How To Install python2-psycogreen on CentOS 7
Introduction
In this tutorial we learn how to install python2-psycogreen on CentOS 7.
What is python2-psycogreen
The psycogreen package enables psycopg2 to work with co-routine libraries, using asynchronous calls internally but offering a blocking interface so that regular code can run unmodified. Psycopg offers co-routines support since release 2.2. Because the main module is a C extension it cannot be monkey-patched to become co-routine-friendly. Instead it exposes a hook that co-routine libraries can use to install a function integrating with their event scheduler. Psycopg will call the function whenever it executes a libpq call that may block. Psycogreen is a collection of “wait callbacks” useful to integrate Psycopg with different co-routine libraries.
We can use yum or dnf to install python2-psycogreen on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install python2-psycogreen.
Install python2-psycogreen on CentOS 7 Using yum
Update yum database with yum using the following command.
After updating yum database, We can install python2-psycogreen using yum by running the following command:
Install python2-psycogreen on CentOS 7 Using dnf
If you don’t have dnf installed you can install DNF on CentOS 7 first.
Update yum database with dnf using the following command.
After updating yum database, We can install python2-psycogreen using dnf by running the following command:
How To Uninstall python2-psycogreen on CentOS 7
To uninstall only the python2-psycogreen package we can use the following command:
References
Summary
In this tutorial we learn how to install python2-psycogreen on CentOS 7 using yum and dnf.