When i Search Python related books on your site, It shows Mastering regular expression in Intermediate level, But Their is no python related material available in this book like Java, Perl etc.
Why you don't include python specific chapter in Mastering Regular Expression 3rd ed?
Thanks for writing us about this, and I'm sorry for the frustration. While the book doesn't have a Python-specific chapter, it does discuss Python throughout the book, explaining what works with Python and how it may work the same or differently than the example language.
I'll pass your comment on to the editor, so he'll know that there's interest in a Python section for the next edition.