matplotlib-users Mailing List for matplotlib

Eric Firing, on 2011年12月27日 15:31, wrote:
> It looks like this is something I can fix by modifying ListedColormap. 
> It is discarding the alpha values, and I don't think there is any reason 
> it needs to do so.
One of my first attempts at a contribution to matplotlib three
years ago was related to this. It was in reply to a similar
question on list, and I wrote a patch, but never saw it through
to inclusion because it wasn't something I needed.
http://www.mail-archive.com/mat...@li.../msg09216.html
I think it's a helpful starting point, as I include a discussion
on the limitation of mpl colormaps there.
-- 
Paul Ivanov
314 address only used for lists, off-list direct email at:
http://pirsquared.org | GPG/PGP key id: 0x0F3E28F7 

Hello all,
I have a python module that requires making about 24 different kinds of plots, and to keep things tidy I put them all in different modules, which I then import.
All the import calls are at the head of the top module. There is one plotting call inside a while loop, and it is returning blank plots saved in the proper location. Blank meaning no axes, so it is a totally empty .png file. After the loop, the first plot called is being saved, but all the subsequent plots are saving as blank. I begin every plotting module with matplotlib.pyplot.clf() and then write out the individual plotting commands.
This worked fine when everything was in one gigantic module, but I am at a loss for why it has stopped working once I put everything into submodules.
Thanks for your help,
Stephen D. Webb
Associate Research Scientist
Tech-X Corporation
http://www.txcorp.com
e: sw...@tx...
5621 Arapahoe Ave. Suite A
Boulder, CO 80303 USA

On Friday, December 30, 2011, klo uo <kl...@gm...> wrote:
>>>> from mpl_toolkits.basemap import Basemap
>
> /usr/local/lib/python2.7/dist-packages/mpl_toolkits/__init__.py:2:
UserWarning: Module dateutil was already imported from
/usr/local/lib/python2.7/dist-packages/dateutil/__init__.pyc, but
/usr/lib/pymodules/python2.7 is being added to sys.path
> __import__('pkg_resources').declare_namespace(__name__)
>
>
> I always get this warning, and IIRC when importing some MPL module
possibly too
>
> I removed MPL 1.0.1 and upgraded to 1.1.0 but nothing changed in regard
to this warning
>
> Also Google did not reveal much - it's listed on IPython mailing list,
and also in "pyroms" forum again when someone tried to import Basemap
package.
>
> So why is this and what can I do to avoid this warning when I import
Basemap
>
> Thanks
>
I just noticed this warning this week, so it is good to know others have
gotten it, too. The odd thing is that one of my scripts triggers it, but
another (nearly identical) script does not.
I will be investigating this further.
Ben Root

>>> from mpl_toolkits.basemap import Basemap
/usr/local/lib/python2.7/dist-packages/mpl_toolkits/__init__.py:2:
UserWarning: Module dateutil was already imported from
/usr/local/lib/python2.7/dist-packages/dateutil/__init__.pyc, but
/usr/lib/pymodules/python2.7 is being added to sys.path
 __import__('pkg_resources').declare_namespace(__name__)
I always get this warning, and IIRC when importing some MPL module possibly
too
I removed MPL 1.0.1 and upgraded to 1.1.0 but nothing changed in regard to
this warning
Also Google did not reveal much - it's listed on IPython mailing list, and
also in "pyroms" forum again when someone tried to import Basemap package.
So why is this and what can I do to avoid this warning when I import Basemap
Thanks

Dear all,
I couldn't find a function to plot venn diagram with python, so I 
written one for my daily use (with a lot inspirations from the internet 
and R). Hope it could be of any help to someone else, so I put it on 
github. The path to it is 
https://github.com/icetime/pyinfor/blob/master/venn.py .
I'm wondering if there is any chance that the function be included in 
matplotlib. I think matplotlib need a function for venn diagram.
Also, could someone kindly help to review the code, so I can make it 
better?
Any suggestions or comments will be greatly appreciated. Thanks a lot.
Best Regards,
Jianfeng