I'm the lead developer of calibre (http://calibre.kovidgoyal.net) which is ~120k lines of python + another few thousand lines of C code.
I've found in general that you can quite easily use multi-processing instead of multi-threading to get around the global interpreter lock (this assumes that your algorithms dont require lots of data passing). For performance/os interface sections of the code, it's easy enough to write C modules to do the neccessary work. It occassionally becomes neccessary to drop down to C for high performance parts of the GUI as well, though i can't comment on OpenGL. Basically, python will work very well for about 90-95% of what you need to do, for the rest, write C modules. Interfacing Python and C is trivial. Kovid. On Thu, Feb 19, 2009 at 02:33:57PM -0800, Brent Villalobos wrote: > I'm looking for examples from people who have written large PyQt > applications and I would like to hear your opinions on what worked well > and what did not specifically with choosing python over C/C++. In > particular, how does your python application handle tasks that require a > lot of computation? How does it handle multiple thread performance > given python's limitations on only running on one CPU (global > interpreter lock)? I don't need too much detail (obviously nothing > proprietary), but I just want to know if anyone has any "red flags" that > people should be aware of before writing a large python gui app with > things like openGL contexts and heavy mathematical computation? > > Let's make this interesting and see who has written the largest PyQt > application. How many lines of code are we talking about? 10,000? > 100,000? 1,000,000!!!!??? > -Brent > _______________________________________________ > PyQt mailing list PyQt@riverbankcomputing.com > http://www.riverbankcomputing.com/mailman/listinfo/pyqt > > !DSPAM:3,499ddeb575724022331274! > > -- _____________________________________ Kovid Goyal http://www.kovidgoyal.net http://calibre.kovidgoyal.net _____________________________________
pgp2jCp988cFP.pgp
Description: PGP signature
_______________________________________________ PyQt mailing list PyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt