matplotlib-users Mailing List for matplotlib

On 26/10/11 22:31, Ignas Anikevicius wrote:
> ----
> Traceback (most recent call last):
> File "make.py", line 223, in <module>
> func()
> File "make.py", line 191, in all
> html()
> File "make.py", line 136, in html
> copy_if_out_of_date('../lib/matplotlib/mpl-data/matplotlibrc',
> '_static/matplotlibrc')
> File "make.py", line 111, in copy_if_out_of_date
> shutil.copyfile(original, derived)
> File "/usr/lib64/python2.7/shutil.py", line 81, in copyfile
> with open(src, 'rb') as fsrc:
> IOError: [Errno 2] No such file or directory:
> '../lib/matplotlib/mpl-data/matplotlibrc'
> ----
Sorry to have caused noise. Actually there were problems with building
examples and documentation, which were giving out different errors.
The above is with documentation and example building enabled, the
above is with docs disabled, but examples enabled:
----
copying
build-2.7/lib.linux-x86_64-2.7/matplotlib/mpl-data/lineprops.glade ->
/var/tmp/portage/dev-python/matplotlib-9999/temp/images/2.7/usr/lib64/python2.7/site-packages/matplotlib/mpl-data
copying build-2.7/lib.linux-x86_64-2.7/pylab.py ->
/var/tmp/portage/dev-python/matplotlib-9999/temp/images/2.7/usr/lib64/python2.7/site-packages
warning: install_lib: byte-compiling is disabled, skipping.
running install_egg_info
Writing
/var/tmp/portage/dev-python/matplotlib-9999/temp/images/2.7/usr/lib64/python2.7/site-packages/matplotlib-1.2.x-py2.7.egg-info
cp: omitting directory `examples/sample_data/lib/mpl_examples'
cp: omitting directory
`examples/sample_data/doc/mpl_toolkits/axes_grid/examples'
cp: omitting directory `examples/sample_data/doc/mpl_examples'
doins failed
----
Though I am still interested whether there is an issue with my system
setup, or are there any other problems?
Cheers,
Ignas A.
-- 
Q: Because it reverses the logical flow of conversation.
A: Why is putting a reply at the top of the message frowned upon?

Hello list,
I am sorry to be trying to solve my problems by just writing to the
list, but I could not think of any other ways to solve it as google
was not very verbose.
The build log part, which indicates a failure:
----
Traceback (most recent call last):
 File "make.py", line 223, in <module>
 func()
 File "make.py", line 191, in all
 html()
 File "make.py", line 136, in html
 copy_if_out_of_date('../lib/matplotlib/mpl-data/matplotlibrc',
'_static/matplotlibrc')
 File "make.py", line 111, in copy_if_out_of_date
 shutil.copyfile(original, derived)
 File "/usr/lib64/python2.7/shutil.py", line 81, in copyfile
 with open(src, 'rb') as fsrc:
IOError: [Errno 2] No such file or directory:
'../lib/matplotlib/mpl-data/matplotlibrc'
---
I was wondering if anybody could tell me what is wrong with my system?
I am using Gentoo and I am trying to build the git/master branch,
however git/v1.1.x also fails at the same place.
Could anybody help me, please? :)
Cheers,
Ignas A.
-- 
Q: Because it reverses the logical flow of conversation.
A: Why is putting a reply at the top of the message frowned upon?

On 10/26/2011 02:40 AM, Benjamin Root wrote:
>
>
> On Tuesday, October 25, 2011, jniemasik <nie...@gm... 
> <mailto:nie...@gm...>> wrote:
> >
> > Hi all,
> >
> > Google App Engine recently added an experimental Python 2.7 option, and
> > along with it, support for numpy.
> >
> > App Engine only allows pure python code to be uploaded. But now 
> that numpy
> > is available on the server, I was hoping I could create a pure 
> python build
> > of matplotlib that I can run on App Engine.
> >
> > Any suggestions on how to do this (existing tutorial, or at least which
> > backend to use, etc.)? Is it possible?
> >
> > Many thanks,
> > Jamie
>
> One thing I just noticed is that PIL is available.in 
> <http://available.in> the app engine I wonder if a PIL based backend 
> might be suitable for replacing the compiled _png.so used for writing 
> png images and maybe some other formats in the app engine?
With the pure Python backends (PS, PDF, SVG) you should be able to do 
most things, except actually rasterize an image... but since it's a 
webapp anyway, SVG should suffice and have it rendered in the client. 
Of course there are still pieces that would need to be rewritten in 
Python -- contouring, path simplification, geometry functions, font 
handling. I don't know if the PIL FontImage support would suffice as a 
replacement for the freetype wrapper we currently have -- otherwise 
reimplementing freetype in Python (even to just get the font metrics) is 
probably considerable work.
In other words, it's possible, but not as it stands without rewriting a 
lot of C++ code in Python.
Mike

On Tuesday, October 25, 2011, Dylan Temple <dyl...@um...> wrote:
> Mr. Root,
>
> Thank you! That got the aspect ratio between the axes to be what I
needed. I had one more question, however, when this aspect ratio is set the
actual plot is very small (it shrinks the y and z axes significantly,
obviously) however, I want to zoom in so that there as little unused space
within the axes instance as I can (currrently most of it is just unused
white space and the actual surface is plotted at the bottom). I have been
trying to set the ax.dist property, however, this does not seem to have the
effect I need. Is there some kind of method to set an initial zoom factor,
I have been searching and cannot find one. Thank you again for your help!
>
> Dylan Temple
>
Dylan,
This might be more an issue about the axes limits, but I am not sure. Could
you post an image of your plot so that I can see your problem?
Also, what values are you using for pbaspect?
Ben Root

On Tuesday, October 25, 2011, jniemasik <nie...@gm...> wrote:
>
> Hi all,
>
> Google App Engine recently added an experimental Python 2.7 option, and
> along with it, support for numpy.
>
> App Engine only allows pure python code to be uploaded. But now that
numpy
> is available on the server, I was hoping I could create a pure python
build
> of matplotlib that I can run on App Engine.
>
> Any suggestions on how to do this (existing tutorial, or at least which
> backend to use, etc.)? Is it possible?
>
> Many thanks,
> Jamie
One thing I just noticed is that PIL is available.in the app engine I
wonder if a PIL based backend might be suitable for replacing the compiled
_png.so used for writing png images and maybe some other formats in the app
engine?
Ben Root

On Tuesday, October 25, 2011, jniemasik <nie...@gm...> wrote:
>
> Hi all,
>
> Google App Engine recently added an experimental Python 2.7 option, and
> along with it, support for numpy.
>
> App Engine only allows pure python code to be uploaded. But now that
numpy
> is available on the server, I was hoping I could create a pure python
build
> of matplotlib that I can run on App Engine.
>
> Any suggestions on how to do this (existing tutorial, or at least which
> backend to use, etc.)? Is it possible?
>
> Many thanks,
> Jamie
Thats neat. I hadn't heard that numpy was made available.
The big obstacles are the compiled portions. That rules out the AGG backend
and any others that uses it. This would also impact some important polish
that makes mpl look good. There is - somewhere - an html5 backend, but I
haven't tried it.
The other obstacle are the other compiled parts that handle some of the
critical parts. For example, there is src/cntr.c for contouring, _image.cpp
for things like imshow(), nxutils.c, and _path.cpp, which provides the
widely used path calculation support. There are others as well, and they
all get wrapped by CXX.
Would the app engine support cython code? Maybe that could be the way to
minimize the cost of portting while not losing too much performance?
Cheers!
Ben Root

Hi all,
Google App Engine recently added an experimental Python 2.7 option, and
along with it, support for numpy.
App Engine only allows pure python code to be uploaded. But now that numpy
is available on the server, I was hoping I could create a pure python build
of matplotlib that I can run on App Engine.
Any suggestions on how to do this (existing tutorial, or at least which
backend to use, etc.)? Is it possible?
Many thanks,
Jamie
-- 
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On Tue, Oct 25, 2011 at 4:59 PM, Rich Shepard <rsh...@ap...> wrote:
> On 2011年10月25日, Paul Ivanov wrote:
>
>> I see you sent this just a few minutes ago - let's try to figure this out
>> interactively via IRC on #matplotlib channel on freenode. If you don't
>> have an IRC client handy, you can just use this web-based one.
>> http://webchat.freenode.net/?channels=matplotlib
>
> Paul, et al.:
>
>  Changing "underline " to "underline" fixed the problem. Now I have some
> legacy database connection issues since pysqlite3 is now included with
> python. Ergo, no more matplotlib complaints! (I suppose that removing the
> kidsd.* font had nothing to do with it, but I don't use that font in any
> case.)
Awesome! glad we finally got to the bottom of it. For the record - in
case others start seeing this error: "Found an unknown keyword in AFM
header (was Underline)", when the afm file in question splits up the
UnderlinePosition to be two words with a space between them, here's
the patch to fix that problem.
diff --git a/lib/matplotlib/afm.py b/lib/matplotlib/afm.py
index bb51634..127e63d 100644
--- a/lib/matplotlib/afm.py
+++ b/lib/matplotlib/afm.py
@@ -132,6 +132,7 @@ def _parse_header(fh):
 line = fh.readline()
 if not line: break
 line = line.rstrip()
+ line = line.replace("Underline ", "Underline")
 if line.startswith('Comment'): continue
 lst = line.split( ' ', 1 )
 #print '%-s\t%-d line :: %-s' % ( fh.name, len(lst), line )
I won't commit this to trunk, because it doesn't seem like anyone else
has run into this before - so maybe there are very few afm files out
there using this *incorrect*, as far as I can ascertain, version of
the AFM headers
best,
-- 
Paul Ivanov
314 address only used for lists, off-list direct email at:
http://pirsquared.org | GPG/PGP key id: 0x0F3E28F7