See https://opendatascience.com/removing-items-from-a-set-remove-pop-and-difference/

This puts the focus on a few important set operations.

Python 101, by Michael Driscoll. 545 pages, available from leanpub.com in a variety of formats. Available soon in hardcover.

The modern Python programming language is a large topic. A book on a programming language has to be seen as a collection of several large topics.

At its core, a …

Most of the things that got cut were (to me) obviously obsolete. For example, replacing collections.namedtuple with typing.NamedTuple seemed like a clear example of obsolete. A reviewer really thought I should skip all NamedTuple and use frozen data classes.

More important are some things that I learned about …

For the author, a book is a journey.

Writing something new, the author describes a path the reader can follow to get from -- well -- anywhere the reader might be to the author's suggested destination. Not everyone makes the whole trip. And not everyone arrives at the hoped-for destination.

Second editions …

It's time to revise Mastering Object-Oriented Python. While the previous edition is solidly focused on Python3, it lacks some important features:

• F-Strings
• Type Hints
• types.NamedTuple
• Data Classes

So. There's some stuff to add. I don't think there's too much to take away. I plan to make some things a …

In Montreal! How cool is that? I'll be working for my current employer, also a sponsor, to locate Python talent. I'll have a few copies of my books that I can give away. Most importantly, the promotional code PYCON_LOTT gives 50% off my Packt titles and runs from April 7th …

Be there: http://www.oreilly.com/pub/e/3255

Of course, I've got too many slides. 58 slides for a 60 minute presentation. That's really about 2 hours of material. Unless people have questions, then it's a half-day seminar.

Seriously.

I think I've gone waaaay too far on this. But …

Okay. This seems shameless. But. Here's the link http://bit.ly/1zg0mpA straight to my book information page on www.PacktPub.com.

I'm slowly coming to grips with the reality of marketing.

I've now got my actual souvenir hard-copies of my two Packt books https://www.packtpub.com/application-development/mastering-object-oriented-python https://www.packtpub.com/hardware-and-creative/python-secret-agents So far, so good. I've got one more title in the works. After that, I think I'll have to take a small break and do some …

http://www.oreilly.com/pub/e/3255 I'm a pretty good public speaker. But I've avoided webcasting and podcasting because it's kind of daunting. In a smaller venue, the audience members are right there, and you can tell if you're not making sense. In a webcast, the feedback will be …