pylab.show() takes no arguments. The pylab interface is "stateful", meaning you run a series of commands in order and it usually does the right thing, rather than passing the results of one function into another (in general).
Did you not get an exception when you ran your example? The following works for me: import pylab x1 = pylab.arange(-10, 10, 0.01) x2 = pylab.arange( 0, 10, 0.01) f1 = [0 for e in x1] f2 = [1 for e in x2] pylab.plot(x1, f1, x2, f2) pylab.show() [EMAIL PROTECTED] wrote: > I don't know what dumb thing I'm going but I can't seem to plot > 2 horizontal lines on the same plot!!! > > > Why does this snippet give a *BLANK* plot when I run it? > > (Either line separately seems to be ok!?!?) > > import pylab > x1 = pylab.arange(-10, 10, 0.01) > x2 = pylab.arange( 0, 10, 0.01) > f1 = [0 for e in x1] > f2 = [1 for e in x2] > pylab.show(pylab.plot(x1, f1, x2, f2)) > > > Chris > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
