[Tutor] pyMVPA and OSError

Juli la.foma at gmail.com
Thu Feb 18 17:23:42 CET 2010


Dear All,

I am very much new to python, therefore I am likely to feel stupid
about asking this. I need pyMPVA module to play around with some fMRI
data. I have installed Python2.6 on Mac OS X Leopard. When I input >>>
import mvpa i get a deprecation warning, which is not a problem,
however when I try the following: >>> >>> import mvpa.suite as mvpa i
do not get a deprecating warning however I get a number of errors that
are as follows:
>>> import mvpa.suite as mvpa

Traceback (most recent call last):
  File "<pyshell#14>", line 1, in <module>
    import mvpa.suite as mvpa
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/mvpa/suite.py",
line 38, in <module>
    from mvpa.algorithms.cvtranserror import *
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/mvpa/algorithms/cvtranserror.py",
line 15, in <module>
    from mvpa.measures.base import DatasetMeasure
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/mvpa/measures/base.py",
line 31, in <module>
    from mvpa.clfs.stats import autoNullDist
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/mvpa/clfs/stats.py",
line 772, in <module>
    if externals.exists('pylab'):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/mvpa/base/externals.py",
line 432, in exists
    exec _KNOWN[dep]
  File "<string>", line 1, in <module>
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/mvpa/base/externals.py",
line 249, in __check_pylab
    import pylab as P
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/pylab.py",
line 1, in <module>
    from matplotlib.pylab import *
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/pylab.py",
line 206, in <module>
    from matplotlib import mpl  # pulls in most modules
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/mpl.py",
line 2, in <module>
    from matplotlib import axis
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/axis.py",
line 10, in <module>
    import matplotlib.font_manager as font_manager
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/font_manager.py",
line 1297, in <module>
    _rebuild()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/font_manager.py",
line 1288, in _rebuild
    fontManager = FontManager()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/font_manager.py",
line 980, in __init__
    self.ttffiles = findSystemFonts(paths) + findSystemFonts()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/font_manager.py",
line 337, in findSystemFonts
    for f in get_fontconfig_fonts(fontext):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/matplotlib/font_manager.py",
line 298, in get_fontconfig_fonts
    pipe = subprocess.Popen(['fc-list', '', 'file'], stdout=subprocess.PIPE)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/subprocess.py",
line 621, in __init__
    errread, errwrite)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/subprocess.py",
line 1126, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory

-----

I am not sure what the problem is (I do not know enough to pinpoint it
at a glance) and I would appreciate any feedback.

And I do once again apologize for asking stupid questions.


Kind Regards,
J.


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