Downgrading matplotlib throws bad key errors in spyder IDE
<p>I am running Python 2.7.3 on a Ubuntu 12.04 LTS distribution. I use spyder 2.9.1 as IDE. </p>

<p>As detailed in another <a href="https://stackoverflow.com/questions/37089403/spyder-does-not-run-python-scripts-after-matplotlib-upgrade">Stackoverflow post</a> of mine, I upgraded matplotlib from <strong>1.1</strong> to <strong>1.5.1</strong> only to find that there are acknowledged clashes between the IDE and matplotlib 1.5.1. I then downgraded matlplotlib from <strong>1.5.1</strong> to <strong>1.4.3</strong>, the previously stable version.</p>

<p>I gained back the core functionalities of spyder that went lost with the upgrade. However, now the console throws the following warnings:</p>

<pre><code>Python 2.7.3 (default, Jun 22 2015, 19:33:41) 
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.

Bad key "axes.prop_cycle" on line 2 in
/usr/local/lib/python2.7/dist-packages/matplotlib/mpl-data/stylelib/seaborn-colorblind.mplstyle.
You probably need to get an updated matplotlibrc file from
http://matplotlib.sf.net/_static/matplotlibrc or from the matplotlib source distribution

&lt;tens of these bad key notifications with the same suggestion&gt;

Imported NumPy 1.11.0, SciPy 0.9.0, Matplotlib 1.4.3
Type "scientific" for more details.
&gt;&gt;&gt; 
</code></pre>

<p>The file on <a href="http://matplotlib.sf.net/_static/matplotlibrc" rel="nofollow">http://matplotlib.sf.net/_static/matplotlibrc</a> is easily accessible. I have seen that this file is already present in my computer in 5 locations:</p>

<pre><code>me@computer:~$ locate matplotlibrc
/etc/matplotlibrc
/home/me/Downloads/programs/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/lib/python2.7/site-packages/matplotlib/mpl-data/matplotlibrc
/opt/paraview/ParaView-4.1.0-Linux-64bit/lib/paraview-4.1/lib/python2.7/site-packages/matplotlib/mpl-data/matplotlibrc
/opt/paraview/ParaView-4.3.1-Linux-64bit/lib/paraview-4.3/lib/python2.7/site-packages/matplotlib/mpl-data/matplotlibrc
/usr/local/lib/python2.7/dist-packages/matplotlib/mpl-data/matplotlibrc
</code></pre>

<p>The questions are:</p>

<ul>
<li>Is copying and pasting <code>matplotlibrc</code> all that I should do? (Strange that <code>pip</code> didn't bother about that...)</li>
<li>If so, should I update all of just some of those 5 occurrences? (The fact that another program, Paraview, uses it seems to complicate the matter...)</li>
</ul>

<p>Thanks for helping me out.</p>