matplotlib-devel Mailing List for matplotlib

Same thing:

>>> import cairo
>>> print cairo.version
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'version'

kj


On Thu, Nov 11, 2010 at 3:09 PM, Eric Firing <ef...@ha...> wrote:

> On 11/11/2010 09:54 AM, Kynn Jones wrote:
> > On my system, the following 3-line script
> >
> > *import matplotlib
> > matplotlib.use('Cairo')
> > import matplotlib.pyplot as plt
> > *
> > fails with the error:
> >
> > * File "<path-to-mpl-egg>/matplotlib/backends/backend_cairo.py", line
> > 34, in <module>
> >     if cairo.version_info < _version_required:
> > AttributeError: 'module' object has no attribute 'version_info'
> > *
> > It's easy to see that the bug is in matplotlib.backends.backend_cairo;
> > here's the part of the code that produces the error:
> >
> > *try:
> >    import cairo
> > except ImportError:
> >    raise ImportError("Cairo backend requires that pycairo is installed.")
> >
> > _version_required = (1,2,0)
> > if cairo.version_info < _version_required:
> >    raise ImportError ("Pycairo %d.%d.%d is installed\n"
> > "Pycairo %d.%d.%d or later is required"
> >                      % (cairo.version_info + _version_required))
> > *
> > Indeed, the cairo module has no version_info attribute:
> >
> > *% python
> > Python 2.6.1 (r261:67515, Feb 11 2010, 00:51:29)
> > [GCC 4.2.1 (Apple Inc. build 5646)] on darwin
> >> >> import cairo
> >> >> cairo.version_info
> > Traceback (most recent call last):
> >   File "<stdin>", line 1, in <module>
> > AttributeError: 'module' object has no attribute 'version_info'
> > *
>
> Strange.  Looking at the source of 1.8.10 from the py2cairo git repo, I
> see version_info as well as version being included in the module via
> cairomodule.c.
>
> > (FWIW, the version of pycairo I have installed is 1.8.10 .)
>
> What happens if you do:
>
> import cairo
> print cairo.version
>
>
> Eric
>
> >
> > So matplotlib.backends.backend_cairo needs some other way to determine
> > the version number for the cairo module, but I don't understand this
> > module sufficiently well to provide a patch for this bug.
> >
> > ~kj
> >
>
>
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On 11/11/2010 09:54 AM, Kynn Jones wrote:
> On my system, the following 3-line script
>
> *import matplotlib
> matplotlib.use('Cairo')
> import matplotlib.pyplot as plt
> *
> fails with the error:
>
> * File "<path-to-mpl-egg>/matplotlib/backends/backend_cairo.py", line
> 34, in <module>
>     if cairo.version_info < _version_required:
> AttributeError: 'module' object has no attribute 'version_info'
> *
> It's easy to see that the bug is in matplotlib.backends.backend_cairo;
> here's the part of the code that produces the error:
>
> *try:
>    import cairo
> except ImportError:
>    raise ImportError("Cairo backend requires that pycairo is installed.")
>
> _version_required = (1,2,0)
> if cairo.version_info < _version_required:
>    raise ImportError ("Pycairo %d.%d.%d is installed\n"
> "Pycairo %d.%d.%d or later is required"
>                      % (cairo.version_info + _version_required))
> *
> Indeed, the cairo module has no version_info attribute:
>
> *% python
> Python 2.6.1 (r261:67515, Feb 11 2010, 00:51:29)
> [GCC 4.2.1 (Apple Inc. build 5646)] on darwin
>> >> import cairo
>> >> cairo.version_info
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
> AttributeError: 'module' object has no attribute 'version_info'
> *

Strange.  Looking at the source of 1.8.10 from the py2cairo git repo, I 
see version_info as well as version being included in the module via 
cairomodule.c.

> (FWIW, the version of pycairo I have installed is 1.8.10 .)

What happens if you do:

import cairo
print cairo.version


Eric

>
> So matplotlib.backends.backend_cairo needs some other way to determine
> the version number for the cairo module, but I don't understand this
> module sufficiently well to provide a patch for this bug.
>
> ~kj
>

On my system, the following 3-line script

*import matplotlib
matplotlib.use('Cairo')
import matplotlib.pyplot as plt
*
fails with the error:

*  File "<path-to-mpl-egg>/matplotlib/backends/backend_cairo.py", line 34,
in <module>
   if cairo.version_info < _version_required:
AttributeError: 'module' object has no attribute 'version_info'
*
It's easy to see that the bug is in matplotlib.backends.backend_cairo;
here's the part of the code that produces the error:

*try:
  import cairo
except ImportError:
  raise ImportError("Cairo backend requires that pycairo is installed.")

_version_required = (1,2,0)
if cairo.version_info < _version_required:
  raise ImportError ("Pycairo %d.%d.%d is installed\n"
                    "Pycairo %d.%d.%d or later is required"
                    % (cairo.version_info + _version_required))
*
Indeed, the cairo module has no version_info attribute:

*% python
Python 2.6.1 (r261:67515, Feb 11 2010, 00:51:29)
[GCC 4.2.1 (Apple Inc. build 5646)] on darwin
>>> import cairo
>>> cairo.version_info
Traceback (most recent call last):
 File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'version_info'
*
(FWIW, the version of pycairo I have installed is 1.8.10 .)

So matplotlib.backends.backend_cairo needs some other way to determine the
version number for the cairo module, but I don't understand this module
sufficiently well to provide a patch for this bug.

~kj

On Wed, Nov 10, 2010 at 10:09 PM, Benjamin Root <ben...@ou...> wrote:
> FYI,
>
> I was just looking through the package list for the newly released RHEL 6.
> matplotlib version 0.99.1.2 has been included, along with numpy 1.3 and
> python 2.6.5.  I did not see scipy and ipython, however.
>
> Congrats for fiinally getting included in RHEL

Thanks for letting us know -- frankly I'm astonished it took this
long.  We've been in debian for years.  I'm even more surprised by the
omission of ipython and scipy -- both of these packages have been in
debian for at least 7 years, i think.  I guess it's true what they
say: the enterprise moves slowly!

JDH

FYI,

I was just looking through the package list for the newly released RHEL 6.
matplotlib version 0.99.1.2 has been included, along with numpy 1.3 and
python 2.6.5.  I did not see scipy and ipython, however.

Congrats for fiinally getting included in RHEL!

Ben Root