title: Python import failing due to 32bit
body: <p>I have installed the 64bit Python environment (verified from console that it is 64 bit):</p>
  
  <pre><code>Python 2.7.12 (v2.7.12:d33e0cf91556, Jun 27 2016, 15:24:40) [MSC v.1500 64 bit (AMD64)] on win32
  </code></pre>
  
  <p>The error I am getting is when calling the line </p>
  
  <pre><code>import matplotlib.pyplot as plt
  </code></pre>
  
  <p>and the error is</p>
  
  <pre><code>ImportError: DLL load failed: %1 is no valid Win32-application.
  </code></pre>
  
  <p>Now the matploblib I installed was from a file named <code>matplotlib-1.5.2-cp27-cp27m-win_amd64.whl</code> and should be the 64bit version of the library. How can I narrow down what's going on here? </p>
  
  <p>I downloaded the whl itself from <code>http://www.lfd.uci.edu/~gohlke/pythonlibs/</code></p>
  
  <p>Edit: The whole error message</p>
  
  <pre><code>    import matplotlib.pyplot as plt
    File "C:\Python27\lib\site-packages\matplotlib\pyplot.py", line 114, in &lt;module&gt;
      _backend_mod, new_figure_manager, draw_if_interactive, _show = pylab_setup()
  
    File "C:\Python27\lib\site-packages\matplotlib\backends\__init__.py", line 32, in pylab_setup
      globals(),locals(),[backend_name],0)
    File "C:\Python27\lib\site-packages\matplotlib\backends\backend_tkagg.py", line 6, in &lt;module&gt;
      from matplotlib.externals.six.moves import tkinter as Tk
    File "C:\Python27\lib\site-packages\matplotlib\externals\six.py", line 199, in load_module
      mod = mod._resolve()
    File "C:\Python27\lib\site-packages\matplotlib\externals\six.py", line 113, in
   _resolve
      return _import_module(self.mod)
    File "C:\Python27\lib\site-packages\matplotlib\externals\six.py", line 80, in
  _import_module
      __import__(name)
    File "C:\Python27\lib\lib-tk\Tkinter.py", line 38, in &lt;module&gt;
      import FixTk
    File "C:\Python27\lib\lib-tk\FixTk.py", line 68, in &lt;module&gt;
      import _tkinter
  ImportError: DLL load failed: %1 ist keine zulõssige Win32-Anwendung.
  </code></pre>