ImportError: No module named leveldb

[Ashutosh Mishra]

I have followed all the instructions of installing the Expresso module.

When I run, sh run_expresso.sh, it pops the following error:

Traceback (most recent call last):
  File "/home/ashutosh/Downloads/expresso-master/src/main/main.py", line 49, in <module>
    import centralData
  File "/home/ashutosh/Downloads/expresso-master/src/data/centralData.py", line 14, in <module>
    import dataView
  File "/home/ashutosh/Downloads/expresso-master/src/data/dataView.py", line 26, in <module>
    import DataHandler
  File "/home/ashutosh/Downloads/expresso-master/src/data/DataHandler.py", line 7, in <module>
    import readdb
  File "/home/ashutosh/Downloads/expresso-master/src/data/readdb.py", line 1, in <module>
    import leveldb
ImportError: No module named leveldb