make
./embdding

I am called from cpp
sys.version:  3.5.2 (default, Sep 14 2017, 22:51:06)
[GCC 5.4.0 20160609]
In cpp, method 1, five_squared: 25
In cpp, method 2, five_squared: 25
catch ZeroDivisionError in cpp
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ZeroDivisionError: division by zero
In python, going to sleep for 20 seconds