title: How to save the code object in file?
body: <p>How to save the code object (_ _ code _ _) in file? </p>
  
  <pre><code>&gt;&gt;&gt; c
  &lt;code object foo at 0x022E7660, file "&lt;console&gt;", line 1&gt;
  &gt;&gt;&gt; pickle.dump(c, f)
  Traceback (most recent call last):
    File "&lt;console&gt;", line 1, in &lt;module&gt;
  _pickle.PicklingError: Can't pickle &lt;class 'code'&gt;: attribute lookup builtins.code failed
  &gt;&gt;&gt; f.write(c)
  Traceback (most recent call last):
    File "&lt;console&gt;", line 1, in &lt;module&gt;
  TypeError: 'code' does not support the buffer interface
  </code></pre>