title: matplotlib requires pyparsing
body: <p>I am trying to plot some data using matplotlib. When importing the library, I get the error:</p>
  
  <pre><code>ImportError: matplotlib requires pyparsing
  </code></pre>
  
  <p>I installed pyparsing using <code>easy_install pyparsing</code>, but the error keeps appearing.</p>
  
  <p>How can I solve this problem? Alternatively, is there any alternative to matplotlib to plot stuff with Python?</p>
  
  <p><strong>Edit:</strong> <code>sys.path</code> returns:</p>
  
  <pre><code>['', 'C:\\Python27\\lib\\site-packages\\spyderlib\\utils\\external', 'C:\\Windows\\system32\\python27.zip', 'C:\\Python27\\lib\\site-packages\\Orange\\orng', 'C:\\Python27\\DLLs', 'C:\\Python27\\lib', 'C:\\Python27\\lib\\plat-win', 'C:\\Python27\\lib\\lib-tk', 'C:\\Python27', 'C:\\Python27\\lib\\site-packages', 'C:\\Python27\\lib\\site-packages\\win32', 'C:\\Python27\\lib\\site-packages\\win32\\lib', 'C:\\Python27\\lib\\site-packages\\Pythonwin', 'C:\\Python27\\lib\\site-packages\\wx-2.8-msw-unicode', 'C:\\Python27\\lib\\site-packages\\IPython\\extensions']
  </code></pre>
  
  <p>Trying to import pyparsing returns the error:</p>
  
  <pre><code>Traceback (most recent call last):
  File "&lt;stdin&gt;", line 1, in &lt;module&gt;
    File "C:\Python27\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 540, in runfile
      execfile(filename, namespace)
    File "C:/Python27/Lib/site-packages/xy/simulation.py", line 4, in &lt;module&gt;
      import pyparsing
  ImportError: No module named pyparsing
  </code></pre>