eri

Imported from a comment discussion on https://ru.stackoverflow.com/questions/1615035/%d0%9e%d1%88%d0%b8%d0%b1%d0%ba%d0%b0-%d0%b4%d0%b5%d0%ba%d0%be%d0%b4%d0%b8%d1%80%d0%be%d0%b2%d0%b0%d0%bd%d0%b8%d1%8f-%d0%b4%d0%b5%d1%81%d1%8f%d1%82%d0%b8%d1%87%d0%bd%d0%be%d0%b3%d0%be-%d1%87%d0%b8%d1%81%d0%bb%d0%b0-%d0%b2-%d0%b1%d0%b8%d0%bd%d0%b0%d1%80%d0%bd%d0%be%d0%b5-python-c