title: Python: No module named copy_reg
body: <p>I've been making a simple database in Python and I began working on it on a windows pc and have now adapted onto using a laptop with linux in it. </p>
  
  <p>The script I've made and have been using has been working perfectly on my windows pc,but I have recieved errors upon opening it in Linux. </p>
  
  <p>I have installed all the necessary modules for my script on both my computers.</p>
  
  <pre><code>"Traceback (most recent call last):
    File "/home/jay/Desktop/Pi/Database.py", line 169, in &lt;module&gt;
      Students_list = pickle.load(fin)
    File "/usr/lib/python2.7/pickle.py", line 1378, in load
      return Unpickler(file).load()
    File "/usr/lib/python2.7/pickle.py", line 858, in load
      dispatch[key](self)
    File "/usr/lib/python2.7/pickle.py", line 1090, in load_global
      klass = self.find_class(module, name)
    File "/usr/lib/python2.7/pickle.py", line 1124, in find_class
      __import__(module)
  ImportError: No module named copy_reg
  &gt;&gt;&gt; "
  </code></pre>