Problem installing latest matplotlib + numpy win32 binaries

Community matplotlib-users
1

Hello all,

My apologies if this has been brought up and solved before, but I
didn't see any solutions that made sense to me in the archives. Here
is my stack:
python 2.4 (from python.org)
numpy-1.0rc3
matplotlib-0.87.6

Everything seems to install fine. When I attempt to do 'from pylab
import *' I get the following error:

RuntimeError: module compiled against version 1000002 of C-API but this version
of numpy is 1000009

The import of the numpy version of the nxutils module,
_nsnxutils, failed. This is is either because numpy was
unavailable when matplotlib was compiled, because a dependency of
_nsnxutils could not be satisfied, or because the build flag for
this module was turned off in setup.py. If it appears that
_nsnxutils was not built, make sure you have a working copy of
numpy and then re-install matplotlib. Otherwise, the following
traceback gives more details:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Development\Python25\Lib\site-packages\pylab.py", line 1, in <module>

    from matplotlib.pylab import *
  File "C:\Development\Python25\Lib\site-packages\matplotlib\pylab.py", line 199
, in <module>
    import mlab #so I can override hist, psd, etc...
  File "C:\Development\Python25\Lib\site-packages\matplotlib\mlab.py", line 64,
in <module>
    import nxutils
  File "C:\Development\Python25\Lib\site-packages\matplotlib\nxutils.py", line 1
7, in <module>
    from matplotlib._ns_nxutils import *
ImportError: numpy.core.multiarray failed to import

I saw an e-mail in the archive that had a similar error, but the
solution was apparently to install scipy-0.51? I don't need or
necessarily want scipy.. is there a reason the latest win32 binaries
for matplotlib and numpy don't play together? Any help is appreciated.
Thanks!

- Todd

···

--
Todd Page
twpage@...287...

2

Todd Page wrote:

Hello all,

My apologies if this has been brought up and solved before, but I
didn't see any solutions that made sense to me in the archives. Here
is my stack:
python 2.4 (from python.org)
numpy-1.0rc3
matplotlib-0.87.6

Everything seems to install fine. When I attempt to do 'from pylab
import *' I get the following error:

RuntimeError: module compiled against version 1000002 of C-API but this version
of numpy is 1000009

If I remember correctly, mpl 0.87.6 is compiled against numpy-1.0.rc2, but rc3 has since come out with a C-API change so that it will not work with 0.87.6. So, give numpy-1.0.rc2 a try. numpy 1.0 is scheduled to come out soon, and I expect that shortly thereafter there will be an mpl release to match it. At that point the numpy C API should be genuinely stable and it should no longer be necessary to keep future mpl and numpy versions in lockstep.

Eric

3

Thanks Eric,

That confirms my suspicions. Does anyone know where I can get an rc2
binary for win32? I only see rc3 up on sourceforge.

PS: I think my original e-mail got posted to the list twice... if
that's the case I apologize for the (inadvertent) spam.

···

On 10/22/06, Eric Firing <efiring@...202...> wrote:

Todd Page wrote:
> Hello all,
>
> My apologies if this has been brought up and solved before, but I
> didn't see any solutions that made sense to me in the archives. Here
> is my stack:
> python 2.4 (from python.org)
> numpy-1.0rc3
> matplotlib-0.87.6
>
> Everything seems to install fine. When I attempt to do 'from pylab
> import *' I get the following error:
>
> RuntimeError: module compiled against version 1000002 of C-API but this version
> of numpy is 1000009

If I remember correctly, mpl 0.87.6 is compiled against numpy-1.0.rc2,
but rc3 has since come out with a C-API change so that it will not work
with 0.87.6. So, give numpy-1.0.rc2 a try. numpy 1.0 is scheduled to
come out soon, and I expect that shortly thereafter there will be an mpl
release to match it. At that point the numpy C API should be genuinely
stable and it should no longer be necessary to keep future mpl and numpy
versions in lockstep.

Eric

--
Todd Page
twpage@...287...