I'm getting "no module named ad" error in python
<p>I tried to import pocketsphinx and sphinx base but both of this shows error as "<code>no module name ad</code>" error I don't know what this "<code>ad</code>" is </p>

<p>code:</p>

<pre><code>&gt;&gt;&gt; import pocketsphinx

Traceback (most recent call last):
  File "&lt;pyshell#4&gt;", line 1, in &lt;module&gt;
    import pocketsphinx
  File "C:\Python27\lib\site-packages\pocketsphinx\__init__.py", line 35, in &lt;module&gt;
    from sphinxbase import *
  File "C:\Python27\lib\site-packages\sphinxbase\__init__.py", line 32, in &lt;module&gt;
    from .ad import *
  File "C:\Python27\lib\site-packages\sphinxbase\ad.py", line 35, in &lt;module&gt;
    _ad = swig_import_helper()
  File "C:\Python27\lib\site-packages\sphinxbase\ad.py", line 34, in swig_import_helper
    return importlib.import_module('_ad')
  File "C:\Python27\lib\importlib\__init__.py", line 37, in import_module
    __import__(name)
ImportError: No module named _ad
&gt;&gt;&gt; import sphinxbase

Traceback (most recent call last):
  File "&lt;pyshell#5&gt;", line 1, in &lt;module&gt;
    import sphinxbase
  File "C:\Python27\lib\site-packages\sphinxbase\__init__.py", line 32, in &lt;module&gt;
    from .ad import *
  File "C:\Python27\lib\site-packages\sphinxbase\ad.py", line 35, in &lt;module&gt;
    _ad = swig_import_helper()
  File "C:\Python27\lib\site-packages\sphinxbase\ad.py", line 34, in swig_import_helper
    return importlib.import_module('_ad')
  File "C:\Python27\lib\importlib\__init__.py", line 37, in import_module
    __import__(name)
ImportError: No module named _ad
</code></pre>