title: No matching distribution found for tkinter
body: <p>I am stuck with this issue since last two days and I have tried every possible solution on the stack and github. It will be really great if someone can recommend. </p>
  
  <p>I am working with python 2.7 in a virtual environment on CentOS Linux release 7.3.1611. </p>
  
  <p>I am running a script that uses matplotlib.pyplot and on run gives this error </p>
  
  <pre><code>import  matplotlib.pyplot as plt
   File "/usr/local/packages/Python-2.7/lib/python2.7/lib-tk/Tkinter.py", line 39, in &lt;module&gt;
      import _tkinter # If this fails your Python may not be configured for Tk
  ImportError: No module named _tkinter 
  </code></pre>
  
  <p>I tried to install tkinter using - </p>
  
  <pre><code> pip install tkinter and it gave this error 
  Could not find a version that satisfies the requirement tkinter (from versions: )
  No matching distribution found for tkinter
  </code></pre>
  
  <p>then I even installed - </p>
  
  <pre><code>sudo yum install tk
  sudo yum install tk-devel
  sudo yum install tc 
  </code></pre>
  
  <p>and it says packages are already installed and <code>nothing to to</code></p>
  
  <p>I have set up my virtual environment again to see if I missed something but I cannot get anywhere. Please help! </p>