I can not configure the python module through the official Nginx Unit documentation?

[avpdnepr]

2018/03/13 12:10:37 [info] 2220#2220 "example_python" application started
2018/03/13 12:10:37 [emerg] 2220#2220 Python failed to import module "wsgi"
2018/03/13 12:10:37 [notice] 1625#1625 process 2220 exited with code 1
2018/03/13 12:10:37 [warn] 1632#1632 failed to start application
"example_python"

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,279020,279020#msg-279020