py27-matplotlib @2.1.0_1: ImportError: cannot import name cbook

[mfacorcoran]

I upgraded py27-matplotlib from py27-matplotlib @2.0.2_0+cairo+tkinter to py27-matplotlib @2.1.0_1+cairo+tkinter but got the following error when importing matplotlib or pylab:

% python 
Python 2.7.14 (default, Sep 22 2017, 00:05:22) 
[GCC 4.2.1 Compatible Apple LLVM 7.3.0 (clang-703.0.31)] on darwin 
Type "help", "copyright", "credits" or "license" for more information. 

Importing pyfits 
Could not import pylab 
Traceback (most recent call last): 
  File "/Users/corcoran/.pythonrc", line 34, in <module> 
    import matplotlib 
  File 
"/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/__init__.py", 
line 124, in <module> 
    from . import cbook 
ImportError: cannot import name cbook 

any idea how to resolve this?

thanks

Mike

[mf2k (Frank Schima)]

In the future, please use WikiFormatting.

[ryandesign (Ryan Carsten Schmidt)]

I doubt you are using MacPorts 2.1.0...

[mfacorcoran]

Replying to ryandesign:

I doubt you are using MacPorts 2.1.0...

Not sure what your comment means. I upgraded matplotlib to the latest version, which is 2.1.0_1. Here's what happens when it's activated:

% sudo port activate py27-matplotlib @2.1.0_1+cairo+tkinter
Password:
--->  Computing dependencies for py27-matplotlib
--->  Deactivating py27-matplotlib @2.0.2_0+cairo+tkinter
--->  Cleaning py27-matplotlib
--->  Activating py27-matplotlib @2.1.0_1+cairo+tkinter
--->  Cleaning py27-matplotlib
--->  Some of the ports you installed have notes:
  py27-matplotlib has the following notes:
    The default backend is the interactive Mac OS X backend. Different backends can be specified using the ~/.matplotlib/matplotlibrc file. More
    details regarding backends can be found in the matplotlib FAQ:

    http://matplotlib.sourceforge.net/faq/installing_faq.html#what-is-a-backend

[gs66w-corcoran:~] corcoran% python
Python 2.7.14 (default, Sep 22 2017, 00:05:22)
[GCC 4.2.1 Compatible Apple LLVM 7.3.0 (clang-703.0.31)] on darwin
Type "help", "copyright", "credits" or "license" for more information.

Importing pyfits
Could not import pylab
Traceback (most recent call last):
  File "/Users/corcoran/.pythonrc", line 34, in <module>
    import matplotlib
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/__init__.py", line 124, in <module>
    from . import cbook
ImportError: cannot import name cbook
>>> exit()

[seanfarley (Sean Farley)]

I've updated matplotlib to the newest version so I hope this is fixed. If not, then much like Ryan, I suspect something is installed outside of macports that is interfering.