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WxPython in Action 77

aceydacey writes ""WxPython in Action" is a new and definitive guide to the popular wxPython GUI framework. WxPython has been growing in popularity by leaps and bounds in recent years but has been hampered by a comparative lack of good, comprehensive documentation, so much so that many people have turned to studying the documentation for the underlying wxWidgets framework, that is written in C++. "WxPython in Action" fills the void by combining a good introduction to the framework with a comprehensive and accessible reference document. At 552 pages, Manning Publications has produced a definitive book." Read the rest of Ron's review.
WxPython in Action
author Robin Dunn and Noel Rappin
pages 552
publisher Manning
rating 10
reviewer Ron Stephens
ISBN 1-932394-62-1
summary An introduction to the WxPython GUI Framework


WxPython is one of the best cross-platform GUI toolkits for the open source Python programming language. It excels in matching the native look and feel of programs on Windows, Linux, and Mac OS X. It is a mature project, being a well-developed wrapper of the underlying wxWidgets C++ toolkit. Another reason for its growing popularity is its very extensive number of widgets, making it a capable and modern tool for making professional-looking GUIs for applications in almost any field of endeavor. It has endured a reputation for having a steep learning curve, and for sometimes being difficult to install and easy to break during upgrades; both of which downsides should be lessened by the publishing of this book.

Written by Robin Dunn, the creator and moving force behind wxPython, and ably assisted by Noel Rappin, this book is definitive, authoritative and well-written. Part 1 fills the role of a good introduction to the toolkit, and Parts 2 and 3 are a thorough reference to the widgets, behavior and usage of the framework.

in Part 1, we learn the inside story behind the beginnings and the history of wxPython's development. We are walked through the creation of simple examples of the core functionality of the framework illustrating how to create and use the basic controls and event loops. Then, we get a more detailed explanation of the wxPython event loop, an introduction to PyCrust (a useful tool for wxPython programmers, essentially an interactive interpreter session, wrapped as a wx widget) a whole chapter on the Model-View-Controller paradigm, and a discourse on good factoring techniques for GUI programs. This is rather general programming knowledge, not necessarily specific to wxPython, and truly expert programmers will probably skip much of this material, but for many, like me, it is very useful, and for many others, it will be a good review of previously known material. The writing style is excellent but one weakness is that the authors return again and again to wxPython evangelism and boosterism, which is regrettable; but this is the only section of the book to suffer from this flaw.

Part 2 gives detailed coverage of each widget, control, frame, dialog, and menu in the toolkit, and this is the meat of the book and will be used and reused as core reference material by many a programmer. This is good stuff, thorough, well researched, and definitive. Next, the authors give an equally good explanation of how to use sizers and grids to layout and control your GUI application. Part 2 fills the previously missing gap in core wxPython documentation and, to folks who need it, is worth its weight in gold.

Part 3, called Advanced wxPython, gives welcome coverage to advanced layout and control issues. This subject of advanced layout is, in my opinion, where the rubber really hits the road in GUI design, and it is appropriate that this is where the authors spend the most time and effort, and with good result. The final chapter breaks new ground by walking the reader through the creation of a multithreaded wxPython application. This is great stuff, and the advanced readers will be left pining for even more on this timely topic of such growing importance. Fortunately, the authors are available online to communicate with users who truly master the material in the book and want to to pursue more advanced usage.

The book is at its best in documenting the core API for expert programmers who are new to wxPython. It is also a good introduction to wxPython for advanced programmers. For moderately experienced programmers, the book is excellent but will be a tough read; probably not to be mastered in a straight read thorough, the book will adequately reward this kind of reader who is dedicated and persistent. For novice programmers, especially those who have little to no previous experience in GUI programming, I believe the book may be beyond their grasp.

So, if you are a serious programmer who wants or needs to use the wxPython GUI toolkit, "wxPython in Action" is a must-have reference book. It is perfect for this kind of reader and will become a well-worn book that will be useful for at least the next five years. It is unlikely that any other book about wxPython will be published that could do a better job, given the authors' unparalleled understanding of the toolkit and the obvious patience, time and care they took in researching, writing, and editing this book. It is not a casual read, but to a serious student of the subject, that is a positive statement. The book is strong meat, a weighty and substantive technical tome.

The book really shines in the many pages devoted to User Interface design and implementation. This is where many programmers need help, and it is gratifying that this book goes into the most detail on this subject. This is very detailed coverage and one is left with a satisfaction that, while not easy reading, it is well worth while. I feel this is the book's strongest point.

I know that it sometimes seems there has been an inflation in the scoring of books, with reviewers giving so many high ratings that one wonders how meaningful those ratings are. This book is not for everybody, and it is not a work of great literature, but given the obvious need for such a work, and the careful and accurate fulfillment of this need by these authors, I feel justified in giving it a rating of ten stars. For the people who really need this book, it is about as good as it could get, and will be a most welcome addition to their technical library.

More material for those learning and using Python can found at my web site Python Learning Resources.


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WxPython in Action

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  • by Duhavid ( 677874 ) on Monday July 10, 2006 @04:57PM (#15693766)
    Ignore it mostly, until it becomes relevant to you.
  • Re:Python wrappers (Score:3, Insightful)

    by Senzei ( 791599 ) on Monday July 10, 2006 @04:58PM (#15693768)
    That could be said about any of the 100's of shity half-finished Python wrappers that clog my Gentoo system. What a scourge. To anyone who thinks it would be nice to wrapper C/C++ library , don't do it! I would advise anyone who wants to use wXWidgets to do so in C++. The event abstraction is a lot nicer that Qt and the library is just as portable.
    I guess I am really not following here, but how else are you supposed to handle widgets in python without some kind of wrapper over C/C++? Wouldn't doing all of it yourself be a lot more work for much less benefit than wrapping up an existing library?
  • Nice, but... (Score:3, Insightful)

    by Angst Badger ( 8636 ) on Monday July 10, 2006 @05:06PM (#15693828)
    ...it sure would be great if someone would do this for the other wx language bindings. For something as complex as a widget library, lacking comprehensive documentation renders it all but useless to anyone but folks with lots of time on their hands.
  • by bigqueso ( 562944 ) on Monday July 10, 2006 @05:07PM (#15693834)

    I got this book a few months ago with the hope that it would be a nice introduction and reference. I bought it from the publisher, because I could also get a PDF version. That has been really nice since it makes it easier to look for examples.

    The book was a nice introduction to someone who isn't familiar with wxWidgets or wxPython and it reads well. Despite this, I found the book to be lacking as a good reference book. The index is kind of sparse, and I found myself turning more and more to the wxWidgets and wxPython web sites and demo.py as a reference for specific widgets. I don't plan on taking my copy back, but I instead use it as just one more avenue for information.

  • Comment removed (Score:3, Insightful)

    by account_deleted ( 4530225 ) on Monday July 10, 2006 @05:27PM (#15693962)
    Comment removed based on user account deletion
  • by kollivier ( 449524 ) on Monday July 10, 2006 @08:40PM (#15695022)
    Have you run the wxPython demo? Or are a couple random screenshots enough to get you to "strongly disagree" about something? There are still a couple controls that need work on the Mac port, but a vast majority of its controls are 100% native and match native behavior as closely as possible. (In the cases that the OS doesn't just 'give it to us' for free.)

    wx, however, is like any other toolkit. It doesn't force you to adhere to HIGs, and unfortunately many Mac ports are from Win/Linux apps, and focus their resources on those ports because, sadly, that's where the users/customers are. A number of wx apps don't even support Mac, not because they can't, but because they simply don't have (enough) users that are interested in the Mac port. As Mac customers and support becomes more important, so too will the number of applications that optimize for Mac, and let me tell you, those that used wx will find they can probably polish their GUI in a matter of days.

    And in fact, we're working on cutting the work needed for HIG-compliance on all platforms too. At the wxPython level, we're working on additions to wx controls that are automatically HIG-compliant for Win, OS X and GNOME/GTK. So long as you use this library, your controls will space themselves according to the HIGs. If you're really interested in cross-platform development, I'd strongly encourage you to look at what's out there and then determine if wx is really such a bad choice for getting native Mac LNF.

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