Install python-greenlet by entering the following commands in the terminal:
sudo apt update sudo apt install python-greenlet
Description:
Lightweight in-process concurrent programming
The greenlet package is a spin-off of Stackless, a version of CPython that supports micro-threads called "tasklets". Tasklets run pseudo-concurrently (typically in a single or a few OS-level threads) and are synchronized with data exchanges on "channels". . greenlet is the standalone package derived from the py lib, and is used by several non-blocking IO packages as a more flexible alternative to Python's built in coroutines.
Homepage: http://pypi.python.org/pypi/greenlet
Version: 0.4.12-2
Section: python