Unable to run Example Application

[EsakkiSundar]

Hi,
Im running ubuntu 18.04, with python2.7.17 and have setup Kaldi as per the installation instruction available in their website. When I try to run your example application, python kaldi_decode_wav.py -v demo?.wav, I'm getting the below error. Kindly help to resolve this.

Traceback (most recent call last):
  File "kaldi_decode_wav.py", line 36, in <module>
    from kaldiasr.nnet3 import KaldiNNet3OnlineModel, KaldiNNet3OnlineDecoder
ImportError: No module named kaldiasr.nnet3