title: Importing seaborn in pycharm
body: <p>I have upgraded <code>seaborn</code> to <code>0.9.0</code> and <code>pycharm</code> seems to be unimpressed. </p>
  
  <p>A script <em>that works on the command line</em> is unable to proceed past:</p>
  
  <pre><code> import seaborn as sns
  </code></pre>
  
  <p>The following is thrown:</p>
  
  <pre><code>Traceback (most recent call last):
    File "/Applications/PyCharm CE.app/Contents/helpers/pydev/pydevd.py", line 1664, in &lt;module&gt;
      main()
    File "/Applications/PyCharm CE.app/Contents/helpers/pydev/pydevd.py", line 1658, in main
      globals = debugger.run(setup['file'], None, None, is_module)
    File "/Applications/PyCharm CE.app/Contents/helpers/pydev/pydevd.py", line 1068, in run
      pydev_imports.execfile(file, globals, locals)  # execute the script
    File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_imps/_pydev_execfile.py", line 18, in execfile
      exec(compile(contents+"\n", file, 'exec'), glob, loc)
    File "/git/uni/_psl/proj1/myMain.py", line 202, in &lt;module&gt;
      import seaborn as sns
    File "/usr/local/Cellar/python/3.6.4_4/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/seaborn/__init__.py", line 17, in &lt;module&gt;
      from .widgets import *
    File "/usr/local/Cellar/python/3.6.4_4/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/seaborn/widgets.py", line 8, in &lt;module&gt;
      from ipywidgets import interact, FloatSlider, IntSlider
    File "/Users/sboesch/Library/Python/3.6/lib/python/site-packages/ipywidgets/__init__.py", line 23, in &lt;module&gt;
      from IPython import get_ipython
    File "/Users/sboesch/Library/Python/3.6/lib/python/site-packages/IPython/__init__.py", line 54, in &lt;module&gt;
      from .core.application import Application
    File "/Users/sboesch/Library/Python/3.6/lib/python/site-packages/IPython/core/application.py", line 25, in &lt;module&gt;
      from IPython.core import release, crashhandler
    File "/Users/sboesch/Library/Python/3.6/lib/python/site-packages/IPython/core/crashhandler.py", line 27, in &lt;module&gt;
      from IPython.core import ultratb
    File "/Users/sboesch/Library/Python/3.6/lib/python/site-packages/IPython/core/ultratb.py", line 115, in &lt;module&gt;
      from IPython.core import debugger
    File "/Users/sboesch/Library/Python/3.6/lib/python/site-packages/IPython/core/debugger.py", line 46, in &lt;module&gt;
      from pdb import Pdb as OldPdb
    File "/usr/local/Cellar/python/3.6.4_4/Frameworks/Python.framework/Versions/3.6/lib/python3.6/pdb.py", line 136, in &lt;module&gt;
      class Pdb(bdb.Bdb, cmd.Cmd):
  AttributeError: module 'cmd' has no attribute 'Cmd'
  </code></pre>
  
  <p>Any tips appreciated.</p>