run error in python ?!

[QAbot-zh]

I have compile the code. The bin file can run normally. But it exists error when I use python to import it.
The error information is as below:

➜  ~ python   
Python 2.7.12 (default, Apr 15 2020, 17:07:12) 
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import bulletsimpy
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/zxy/learning-code/bulletsim/bulletsimpy/__init__.py", line 1, in <module>
    from cbulletsimpy import *
ImportError: /home/zxy/learning-code/bulletsim/build/lib/cbulletsimpy.so: undefined symbol: _ZN5boost6python6detail11init_moduleER11PyModuleDefPFvvE
>>>