Import Error

graph-tool
1

Dear graph_tool users,

I try to use graph_tool on my Mac OS X 10.6.8.
I used Macport to install py-27-graph-tool and it seems to work perfectly.
But now, when I try to import graph_tool, I have successively 2 errors:

Python 2.7.6 (default, Nov 12 2013, 13:10:34)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin

1)

import graph_tool as gt

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/graph_tool/__init__.py", line 96, in <module>
    import scipy.stats
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/stats/__init__.py", line 324, in <module>
    from .stats import *
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/stats/stats.py", line 242, in <module>
    import scipy.special as special
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/special/__init__.py", line 531, in <module>
    from ._ufuncs import *
  File "__init__.pxd", line 155, in init scipy.special._ufuncs (scipy/special/_ufuncs.c:20976)
ValueError: numpy.dtype has the wrong size, try recompiling

2)

import graph_tool.all as gt

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/graph_tool/__init__.py", line 96, in <module>
    import scipy.stats
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/stats/__init__.py", line 324, in <module>
    from .stats import *
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/stats/stats.py", line 242, in <module>
    import scipy.special as special
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/special/__init__.py", line 533, in <module>
    from .basic import *
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/special/basic.py", line 12, in <module>
    from ._ufuncs import ellipkm1, mathieu_a, mathieu_b, iv, jv, gamma, psi, zeta, \
ImportError: cannot import name ellipkm1

Could you help me solve this problem?

Best regards,
Sandrine

attachment.html (3.37 KB)

2

Hi,

That kind of things happen when your numpy version is not the same as
the one used to compile graph-tool..

Maybe you can try to get the newer version of numpy and scipy (or older
ones if this problem appeared after you upgraded).

Hope it helps,

Guillaume

attachment.html (4.98 KB)

3

Dear graph_tool users,

I try to use graph_tool on my Mac OS X 10.6.8.
I used Macport to install py-27-graph-tool and it seems to work perfectly.
But now, when I try to import graph_tool, I have successively 2 errors:

Python 2.7.6 (default, Nov 12 2013, 13:10:34)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin

1)

*>>> import graph_tool as gt*
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/graph_tool/__init__.py", line 96, in <module>
    import scipy.stats
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/stats/__init__.py", line 324, in <module>
    from .stats import *
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/stats/stats.py", line 242, in <module>
    import scipy.special as special
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/special/__init__.py", line 531, in <module>
    from ._ufuncs import *
  File "__init__.pxd", line 155, in init scipy.special._ufuncs (scipy/special/_ufuncs.c:20976)
*ValueError: numpy.dtype has the wrong size, try recompiling*

2)

*import graph_tool.all as gt*

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/graph_tool/__init__.py", line 96, in <module>
    import scipy.stats
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/stats/__init__.py", line 324, in <module>
    from .stats import *
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/stats/stats.py", line 242, in <module>
    import scipy.special as special
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/special/__init__.py", line 533, in <module>
    from .basic import *
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/special/basic.py", line 12, in <module>
    from ._ufuncs import ellipkm1, mathieu_a, mathieu_b, iv, jv, gamma, psi, zeta, \
*ImportError: cannot import name ellipkm1*

// Could you help me solve this problem?

Do you observe the sample problems simply by importing scipy, without
graph-tool? For instance:

    >>> import scipy
    >>> import scipy.stats

If you observe the same problem, then clearly the problem would be with
scipy. You should try simply re-installing it.

If you still have the same problems afterwards, I suggest you contact
the macports maintainers, and report a bug:

    https://trac.macports.org/auth/login/?next=/newticket

Best,
Tiago

4

Hello,

Thank you for your suggestions. Actually, there were 2 versions
of scipy and numpy installed on my computer.
So, I uninstalled and re-install everything (scipy, numpy, graph_tool).
Unfortunately, I observe the same problem.

I will now contact the macports maintainers, as you suggest.

Best regards,

Sandrine

attachment.html (4.47 KB)