matplotlib-users Mailing List for matplotlib

Thanks for the support.

I uninstalled numarray, and then compiled/installed most recent numpy and 
matplotlib from the tarballs.

And I am happy to announce I can now perform the mundane task of plotting 
barcharts and histograms. :)

Thanks again everyone,
Suresh

On Thu, 26 Oct 2006, Eric Firing wrote:

> Suresh,
>
> This is baffling, and particularly annoying for someone just starting out 
> with mpl.  I don't think there is any problem with the barchart code--the 
> demo works for me with numarray--and I don't see anything obvious in the 
> traceback. Are your matplotlib and numarray both from Mandriva packages?
>
> I would be inclined to download numpy and matplotlib as nice, fresh tarballs, 
> uninstall any previous versions (including numarray), build and install 
> numpy, and then do the same for matplotlib.  If you have not done this before 
> you will probably trip over some missing -devel packages (furnishing header 
> files for python, gtk, etc), but once all that is straightened out it should 
> go smoothly.
>
> Eric

	Hi all,

	I am trying to build Matplotlib 0.87.7 on an RHEL 4.4-derived system, 
with Python 2.3.4. I am running into a weird problem. When I do "python 
setup.py build", I get the following error:

gcc: src/_gtkagg.cpp
In file included from /usr/include/python2.3/Python.h:8,
                  from /usr/include/pygtk-2.0/pygobject.h:5,
                  from src/_gtkagg.cpp:11:
/usr/include/python2.3/pyconfig.h:850:1: warning: "_POSIX_C_SOURCE" 
redefined
In file included from /usr/include/string.h:26,
                  from 
/usr/lib/gcc/i386-redhat-linux/3.4.6/../../../../include/c++/3.4.6/cstring:51,
                  from src/_gtkagg.cpp:2:
/usr/include/features.h:150:1: warning: this is the location of the 
previous definition
In file included from src/_gtkagg.cpp:11:
/usr/include/pygtk-2.0/pygobject.h:140: error: expected `,' or `...' 
before "typename"
/usr/include/pygtk-2.0/pygobject.h:147: error: expected `,' or `...' 
before "typename"
In file included from /usr/include/python2.3/Python.h:8,
                  from /usr/include/pygtk-2.0/pygobject.h:5,
                  from src/_gtkagg.cpp:11:
/usr/include/python2.3/pyconfig.h:850:1: warning: "_POSIX_C_SOURCE" 
redefined
In file included from /usr/include/string.h:26,
                  from 
/usr/lib/gcc/i386-redhat-linux/3.4.6/../../../../include/c++/3.4.6/cstring:51,
                  from src/_gtkagg.cpp:2:
/usr/include/features.h:150:1: warning: this is the location of the 
previous definition
In file included from src/_gtkagg.cpp:11:
/usr/include/pygtk-2.0/pygobject.h:140: error: expected `,' or `...' 
before "typename"
/usr/include/pygtk-2.0/pygobject.h:147: error: expected `,' or `...' 
before "typename"



	So I did a google search, and found someone recommending that "#include 
<Python.h>" be prepended to the offending file. I have prepended it to 
src/_gtkagg.cpp, did a clean, and run the build again. The error 
changed, and the "_POSIX_C_SOURCE" problem went away, but the build is 
still failing, at that same file:

gcc: src/_gtkagg.cpp
In file included from src/_gtkagg.cpp:11:
/usr/include/pygtk-2.0/pygobject.h:140: error: expected `,' or `...' 
before "typename"
/usr/include/pygtk-2.0/pygobject.h:147: error: expected `,' or `...' 
before "typename"
In file included from src/_gtkagg.cpp:11:
/usr/include/pygtk-2.0/pygobject.h:140: error: expected `,' or `...' 
before "typename"
/usr/include/pygtk-2.0/pygobject.h:147: error: expected `,' or `...' 
before "typename"



	Does anyone have an idea of what is going wrong here? I could really 
use some help, as I am totally stumped.

	Many thanks in advance.

Yes, both are mandriva packages:

python-matplotlib-0.87.4-2mdv2007.0
python-numarray-1.5.2-1mdv2007.0

Given there isnt a python-numpy package for x64-64 right now (there is a 
devel one, so not sure why no main package), I will go ahead and try to 
build from scratch.

Thanks,
Suresh



On Thu, 26 Oct 2006, Eric Firing wrote:

> Suresh,
>
> This is baffling, and particularly annoying for someone just starting out 
> with mpl.  I don't think there is any problem with the barchart code--the 
> demo works for me with numarray--and I don't see anything obvious in the 
> traceback. Are your matplotlib and numarray both from Mandriva packages?
>
> I would be inclined to download numpy and matplotlib as nice, fresh tarballs, 
> uninstall any previous versions (including numarray), build and install 
> numpy, and then do the same for matplotlib.  If you have not done this before 
> you will probably trip over some missing -devel packages (furnishing header 
> files for python, gtk, etc), but once all that is straightened out it should 
> go smoothly.
>
> Eric
>

On Fri, 2006-10-27 at 11:58 +0200, Trond Danielsen wrote:
> 2006/10/27, Robert Elsner <ml...@re...>:
> > Hello Everybody,
> >
> > I use the usual scipy + numpy + matplotlib combination for my daily
> > work. Unfortunately after switching to Fedora Core 6 (from FC5) I am
> > unable to compile matplotlib 0.87.6 on my system.
> >
> 
> I am sure you allready know this, but matplotlib 0.87.6 is available
> from fedora extra.
> 
> Best regards,
> Trond
> 

Yes I noticed that 0.87.6 is available from fedora-extras for FC6. But
unfortunately this one is unable to work with numpy 1.0 final. But
thanks nonetheless ;).
And as Chuck pointed out - he managed to compile from svn. I tried the
new 0.87.7 and that one finally compiled.
I ran some quick tests and it seems to work well.
So thanks for your help @Chuck,Trond.

Robert

2006/10/27, Robert Elsner <ml...@re...>:
> Hello Everybody,
>
> I use the usual scipy + numpy + matplotlib combination for my daily
> work. Unfortunately after switching to Fedora Core 6 (from FC5) I am
> unable to compile matplotlib 0.87.6 on my system.
>

I am sure you allready know this, but matplotlib 0.87.6 is available
from fedora extra.

Best regards,
Trond

2006/10/26, Trond Danielsen <tro...@gm...>:
>
> I will have to check this, but I do not think that is the problem. The
> data is used in another algorithm which locates the correlation
> maximum between two sliding windows (to detect the start of a data
> msg), and the algorithm returns the correct result, only the plot is
> wrong.

I tried this again on Fedora Core 6, and the problem seems to be solved.

-- 
Trond Danielsen

Suresh,

This is baffling, and particularly annoying for someone just starting 
out with mpl.  I don't think there is any problem with the barchart 
code--the demo works for me with numarray--and I don't see anything 
obvious in the traceback. Are your matplotlib and numarray both from 
Mandriva packages?

I would be inclined to download numpy and matplotlib as nice, fresh 
tarballs, uninstall any previous versions (including numarray), build 
and install numpy, and then do the same for matplotlib.  If you have not 
done this before you will probably trip over some missing -devel 
packages (furnishing header files for python, gtk, etc), but once all 
that is straightened out it should go smoothly.

Eric

sto...@ya... wrote:
> I receive an error when trying to plot barcharts.  To confirm it was 
> nothing to do with my code, I tried running one of the demos provided and 
> received the same error:
> 
> $ python barchart_demo.py
> Traceback (most recent call last):
>    File "barchart_demo.py", line 11, in ?
>      p1 = bar(ind, menMeans, width, color='r', yerr=menStd)
>    File "/usr/lib64/python2.4/site-packages/matplotlib/pylab.py", line 
> 1641, in bar
>      ret =  gca().bar(*args, **kwargs)
>    File "/usr/lib64/python2.4/site-packages/matplotlib/axes.py", line 2485, 
> in bar
>      xerr = asarray([xerr]*nbars, Float)
>    File "/usr/lib64/python2.4/site-packages/numarray/numarraycore.py", line 
> 434, in asarray
>      return array(seq, type=type, typecode=typecode, copy=0, dtype=dtype)
>    File "/usr/lib64/python2.4/site-packages/numarray/numarraycore.py", line 
> 417, in array
>      return fromlist(sequence,type,shape)
>    File "/usr/lib64/python2.4/site-packages/numarray/numarraycore.py", line 
> 267, in fromlist
>      arr.fromlist(seq)
> ValueError: Invalid sequence.
> 
> Can't figure out the issue in numarray it is encountering.
> 
> I am brand spanking new to matplotlib and using python for scientific 
> computing (amazing product; can't believe I didn't know about it before.) 
> and would appreciate some help in getting started.  I apologise if it's 
> something basic (couldn't find anything on google).
> 
> python 2.4.3
> matplotlib 0.87.4
> numarray-1.5.2
> (Mandriva 2007 x64-64)
> 
> Thanks,
> Suresh
> 
> -------------------------------------------------------------------------
> Using Tomcat but need to do more? Need to support web services, security?
> Get stuff done quickly with pre-integrated technology to make your job easier
> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users