ImportError: No module named matplotlib.pyplot

[raczben]

I get the following error during running the example code from the README

Traceback (most recent call last):
  File "<string>", line 1, in <module>
ImportError: No module named matplotlib.pyplot

[raczben]

The root-cause is located in the init.py:

The problem occures if the ahakab is run from the non-default python interpreter.

Current snippet:

try:
    import matplotlib
    if os.system('python -c "import matplotlib.pyplot as plt;plt.figure()"'):
        # no display, use a display-less backend
        matplotlib.use('Agg')
except ImportError:
    # plotting.py will complain about this later on.
    pass

Suggestion:

import sys

try:
    import matplotlib
    if os.system(sys.executable + ' -c "import matplotlib.pyplot as plt;plt.figure()"'):
        # no display, use a display-less backend
        matplotlib.use('Agg')
except ImportError:
    # plotting.py will complain about this later on.
    pass