title: Python pretty printer for debugging stdlib variables won't work
body: <p>I followed this post for debugging variables in a pretty way <a href="https://stackoverflow.com/questions/32411117/the-value-of-strings-doesnt-appear-in-eclipse-mars-cdt">The value of strings doesn&#39;t appear in eclipse mars CDT</a> </p>
  
  <p>however I ended up having an error message as follows:</p>
  
  <pre><code> File "/usr/share/gdb/auto-load/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.19-gdb.py", line 63, in &lt;module&gt;
      from libstdcxx.v6.printers import register_libstdcxx_printers
  ImportError: No module named 'libstdcxx'
  </code></pre>
  
  <p>How may I solve the problem?</p>