title: Python3 ImportError: No module named '_tkinter'
body: <p>On my Linux Mint 18, I've tried to install Python 3.6.1 beside my 3.5.2. 
  With these commands:</p>
  
  <pre><code>wget https://www.python.org/ftp/python/3.6.1/Python-3.6.1.tar.xz
  tar xJf Python-3.6.1.tar.xz 
  cd Python-3.6.1 
  ./configure 
  make 
  make install
  </code></pre>
  
  <p>The installation was successfully but, now, every time I try to import tkinter, I have the same error: </p>
  
  <pre><code>&gt;&gt;&gt; from tkinter import tk
  Traceback (most recent call last):
  File "&lt;stdin&gt;", line 1, in &lt;module&gt;
  File "/usr/local/lib/python3.5/tkinter/__init__.py", line 35, 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've no idea how to get rid of this issue, and how remove the 3.6.1</p>