matplotlib-users

[Matplotlib-users] New user's question --- first run --- everything seems fine, got error msgs.

[<fri...@gm...>]

Dear all,

I'm an astronomy major college student in Beijing who recently switched to
Python for most of his homework in numeric analysis and data visualization
(and really loving Python). I run Python 2.5 with NumPy, SciPy
and matplotlib on a Fedora 7 Linux system. The matplotlib on my computer was
build from source but most of the required dependecies (incl. wxPython,
gtk2-devel things, etc.) were installed from the "official" Fedora
repository via yum. During compilation of matplotlib I set the BUILD_WXAGG
variable to 1 and left everything else untouched.

The compilation was smooth but the first test run seems not. After invoking
ipython with -pylab parameter I received the warning (and welcome) messages:

/usr/lib/python2.5/site-packages/IPython/Shell.py:709: DeprecationWarning:
The wxPython compatibility package is no longer automatically generated or
actively maintained. Please switch to the wx package as soon as possible.
import wxPython.wx as wx
Python 2.5 (r25:51908, Apr 10 2007, 10:29:13)
Type "copyright", "credits" or "license" for more information.

IPython 0.7.2 -- An enhanced Interactive Python.
? -> Introduction to IPython's features.
%magic -> Information about IPython's 'magic' % functions.
help -> Python's own help system.
object? -> Details about 'object'. ?object also works, ?? prints more.

Welcome to pylab, a matplotlib-based Python environment.
For more information, type 'help(pylab)'.

I don't understand what was said by the Deprecation Warning message. The
wxPython on my computer is up-to-date.

Then I threw a test command to ipython and things seem to be wrong again. A
typical session goes like this:

In [1]: # This is just a test plot. It generates a figure in the GUI with
some warning message.

In [2]: plot([1, 3, 8, 0])

** (python:15301): WARNING **: IPP request failed with status 1030

** (python:15301): WARNING **: IPP request failed with status 1030
Out[2]: [<matplotlib.lines.Line2D instance at 0x971648c>]

In [3]:


The correct figure was generated in a GUI but error messages pop
up whenever "plot" is used.

Currently I've got no idea about either warning message. They certainly told
me something but I can't even make sure whether there are things going
wrong! *shrug* So any hints?

Thanks in advance

Cong.

Re: [Matplotlib-users] New user's question --- first run --- everything seems fine, got error msgs.

[Michael D. <md...@st...>]

fri...@gm... wrote:
> I'm an astronomy major college student in Beijing who recently 
> switched to Python for most of his homework in numeric analysis and 
> data visualization (and really loving Python). I run Python 2.5 
> with NumPy, SciPy and matplotlib on a Fedora 7 Linux system. The 
> matplotlib on my computer was build from source but most of the 
> required dependecies (incl. wxPython, gtk2-devel things, etc.) were 
> installed from the "official" Fedora repository via yum. During 
> compilation of matplotlib I set the BUILD_WXAGG variable to 1 and left 
> everything else untouched.
>
> The compilation was smooth but the first test run seems not. After 
> invoking ipython with -pylab parameter I received the warning (and 
> welcome) messages:
>
> /usr/lib/python2.5/site-packages/IPython/Shell.py:709: 
> DeprecationWarning: The wxPython compatibility package is no longer 
> automatically generated or actively maintained. Please switch to the 
> wx package as soon as possible.
> import wxPython.wx as wx

This is actually coming from ipython, not matplotlib.  This indicates 
that version of ipython you have installed was written for an earlier 
version of wxPython.  It may still work despite this warning.  (Maybe an 
ipython expert can comment on that.)  The current release of ipython 
(0.8.1) has been updated and does not present this warning with the 
current release of wxPython (2.8.4.0).

If both your ipython and wxPython are from official Fedora packages, 
that's a version mismatch, and should probably be reported as a 
packaging bug to Fedora.  You may want to upgrade ipython if you can do 
so easily.

> Then I threw a test command to ipython and things seem to be wrong 
> again. A typical session goes like this:
>
> In [1]: # This is just a test plot. It generates a figure in the GUI 
> with some warning message.
>
> In [2]: plot([1, 3, 8, 0])
>
> ** (python:15301): WARNING **: IPP request failed with status 1030
>
> ** (python:15301): WARNING **: IPP request failed with status 1030

That's very strange.  AFAIK, IPP is "Internet Printing Protocol", and 
this message usually comes from CUPS or something.  My best guess is 
that when wxPython initializes its first window, it also initializes the 
wxWidgets printing stuff, and there's something underlying that that is 
broken on your system.  (Only a guess).  Again, it's possible that 
things could continue normally despite this warning.

I would look into your printer configuration to see if these messages 
can be eliminated.

> The correct figure was generated in a GUI but error messages pop 
> up whenever "plot" is used.

What are the error messages?  (Or do you just mean the ones above?)

>
> Currently I've got no idea about either warning message. They 
> certainly told me something but I can't even make sure whether there 
> are things going wrong! *shrug* So any hints?
>
> Thanks in advance

I think if the plots being generated are okay, both of these warnings 
could be benign, though annoying.

Cheers,
Mike

Re: [Matplotlib-users] New user's question --- first run --- everything seems fine, got error msgs.

[<fri...@gm...>]

Dear all: The first problem was fixed by upgrading to a recent version of
ipython. As for the second (IPP stuff) warning ... still pending but doesn't
doing harm currently.

Thank you all.

Cong.


On 8/2/07, Christopher Barker <Chr...@no...> wrote:
>
> fri...@gm... wrote:
> > /usr/lib/python2.5/site-packages/IPython/Shell.py:709:
> > DeprecationWarning: The wxPython compatibility package is no longer
> > automatically generated or actively maintained. Please switch to the wx
> > package as soon as possible.
>
> > I don't understand what was said by the Deprecation Warning message. The
> > wxPython on my computer is up-to-date.
>
> This isn't an issue with your wx package, it's an issue with how ipython
> or mpl is using wx -- are you using the latest versions of each of
> these? I'm pretty sure this was fixed in recent MPLs.
>
> However, it's a deprecation warning, so it should still work for now.
>
> > ** (python:15301): WARNING **: IPP request failed with status 1030
>
> I have no idea about this one -- hopefully it will be familiar to someone.
>
> -Chris
>
> --
> Christopher Barker, Ph.D.
> Oceanographer
>
> Emergency Response Division
> NOAA/NOS/OR&R            (206) 526-6959   voice
> 7600 Sand Point Way NE   (206) 526-6329   fax
> Seattle, WA  98115       (206) 526-6317   main reception
>
> Chr...@no...
>

Re: [Matplotlib-users] New user's question --- first run --- everything seems fine, got error msgs.

[Christopher B. <Chr...@no...>]

fri...@gm... wrote:
> Dear all: The first problem was fixed by upgrading to a recent version 
> of ipython. As for the second (IPP stuff) warning ... still pending but 
> doesn't doing harm currently.

A question to the wxPython mailing list may be in order for that one. AS 
a little test, trying running the enclosed, about-as-small-as-it-gets 
wxPython app, and see if you get the same warning.

-Chris


-- 
Christopher Barker, Ph.D.
Oceanographer

Emergency Response Division
NOAA/NOS/OR&R            (206) 526-6959   voice
7600 Sand Point Way NE   (206) 526-6329   fax
Seattle, WA  98115       (206) 526-6317   main reception

Chr...@no...

Re: [Matplotlib-users] New user's question --- first run --- everything seems fine, got error msgs.

[<fri...@gm...>]

Thank you Christopher that's great. wxPython working fine, no warnings.

Cong.

On 8/2/07, Christopher Barker <Chr...@no...> wrote:
>
> fri...@gm... wrote:
> > Dear all: The first problem was fixed by upgrading to a recent version
> > of ipython. As for the second (IPP stuff) warning ... still pending but
> > doesn't doing harm currently.
>
> A question to the wxPython mailing list may be in order for that one. AS
> a little test, trying running the enclosed, about-as-small-as-it-gets
> wxPython app, and see if you get the same warning.
>
> -Chris
>
>
> --
> Christopher Barker, Ph.D.
> Oceanographer
>
> Emergency Response Division
> NOAA/NOS/OR&R            (206) 526-6959   voice
> 7600 Sand Point Way NE   (206) 526-6329   fax
> Seattle, WA  98115       (206) 526-6317   main reception
>
> Chr...@no...
>
>