pocketsphinx no module named pocketsphinx found

[ldompeling at casema.nl]

Op dinsdag 12 juli 2016 10:00:51 UTC+2 schreef ldomp... at casema.nl:
> I try to run an example python file for pocketsphinx but I get this error: 
> 
> File "continuous_test.py", line 5, in <module>
>     from pocketsphinx.pocketsphinx import *
> ImportError: No module named pocketsphinx
> 
> Does somebody knows how to repair this.

I work it out with importing pocketsphinx and sphinxbase but I have an other error:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named Decoder

Is there a way to download the module Decoder somewhere?