[Tutor] Myplotlab issue

[Mark Lawrence]

On 19/05/2015 16:58, bgenest at masonlive.gmu.edu wrote:
> Hello,
>
> I am currently working with a simple program in Python (just starting out) and am getting an error message:
>
> Traceback (most recent call last):
>    File "/Users/nomargfan661/Desktop/PythonProjects/chapter3/graphics.py", line 3
>      from pylab import plot,show
>    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pylab.py", line 1
>      from matplotlib.pylab import *
>    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/pylab.py", line 269
>      from matplotlib.pyplot import *
>    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/pyplot.py", line 29
>      from matplotlib.figure import Figure, figaspect
>    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/figure.py", line 36
>      from matplotlib.axes import Axes, SubplotBase, subplot_class_factory
>    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/axes/__init__.py", line 4
>      from ._subplots import *
>    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/axes/_subplots.py", line 10
>      from matplotlib.axes._axes import Axes
>    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/axes/_axes.py", line 17
>      from matplotlib.cbook import _string_to_bool, mplDeprecation
> ImportError: cannot import name _string_to_bool
>
> With this program, I am just trying to plot data points as written in a textbook from which I am learning.  I have installed everything properly (Python, VPython, numpy, and matplotlib (and as a result, pyplot).  The program is:
>
> from __future__ import division,print_function
>
> from pylab import plot,show
> y = [1.0,2.4,1.7,0.3,0.6,1.8]
>
> plot(y)
> show()
>
> I am running Python 2.7 and all modules are compatible with version 2.7 on Mac OS X 10.10.  I have tested other programs I have written which use VPython and numpy and I have no problems with those.  I only have one program using matplotlib, though, so I don’t know what’s wrong.  Would anybody happen to know how to help with fixing this issue?
>
> Thanks,
> Brandon
>

 From 
http://stackoverflow.com/questions/26289473/pycharm-error-while-importing-matplotlib-pyplot-as-plt 
"There is a package called six which matplotlib depends on. Check to 
make sure it's installed...".

-- 
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence