libsentosa.so: cannot open shared object file: No such file or directory

[henrywoo]

$pip install -U git+https://github.com/henrywoo/pysentosa.git

$python
Python 2.7.9 (default, Apr  2 2015, 15:33:21) 
[GCC 4.9.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from pysentosa.demo import run_demo
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/pysentosa/__init__.py", line 11, in <module>
    from merlion import Merlion
  File "/usr/local/lib/python2.7/dist-packages/pysentosa/merlion.py", line 7, in <module>
    from sentosa_ import tradingsystem
ImportError: libsentosa.so: cannot open shared object file: No such file or directory
>>>