Bill, very cool. Also, thanks for showing me how Twisted can be used like Pyro, more-or-less, I think. (If I understand your code from my 1 minute perusal.)
On Mac OS X, there's one issue I don't have time to follow any further: sys.executable points to /Library/Frameworks/Python.framework/Versions/2.4/Resources/Python.app/Contents/MacOS/Python whereas /Library/Frameworks/Python.framework/Versions/Current/bin/python is the file actually on my path. For some reason, when I run the latter ezplot is found, when the former, it is not. Thus, your auto-spawning of a plotserver instance fails on my installation. Other than that, the example you gave works as advertised and looks great. (Ohh, those anti-aliased lines look better and better the more I suffer through my colleagues' aliased plots...) Bill Baxter wrote: > Howdy Folks, > > I was missing the good ole days of using Matlab back at the Uni when I > could debug my code, stop at breakpoints and plot various data without > fear of blocking the interpreter process. > > Using "ipython -pylab" is what has been suggested to me in the past, > but the problem is I don't do my debugging from ipython. I have a > very nice IDE that works very well, and it has a lovely interactive > debugging prompt that I can use to probe my code when stopped at a > breakpoint. It's great except I can't really use matplotlib for > debugging there because it causes things to freeze up. > > So I've come up with a decent (though not perfect) solution for > quickie interactive plots which is to run matplotlib in a separate > process. I call the result it 'ezplot'. The first alpha version of > this is now available at the Cheeseshop. (I made an egg too, so if > you have setuptools you can do "easy_install ezplot".) > > The basic usage is like so: > > In [1]: import ezplot > In [2]: p = ezplot.Plotter() > In [3]: p.plot([1,2,3],[1,4,9],marker='o') > Connecting to server... waiting... > connected to plotserver 0.1.0a1 on http://localhost:8397 > Out[3]: True > In [4]: from numpy import * > In [5]: x = linspace(-5,5,20) > In [13]: p.clf() > Out[13]: True > In [14]: p.plot(x, x*x*log(x*x+0.01)) > > (Imagine lovely plots popping up on your screen as these commands are typed.) > > The only return values you get back are True (success...probably) or > False (failure...for sure). So no fancy plot object manipulation is > possible. But you can do basic plots no problem. > > The nice part is that this (unlike ipython's built-in -pylab threading > mojo) should work just as well from wherever you're using python. > Whether it's ipython (no -pylab) or Idle, or a plain MS-DOS console, > or WingIDE's debug probe, or SPE, or a PyCrust shell or whatever. It > doesn't matter because all the client is doing is packing up data and > shipping over a socket. All the GUI plotting mojo happens in a > completely separate process. > > There are plenty of ways this could be made better, but for me, for > now, this probably does pretty much all I need, so it's back to Real > Work. But if anyone is interested in making improvements to this, let > me know. > > Here's a short list of things that could be improved: > * Right now I assume use of the wxAGG backend for matplotlib. Don't > know how much work it would be to support other back ends (or how to > go about it, really). wxAGG is what I always use. > * Returning more error/exception info from the server would be nice > * Returning full fledged proxy plot objects would be nice too, but I > suspect that's a huge effort > * SOAP may be better for this than xmlrpclib but I just couldn't get > it to work (SOAPpy + Twisted). > * A little more safety would be nice. Anyone know how to make a > Twisted xmlrpc server not accept connections from anywhere except > localhost? > * There's a little glitch in that the spawned plot server dies with > the parent that created it. Maybe there's a flag to subprocess.Popen > to fix that? > * Sometimes when you click on "Exit Server", if there are plot windows > open it hangs while shutting down. > > > Only tested on Win32 but there's nothing much platform specific in there. > > Give it a try and let me know what you think! > > --bb > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys-and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
