Thanks for your reply, anyway. I've tried to change the backend to GTKAgg and now when I startt ipython -pylab I receive: Traceback (most recent call last): File "C:\Python25\scripts\ipython.py", line 28, in <module> IPython.Shell.start().mainloop() File "C:\Python25\Lib\site-packages\IPython\Shell.py", line 1233, in start return shell(user_ns = user_ns) File "C:\Python25\Lib\site-packages\IPython\Shell.py", line 1108, in __init__ shell_class=MatplotlibMTShell) File "C:\Python25\Lib\site-packages\IPython\Shell.py", line 793, in __init__ on_kill=[mainquit]) File "C:\Python25\Lib\site-packages\IPython\ipmaker.py", line 103, in make_IPython embedded=embedded,**kw) File "C:\Python25\Lib\site-packages\IPython\Shell.py", line 639, in __init__ user_ns,user_global_ns,b2 = self._matplotlib_config(name,user_ns,user_global_ns) File "C:\Python25\Lib\site-packages\IPython\Shell.py", line 559, in _matplotlib_config import matplotlib.pylab as pylab File "C:\Python25\Lib\site-packages\matplotlib\pylab.py", line 253, in <module> from matplotlib.pyplot import * File "C:\Python25\Lib\site-packages\matplotlib\pyplot.py", line 75, in <module> new_figure_manager, draw_if_interactive, show = pylab_setup() File "C:\Python25\Lib\site-packages\matplotlib\backends\__init__.py", line 25, in pylab_setup globals(),locals(),[backend_name]) File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_gtkagg.py", line 14, in <module> from matplotlib.backends._gtkagg import agg_to_gtk_drawable ImportError: No module named _gtkagg
I have the suspect that matplotlib windows support simply doesn't exist:) I'll try prepackaged windows distributions like EPD or Python(x,y) and hope this will solve this issue... Thanks again. 2009/7/21 Jae-Joon Lee <lee.j.j...@gmail.com> > As the warning message indicates, I think this is a backend issue. > The recommended backend (for screen display) is the Agg family, e.g., > TkAgg, GTKAgg, etc. > > I rarely use Windows and I never used matplotlib on Windows, so there > is not much I can help. > I'm not sure which backend is available on Windows, but try some other > backend. > > http://matplotlib.sourceforge.net/faq/installing_faq.html#what-is-a-backend > > Also, please check out the binary installer for windows, > > http://matplotlib.sourceforge.net/faq/installing_faq.html#windows-questions > > Regards, > > -JJ > > > On Tue, Jul 21, 2009 at 4:01 AM, Domenico Nappo<domenico.na...@gmail.com> > wrote: > > Hi JJ, > > thanks for your reply. > > Let me say first that I've some problems with installation, I think: when > I > > try to run ipython -pylab I got the following: > > C:\Documents and Settings\user>ipython -pylab > > Traceback (most recent call last): > > File "C:\Python25\scripts\ipython.py", line 28, in <module> > > IPython.Shell.start().mainloop() > > File "C:\Python25\Lib\site-packages\IPython\Shell.py", line 1233, in > start > > return shell(user_ns = user_ns) > > File "C:\Python25\Lib\site-packages\IPython\Shell.py", line 1108, in > > __init__ > > shell_class=MatplotlibMTShell) > > File "C:\Python25\Lib\site-packages\IPython\Shell.py", line 793, in > > __init__ > > on_kill=[mainquit]) > > File "C:\Python25\Lib\site-packages\IPython\ipmaker.py", line 103, in > > make_IPython > > embedded=embedded,**kw) > > File "C:\Python25\Lib\site-packages\IPython\Shell.py", line 639, in > > __init__ > > user_ns,user_global_ns,b2 = > > self._matplotlib_config(name,user_ns,user_global_ns) > > File "C:\Python25\Lib\site-packages\IPython\Shell.py", line 559, in > > _matplotlib_config > > import matplotlib.pylab as pylab > > File "C:\Python25\Lib\site-packages\matplotlib\pylab.py", line 253, in > > <module> > > from matplotlib.pyplot import * > > File "C:\Python25\Lib\site-packages\matplotlib\pyplot.py", line 75, in > > <module> > > new_figure_manager, draw_if_interactive, show = pylab_setup() > > File "C:\Python25\Lib\site-packages\matplotlib\backends\__init__.py", > line > > 25, in pylab_setup > > globals(),locals(),[backend_name]) > > File > "C:\Python25\Lib\site-packages\matplotlib\backends\backend_gtk.py", > > line 25, in <module> > > from matplotlib.backends.backend_gdk import RendererGDK, > FigureCanvasGDK > > File > "C:\Python25\lib\site-packages\matplotlib\backends\backend_gdk.py", > > line 29, in <module> > > from matplotlib.backends._backend_gdk import pixbuf_get_pixels_array > > ImportError: No module named _backend_gdk > > > > If I comment the import statement for _backend_gdk in backend_gdk.py, > > ipython runs well. > > Below, the code: > > In [20]: > > > X=load('E:\\user\\Applicazioni\\EFGExtractor\\dataJan03Dec08.matplotlibtest',converters={0:strpdate2num('%Y-%m-%d')}) > > > > In [21]: time = X[:,0] > > > > In [22]: time > > Out[22]: array([ 731216., 731217., 731218., ..., 733040., 733041., > 733042.]) > > > > In [23]: data = X[:,1] > > > > In [24]: data > > Out[24]: array([ 150., 140., 142., ..., 92., 84., 76.]) > > > > > > In [30]: fig = figure() > > > > In [31]: ax = fig.add_subplot(111) > > > > In [32]: ax.plot_date(time, data, '-') > > Out[32]: [<matplotlib.lines.Line2D object at 0x0218B030>] > > > > In [33]: show() > > > > In [34]: fig.autofmt_xdate() > > > > > > In [37]: > > C:\Python25\lib\site-packages\matplotlib\backends\backend_gdk.py:148: > > UserWarning: backend_gdk: unable to draw text at angles other than 0 or > 90 > > 'other than 0 or 90') > > This time I've noticed the warning above: "unable to draw text at angles > > other than 0 or 90" > > Thanks in advance for any clarification... > > 2009/7/17 Jae-Joon Lee <lee.j.j...@gmail.com> > >> > >> Please post a simple, standalone script that reproduces your problem, > >> so that we can track down what is causing the problem. I don't think > >> there has been any report of a similar issue (but not sure). As far as > >> I know, autofmt_xdata only adjusts the alignment and rotation of the > >> ticklabels and does not change the font property. > >> > >> -JJ > >> > >> > >> On Thu, Jul 16, 2009 at 10:55 AM, Domenico > >> Nappo<domenico.na...@gmail.com> wrote: > >> > Whenever I try to use autofmt_xdate() on a Figure(), dates on x axis > >> > disappear...I guess this is related with something concerning font > >> > management... > >> > Anyone experienced this kind of issues? > >> > > >> > I use most recent versions of matplotlib, numpy, gtk2, pygtk on a > Python > >> > 2.5 > >> > platform (installed via binaries on a window xp machine). > >> > > >> > > >> > > ------------------------------------------------------------------------------ > >> > Enter the BlackBerry Developer Challenge > >> > This is your chance to win up to $100,000 in prizes! For a limited > time, > >> > vendors submitting new applications to BlackBerry App World(TM) will > >> > have > >> > the opportunity to enter the BlackBerry Developer Challenge. See full > >> > prize > >> > details at: http://p.sf.net/sfu/Challenge > >> > _______________________________________________ > >> > Matplotlib-users mailing list > >> > Matplotlib-users@lists.sourceforge.net > >> > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > >> > > >> > > > > > >
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