Update free-programming-books-langs.md (#9621)

books/free-programming-books-langs.md

@@ -2041,6 +2041,7 @@ Books on general-purpose programming that don't focus on a specific language are
 * [The Definitive Guide to Jython, Python for the Java Platform](https://jython.readthedocs.io/en/latest/) - Josh Juneau, Jim Baker, Victor Ng, Leo Soto, Frank Wierzbicki (2.5)
 * [The Little Book of Python Anti-Patterns](http://docs.quantifiedcode.com/python-anti-patterns/) ([Source](https://github.com/quantifiedcode/python-anti-patterns))
 * [The Programming Historian](http://niche-canada.org/research/niche-digital-infrastructure-project/the-programming-historian/) - William J. Turkel, Adam Crymble and Alan MacEachern
+* [The Python Coding Book](https://thepythoncodingbook.com) - Stephen Gruppetta (HTML)
 * [The Python GTK+ 3 Tutorial](http://python-gtk-3-tutorial.readthedocs.org/en/latest/)
 * [The Python Handbook](https://flaviocopes.com/page/python-handbook/) - Flavio Copes (PDF, EPUB, Kindle) *(email address requested)*
 * [The Recursive Book of Recursion](https://inventwithpython.com/recursion/) - Al Swigart (HTML) (3.x)