On Oct 11, 2011, at 10:11 AM, Stephen Langer wrote: > Hi -- > > Does gtk or pygtk use random numbers? I'm writing a program that uses random > numbers (from the stdlib random() function). The program's test suite needs > to have reproducible numbers, so one of the first things it does is to seed > the random number generator with a fixed value. However, > if the random number generator is seeded before the pygtk gui is built, the > random sequence begins at a different point than if the random number > generator is seeded after the gui is built. This indicates that building the > gui consumes some random numbers. > > Where (and why) does pygtk/gtk/cairo/pango use random numbers? The gui > doesn't use them explicitly. If I knew which pygtk calls might use them, > then I could try to avoid those calls in the test suite, or at least ensure > that they occur before the random number generator is seeded. > > Thanks, > Steve
I forgot to mention that I'm using pygtk 2.22 on OS X (MacPorts), but the problem appears on other versions as well. -- Steve -- -- stephen.lan...@nist.gov Tel: (301) 975-5423 -- -- http://math.nist.gov/~SLanger/ Fax: (301) 975-3553 -- -- NIST, 100 Bureau Drive, Stop 8910, Gaithersburg, Md 20899-8910 -- -- "I don't think this will work. That's why it's science." -- -- Naomi Langer (age 6), 17 Feb 2003 -- _______________________________________________ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/
