On Tue, Nov 8, 2011 at 11:15 AM, Bedartha Goswami <gosw...@pik-potsdam.de>wrote:
> Hi,
>
> I have recently installed Python 32/64bit from Python.org and then I
> proceeded to install bumpy, scipy, matplotlib and igraph on it. But the
> Matplotlib does not show the plots even if it opens a Figure window. Here
> is a summary of what I had done in my installation:
> -----
> I first did a "clean install" by following the instructions at (with an
> idea to reinstall Matplotlib and see if the rror repeats):
> http://matplotlib.sourceforge.net/faq/installing_faq.html#clean-install
> -----
> So now my python does not have matplotlib:
>
> Bedarthas-MacBook-Air:~ bedartha$ cd ~/Desktop/
> Bedarthas-MacBook-Air:Desktop bedartha$ python
> Python 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34)
> [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import matplotlib
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> ImportError: No module named matplotlib
> >>>
> Bedarthas-MacBook-Air:Desktop bedartha$
> -----
> Then I downloaded (again) the DMG file at:
>
> http://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-1.1.0/matplotlib-1.1.0-py2.7-python.org-macosx10.3.dmg/download
> -----
> and installed Matplotlib (which seems to go through fine). But after that:
>
> Bedarthas-MacBook-Air:~ bedartha$ cd ~/Desktop/
> Bedarthas-MacBook-Air:Desktop bedartha$ python
> Python 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34)
> [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import matplotlib as mpl
> >>> from pylab import *
> >>> plot([1,2,3])
> [<matplotlib.lines.Line2D object at 0x2f87fb0>]
> >>> show()
> Exception in Tkinter callback
> Traceback (most recent call last):
> File
> "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk/Tkinter.py",
> line 1410, in __call__
> return self.func(*args)
> File
> "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/backends/backend_tkagg.py",
> line 236, in resize
> self.show()
> File
> "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/backends/backend_tkagg.py",
> line 240, in draw
> tkagg.blit(self._tkphoto, self.renderer._renderer, colormode=2)
> File
> "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/backends/tkagg.py",
> line 19, in blit
> tk.call("PyAggImagePhoto", photoimage, id(aggimage), colormode,
> id(bbox_array))
> TclError
> >>>
> Bedarthas-MacBook-Air:Desktop bedartha$
> -----
> Here is the essential info about my machine and my Python and Matplotlib
> versions:
>
> Bedarthas-MacBook-Air:~ bedartha$ uname -a
> Darwin Bedarthas-MacBook-Air.local 11.0.1 Darwin Kernel Version 11.0.1:
> Wed Jun 29 19:53:22 PDT 2011; root:xnu-1699.23.2~1/RELEASE_X86_64 x86_64
> -----
> Bedarthas-MacBook-Air:Desktop bedartha$ python
> Python 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34)
> [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import matplotlib as mpl
> >>> mpl.__version__
> '1.1.0'
> >>>
> Bedarthas-MacBook-Air:Desktop bedartha$
> -----
> I also have the following alias (in ~/.bash_profile) for my Python2.7 (to
> deal with some issues in igraph):
>
> alias python="arch -i386 python"
> -----
>
> Can anyone please help me out?
>
> Best regards,
> and apologies for the lengthy post,
>
> Bedartha
>
>
As a test, try to set your backend to either 'cocoaagg' or 'macosx' like so:
import matplotlib as mpl
mpl.use('cocoaagg')
There have been issues with TkAgg on macs. I have personally not had any
success with it (even with ActiveState's Tcl).
Ben Root
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