matplotlib-users Mailing List for matplotlib

Hi All,
I am working on a platform that makes it difficult to provide repro cases... but I am hoping someone can shed some light on what I am seeing... Essentially, I have a program imports another script that* import matplotlib.pyplot as PLT... when it runs more than once then I get the following traceback:
Error in atexit._run_exitfuncs:
Traceback (most recent call last):
 File "C:\Python27\lib\atexit.py", line 24, in _run_exitfuncs
 func(*targs, **kargs)
 File "C:\Python27\lib\site-packages\matplotlib\_pylab_helpers.py", line 87, in
destroy_all
 for manager in list(Gcf.figs.values()):
AttributeError: 'NoneType' object has no attribute 'figs'
Error in sys.exitfunc:
Traceback (most recent call last):
 File "C:\Python27\lib\atexit.py", line 24, in _run_exitfuncs
 func(*targs, **kargs)
 File "C:\Python27\lib\site-packages\matplotlib\_pylab_helpers.py", line 87, in
destroy_all
 for manager in list(Gcf.figs.values()):
AttributeError: 'NoneType' object has no attribute 'figs'
This occurs because in this case the PLT functionality is NOT being used on the main script. If I edit the _pylab_helpers.py file and check to see if Gcf is None... if it is NOT then do the "destroy_all" logic... else it passes [code change below]... then the error disappears. I can make it disappear for many cases by creating a "dummy" figure so that Gcf gets created and therefore has some garbage to collect.
Any information you can give me would be greatly appreciated. TY,
MJ
[cid:image001.png@01CFE248.0F0A2700]

I'm using matplotlib to generate svg plots which I'm putting into an html
document. I noticed the plots aren't scaling the way I expect them to with
css in an html page, so, a little yak-shaving later, I found a particular
line in the source code that I think should change (or be changeable with
an option).
Basically, the svg backend specifies a width and height in pixels. If I
edit the svg file to set width and height to "100%", the figure scales with
css the way I expect.
Is there some way to do this without patching matplotlib (or editing every
generated svg by hand)? I'm attaching the one-line patch to make the svg
backend do what I want, but if someone wants the old behavior, perhaps
there could be a configuration option in matplotlib.rcParams?
 Vadim
-- 
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?

Hi Eric
Thanks for your reply and sorry for my late response. Thanks for the pointer. I will try to investigate the issue myself.
Best regards,
Jesper
> Den 30/09/2014 kl. 20.44 skrev Eric Firing <ef...@ha...>:
> 
>> On 2014年09月30日, 2:41 AM, Jesper Larsen wrote:
>> Hi matplotlib users,
>> 
>> Is it possible to disable antialiasing for a colorbar? If not directly
>> is it the possible to "postprocess" the axes instance to se antialiasing
>> for relevant elements?
> 
> The colorbar returns a Colorbar object, the "solids" attribute of which 
> is a Quadmesh; so you should be able to execute
> 
> cbar.solids.set_antialiased(False)
> 
> to turn off antialiasing. With a bit of testing, however, I am not 
> seeing any difference, so I'm not sure what is going on, and I don't 
> have time now to investigate.
> 
> Eric
> 
>> 
>> The reason I am asking is because I would like to produce a paletted png
>> (using PIL) of the colorbar without the risk of removing any important
>> colors in the process (in essence the output from matplotlib needs to
>> have less than 256 colors for this to work).
>> 
>> Best regards,
>> Jesper
>> 
>> 
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I agree with Skip.
On Wed, Oct 8, 2014 at 5:03 PM, Skip Montanaro <sk...@po...> wrote:
> On Sun, Oct 5, 2014 at 4:33 PM, Frank Lindner <fra...@gm...>
> wrote:
> > I would like to have a list of software, which uses matplotlib to extend
> > the wikipedia in some other languages.
>
> While that is a noble quest, unless you plan to maintain that list
> indefinitely, I think it might do more harm than good. Consider the
> case where today products A, B, and C use mpl. Two years down the
> road, B is defunct, but a new product, D, has come on the scene and
> uses mpl in ways never dreamed of before. If people are searching for
> tools which use Matplotlib, they may completely miss D.
>
> Wikipedia has an aura of authority, which in my mind pretty much
> requires that you be pretty Johnny-on-the-spot with updates to
> enumerated lists such as you propose. I personally think it would be
> better if the Matplotlib page in Wikipedia just refers to the main mpl
> site.
>
> My 2¢
>
> Skip
>
>
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* * * * * * * * http://www.mssl.ucl.ac.uk/~npmk/ * * * *
Dr. N.P.M. Kuin (n....@uc...)
phone +44-(0)1483 (prefix) -204927 (work)
mobile +44(0)7806985366 skype ID: npkuin
Mullard Space Science Laboratory – University College London –
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On Sun, Oct 5, 2014 at 4:33 PM, Frank Lindner <fra...@gm...> wrote:
> I would like to have a list of software, which uses matplotlib to extend
> the wikipedia in some other languages.
While that is a noble quest, unless you plan to maintain that list
indefinitely, I think it might do more harm than good. Consider the
case where today products A, B, and C use mpl. Two years down the
road, B is defunct, but a new product, D, has come on the scene and
uses mpl in ways never dreamed of before. If people are searching for
tools which use Matplotlib, they may completely miss D.
Wikipedia has an aura of authority, which in my mind pretty much
requires that you be pretty Johnny-on-the-spot with updates to
enumerated lists such as you propose. I personally think it would be
better if the Matplotlib page in Wikipedia just refers to the main mpl
site.
My 2¢
Skip

Hi
maybe you could also just run a search on github with: "import matplotlib" or "from matplotlib import pyplot"
You’ll get thousands of answers, but using the github search API https://developer.github.com/v3/search/,
 you could filter out this data (by project size or by project activity).
This would also allow you to know how many projects are using matplotlib and make some stats (at least on github).
Michka
On 8 oct. 2014, at 17:47, Benjamin Root <ben...@ou...> wrote:
> No clue, but here is one project to add to some such list: https://github.com/rillian/isee3-telemetry
> 
> On Sun, Oct 5, 2014 at 5:33 PM, Frank Lindner <fra...@gm...> wrote:
> hello everyone,
> I would like to have a list of software, which uses matplotlib to extend
> the wikipedia in some other languages. do you have an idea where I could
> find such lists?
> thank you!
> 
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> 
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Seems to me a weird kind of exercise. Bound to be incomplete to some
unknown degree. Whats the point then?
On Wed, Oct 8, 2014 at 4:47 PM, Benjamin Root <ben...@ou...> wrote:
> No clue, but here is one project to add to some such list:
> https://github.com/rillian/isee3-telemetry
>
> On Sun, Oct 5, 2014 at 5:33 PM, Frank Lindner <fra...@gm...>
> wrote:
>
>> hello everyone,
>> I would like to have a list of software, which uses matplotlib to extend
>> the wikipedia in some other languages. do you have an idea where I could
>> find such lists?
>> thank you!
>>
>>
>> ------------------------------------------------------------------------------
>> Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer
>> Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports
>> Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper
>> Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer
>>
>> http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.clktrk
>> _______________________________________________
>> Matplotlib-users mailing list
>> Mat...@li...
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>
>
>
>
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>
>
-- 
* * * * * * * * http://www.mssl.ucl.ac.uk/~npmk/ * * * *
Dr. N.P.M. Kuin (n....@uc...)
phone +44-(0)1483 (prefix) -204927 (work)
mobile +44(0)7806985366 skype ID: npkuin
Mullard Space Science Laboratory – University College London –
Holmbury St Mary – Dorking – Surrey RH5 6NT– U.K.

No clue, but here is one project to add to some such list:
https://github.com/rillian/isee3-telemetry
On Sun, Oct 5, 2014 at 5:33 PM, Frank Lindner <fra...@gm...>
wrote:
> hello everyone,
> I would like to have a list of software, which uses matplotlib to extend
> the wikipedia in some other languages. do you have an idea where I could
> find such lists?
> thank you!
>
>
> ------------------------------------------------------------------------------
> Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer
> Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports
> Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper
> Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer
>
> http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.clktrk
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>

Hi Paul,
Le 06/10/2014 22:27, Paul Hobson a écrit :
> I built a ProbabilityScale[2] which I hope one day will be in the 
> statsmodels library.
This just made me think that back in April I was also playing with 
matplotlib scales for probability distribution.
http://nbviewer.ipython.org/gist/pierre-haessig/7e3e6a818edeb6819708
It's actually a completely different idea, because I was doing a "logit" 
scale to get a good visualization of *tails* in a cumulated distribution 
plot. So I'm jumping on your thread in case anyone can give me some 
feedback on this idea. For example, I have no clue on how common this 
kind of plot is (and how useful it can be!!).
best,
Pierre
(and going back to your original question, I notice that I was indeed 
registering the scale...)