. If you're only experienced with web-dev (as is often the case these days), I'd recommend implementing a few small web-apps with CherryPy - it's the most "pythonic" "web framework" I've seen so far.
Oh, and keeping an eye on the mailing lists ( http://mail.python.org/mailman/listinfo ), particularly python-list, python-ideas, python-dev, and python-3000, can be very enlightening.
To learn how email was invented
To get an idea of how the specifications started
and how they are now interpreted
and to program a simple client in python read the source code from
Programming Python by Mark Lutz ~ http://www.rmi.net/~lutz/about-pp3e.html I mention Python & Lutz specifically because they are covered in detail as a CLI then GUI app in "Programming Python Ed3", pp 766 - 911 ~ http://www.oreilly.com/catalog/python3/ You can download the source examples here ~ http://examples.oreilly.com/python3/
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