Re: [Matplotlib-users] Unknown projection '3d' even with svn version?

2010-11-22 Thread Benjamin Root
On Thu, Nov 18, 2010 at 2:30 AM, Eric Emsellem eemse...@eso.org wrote:

 Ok problem(s) solved, thanks a lot for the efficient help (this also taught
 me how to go through the code more thoroughly)

 * for the record: I had a pylab.py in the site-packages directory, probably
 a left-over from some other installation, which was interfering with the
 pylab.py which should be the one under matplotlib/. I just removed it now
 and it works well.

 * and you were right, the funny try this was a left over of many tests I
 had done to track down the problem (mea culpa on that one)

 thanks again, all works beautifully (and consistently) now.

 cheers
 Eric


Glad to be of help.  Most of the time, odd behaviors like this tend to be
the result of conflicting installations.  Digging through them tends to be
difficult, but a very educating experience.

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Re: [Matplotlib-users] Unknown projection '3d' even with svn version?

2010-11-18 Thread Eric Emsellem
Ok problem(s) solved, thanks a lot for the efficient help (this also taught me 
how to go through the code more thoroughly)

* for the record: I had a pylab.py in the site-packages directory, probably a 
left-over from some other installation, which was interfering with the pylab.py 
which should be the one under matplotlib/. I just removed it now and it works 
well.

* and you were right, the funny try this was a left over of many tests I had 
done to track down the problem (mea culpa on that one)

thanks again, all works beautifully (and consistently) now.

cheers
Eric

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Re: [Matplotlib-users] Unknown projection '3d' even with svn version?

2010-11-17 Thread Eric Emsellem
yes, it looks like this is the right file (when I look at matplotlib.__file__)

Now tracing which routines are run when doing this, it looks like it looks for
projection in projections/__init__.py
after going through line 675 of figure.py

It looks like add_subplot of plt.figure() is not compatible in my matplotlib.

Eric

 Strange indeed.  Ok, what does matplotlib.__file__ say?  Does the
 filename match the path you are expecting?  At this point, I would also
 try putting print statements in the register code at the end of
 axes3d.py to see if that code path gets executed (can't see why not).
 
 Ben Root


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Re: [Matplotlib-users] Unknown projection '3d' even with svn version?

2010-11-17 Thread Benjamin Root
On Wed, Nov 17, 2010 at 2:32 AM, Eric Emsellem eemse...@eso.org wrote:

 yes, it looks like this is the right file (when I look at
 matplotlib.__file__)

 Now tracing which routines are run when doing this, it looks like it looks
 for
 projection in projections/__init__.py
 after going through line 675 of figure.py

 It looks like add_subplot of plt.figure() is not compatible in my
 matplotlib.

 Eric


No, that code path is correct.  The problem has to be that the registration
is not occurring correctly.  I would double-check that the filepath for
matplotlib.__file__ and mpl_toolkits.mplot3d.__file__ matches.  I am still
convinced that we have an installation issue.  My bet is that -- somehow --
mplot3d is being loaded from one version, while matplotlib is being loaded
from another version.

Another thing that might be complicating things is the use of ipython
-pylab.  If you aren't using pylab, then there really isn't much need to
call that.  Did you fully un-install matplotlib before building matplotlib
from svn?  If not, you might need to do a complete clean (package-wise and
build-wise) before trying again.

I notice that you are using OpenSUSE.  We have been having a number of
reports of problems from OpenSUSE users in the past month.  Almost all of
them appear to be packaging issues and not problems with matplotlib itself.
I don't know if this is the case here, but who knows?

I find this error to be fairly odd given how simple and fundamental the
algorithm is.  It is essentially a python dictionary containing name/class
pairs.  Kinda hard to break that.  If you can verify that the Axes3D object
is registering itself, and then the projection can't be found later, then
there remains only two possibilities.  First, that the dictionary being
checked is different from the dictionary used to register the Axes3D class.
Second, that the Axes3D entry got removed after being inserted.

Considering that I am unaware of any code that deregisters a projection, I
am inclined to believe that somehow we have different dictionary objects
being accessed.  This is the basis for my theory that the matplotlib
installation is wonky because the matplotlib.pyplot that you import from
your script might -- somehow -- be different from the matplotlib that is
imported from mplot3d.

Again, it makes little sense, but that is what is going through my mind
right now.  Anybody else have any thoughts?

Ben Root
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Re: [Matplotlib-users] Unknown projection '3d' even with svn version?

2010-11-17 Thread Eric Emsellem
Dear Ben
thanks a lot for this thoughful answer.


When I use only ipython and not ipython -pylab IT WORKS!!!

So this is a problem with ipython -pylab call...
Any thought of why this is?

I provide more info below

thanks for any help there.

Eric

P.S.: Here is the output of my setup:

In [1]: matplotlib.__file__
Out[1]: '/usr/lib64/python2.6/site-packages/matplotlib/__init__.pyc'

In [6]: mpl_toolkits.mplot3d.__file__
Out[6]: '/usr/lib64/python2.6/site-packages/mpl_toolkits/mplot3d/__init__.pyc'

A funny one is that I have to import mpl_toolkits first and then mplot3d, and
when I do this I get:
In [5]: from mpl_toolkits import mplot3d
try this

I am not sure the try this is meant to be there


P.P.S.:
Here is my detailed setup when I do ipython -pylab

matplotlib data path /usr/lib64/python2.6/site-packages/matplotlib/mpl-data
matplotlib version 1.0.0
verbose.level helpful
interactive is False
units is False
platform is linux2
Your PyGtk has set_interactive(), so you can use the
more stable single-threaded Gtk mode.
See https://bugs.launchpad.net/ipython/+bug/270856

backend GTKAgg version 2.17.0
Python 2.6.5 (r265:79063, Jul  5 2010, 11:46:13)


IPython 0.10 -- An enhanced Interactive Python.

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Re: [Matplotlib-users] Unknown projection '3d' even with svn version?

2010-11-17 Thread Benjamin Root
On Wed, Nov 17, 2010 at 1:54 PM, Eric Emsellem eemse...@eso.org wrote:

 Dear Ben
 thanks a lot for this thoughful answer.


 When I use only ipython and not ipython -pylab IT WORKS!!!

 So this is a problem with ipython -pylab call...
 Any thought of why this is?


Possibly ipython is somehow configured to pull pylab from a different
location, thereby loading a different matplotlib (and under a different
name) from what mplot3d loads.  Remember, python loads modules only once
during an execution, regardless of the number of times an import statement
appears.  With ipython -pylab, it implicitly does these loads for you
(except for mplot3d because it is a separate toolkit).  If ipython was
explicitly configured to look elsewhere for pylab, and then you come along
and tell it to import mplot3d using the normal python search path, it
*might* be possible that different matplotlibs got loaded.  Again, though,
this is complete and utter speculation, and has little basis in fact nor
evidence.



 I provide more info below

 thanks for any help there.

 Eric

 P.S.: Here is the output of my setup:

 In [1]: matplotlib.__file__
 Out[1]: '/usr/lib64/python2.6/site-packages/matplotlib/__init__.pyc'

 In [6]: mpl_toolkits.mplot3d.__file__
 Out[6]:
 '/usr/lib64/python2.6/site-packages/mpl_toolkits/mplot3d/__init__.pyc'


Clarity is important here.  Was this the same regardless of using '-pylab'?
Also, if you run ipython -pylab, what is the value of pylab.__file__ and
how does it compare to matplotlib.__file__ and
mpl_toolkits.mplot3d.__file__?


 A funny one is that I have to import mpl_toolkits first and then mplot3d,
 and
 when I do this I get:
 In [5]: from mpl_toolkits import mplot3d
 try this

 I am not sure the try this is meant to be there


It isn't, but I can not find it anywhere in the source files.  I have
checked the source code for matplotlib from the OpenSUSE repos and from our
svn repos.  It does not exist.  That line must be coming from another
package or you may have forgotten you added it (this has happened to me
before).



 P.P.S.:
 Here is my detailed setup when I do ipython -pylab

 matplotlib data path /usr/lib64/python2.6/site-packages/matplotlib/mpl-data
 matplotlib version 1.0.0
 verbose.level helpful
 interactive is False
 units is False
 platform is linux2
 Your PyGtk has set_interactive(), so you can use the
 more stable single-threaded Gtk mode.
 See https://bugs.launchpad.net/ipython/+bug/270856

 backend GTKAgg version 2.17.0
 Python 2.6.5 (r265:79063, Jul  5 2010, 11:46:13)


 IPython 0.10 -- An enhanced Interactive Python.

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[Matplotlib-users] Unknown projection '3d' even with svn version?

2010-11-16 Thread Eric Emsellem
Hi,

I have just installed the svn version of matplotlib and basemap + numpy from 
the 
svn repository of
http://download.opensuse.org/repositories/home:/ocefpaf/openSUSE_11.3/x86_64/

When I do:
===
ipython -pylab
(matplotlib 1.0.0, backend GTKAgg version 2.17.0, openSuse 11.3 x86_64)

import numpy as np
from mpl_toolkits.mplot3d import Axes3D
import matplotlib.pyplot as plt

fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')

I get a

ValueError: Unknown projection '3d'

I did the upgrade to the svn version because the previous one (which was 
already 
1.0) gave me the same message...

what's wrong here?
(looked at the web and couldn't find out a good solution, beyond the upgrade I 
did)

thanks in advance
Eric


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Re: [Matplotlib-users] Unknown projection '3d' even with svn version?

2010-11-16 Thread Benjamin Root
On Tue, Nov 16, 2010 at 10:48 AM, Eric Emsellem eemse...@eso.org wrote:

 Hi,

 I have just installed the svn version of matplotlib and basemap + numpy
 from the
 svn repository of

 http://download.opensuse.org/repositories/home:/ocefpaf/openSUSE_11.3/x86_64/

 When I do:
 ===
 ipython -pylab
 (matplotlib 1.0.0, backend GTKAgg version 2.17.0, openSuse 11.3 x86_64)

 import numpy as np
 from mpl_toolkits.mplot3d import Axes3D
 import matplotlib.pyplot as plt

 fig = plt.figure()
 ax = fig.add_subplot(111, projection='3d')
 
 I get a

 ValueError: Unknown projection '3d'

 I did the upgrade to the svn version because the previous one (which was
 already
 1.0) gave me the same message...

 what's wrong here?
 (looked at the web and couldn't find out a good solution, beyond the
 upgrade I did)

 thanks in advance
 Eric



Eric,

Could you please execute the following:

import matplotlib
print matplotlib.__version__

and report back what it says?  I suspect that when you installed the svn
version, the original version of matplotlib is still getting loaded.  The
projection='3d' feature is brand new to 1.0.0.

Ben Root
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Re: [Matplotlib-users] Unknown projection '3d' even with svn version?

2010-11-16 Thread Benjamin Root
On Tue, Nov 16, 2010 at 11:24 AM, Eric Emsellem eemse...@eso.org wrote:

 Dear Ben

 thanks a lot for the quick reply.

 I did that (and read some posts on the web) but no luck, as it says:

 1.0.0

 I in fact just went back to my openSuse 11.3 (Science repo) version because
 it went really wrong with scipy etc and I didn't want to mess up my setup.
 But still the same message with the Unknown projection.

 I have checked the axes3d.py in my mpl_toolkits and it has the name =
 '3d' at the beginning and the register at the end...

 ???


 Eric

  Could you please execute the following:

 import matplotlib
 print matplotlib.__version__

 and report back what it says?  I suspect that when you installed the svn
 version, the original version of matplotlib is still getting loaded.
 The projection='3d' feature is brand new to 1.0.0.

 Ben Root



Strange indeed.  Ok, what does matplotlib.__file__ say?  Does the filename
match the path you are expecting?  At this point, I would also try putting
print statements in the register code at the end of axes3d.py to see if that
code path gets executed (can't see why not).

Ben Root
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Re: [Matplotlib-users] Unknown projection '3d' even with svn version?

2010-11-16 Thread Eric Emsellem
Dear Ben

thanks a lot for the quick reply.

I did that (and read some posts on the web) but no luck, as it says:

1.0.0

I in fact just went back to my openSuse 11.3 (Science repo) version because it 
went really wrong with scipy etc and I didn't want to mess up my setup. But 
still the same message with the Unknown projection.

I have checked the axes3d.py in my mpl_toolkits and it has the name = '3d' at 
the beginning and the register at the end...

???

Eric

 Could you please execute the following:

 import matplotlib
 print matplotlib.__version__

 and report back what it says?  I suspect that when you installed the svn
 version, the original version of matplotlib is still getting loaded.
 The projection='3d' feature is brand new to 1.0.0.

 Ben Root

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