How To Install python3-flask on CentOS 8

python3-flask is A micro-framework for Python based on Werkzeug, Jinja 2 and good intentions

Introduction

In this tutorial we learn how to install python3-flask on CentOS 8.

What is `python3-flask`

Flask is called a “micro-framework” because the idea to keep the core simple but extensible. There is no database abstraction layer, no form validation or anything else where different libraries already exist that can handle that. However Flask knows the concept of extensions that can add this functionality into your application as if it was implemented in Flask itself. There are currently extensions for object relational mappers, form validation, upload handling, various open authentication technologies and more. Python 3 version.

We can use yum or dnf to install python3-flask on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install python3-flask.

Install python3-flask on CentOS 8 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install python3-flask using dnf by running the following command:

sudo dnf -y install python3-flask

Install python3-flask on CentOS 8 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install python3-flask using yum by running the following command:

sudo yum -y install python3-flask

How To Uninstall python3-flask on CentOS 8

To uninstall only the python3-flask package we can use the following command:

sudo dnf remove python3-flask

python3-flask Package Contents on CentOS 8

/usr/bin/flask
/usr/bin/flask-3
/usr/bin/flask-3.6
/usr/lib/python3.6/site-packages/Flask-0.12.2-py3.6.egg-info
/usr/lib/python3.6/site-packages/Flask-0.12.2-py3.6.egg-info/PKG-INFO
/usr/lib/python3.6/site-packages/Flask-0.12.2-py3.6.egg-info/SOURCES.txt
/usr/lib/python3.6/site-packages/Flask-0.12.2-py3.6.egg-info/dependency_links.txt
/usr/lib/python3.6/site-packages/Flask-0.12.2-py3.6.egg-info/entry_points.txt
/usr/lib/python3.6/site-packages/Flask-0.12.2-py3.6.egg-info/not-zip-safe
/usr/lib/python3.6/site-packages/Flask-0.12.2-py3.6.egg-info/requires.txt
/usr/lib/python3.6/site-packages/Flask-0.12.2-py3.6.egg-info/top_level.txt
/usr/lib/python3.6/site-packages/flask
/usr/lib/python3.6/site-packages/flask/__init__.py
/usr/lib/python3.6/site-packages/flask/__main__.py
/usr/lib/python3.6/site-packages/flask/__pycache__
/usr/lib/python3.6/site-packages/flask/__pycache__/__init__.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/__init__.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/__main__.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/__main__.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/_compat.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/_compat.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/app.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/app.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/blueprints.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/blueprints.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/cli.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/cli.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/config.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/config.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/ctx.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/ctx.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/debughelpers.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/debughelpers.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/exthook.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/exthook.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/globals.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/globals.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/helpers.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/helpers.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/json.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/json.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/logging.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/logging.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/sessions.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/sessions.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/signals.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/signals.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/templating.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/templating.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/testing.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/testing.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/views.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/views.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/wrappers.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/__pycache__/wrappers.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/_compat.py
/usr/lib/python3.6/site-packages/flask/app.py
/usr/lib/python3.6/site-packages/flask/blueprints.py
/usr/lib/python3.6/site-packages/flask/cli.py
/usr/lib/python3.6/site-packages/flask/config.py
/usr/lib/python3.6/site-packages/flask/ctx.py
/usr/lib/python3.6/site-packages/flask/debughelpers.py
/usr/lib/python3.6/site-packages/flask/ext
/usr/lib/python3.6/site-packages/flask/ext/__init__.py
/usr/lib/python3.6/site-packages/flask/ext/__pycache__
/usr/lib/python3.6/site-packages/flask/ext/__pycache__/__init__.cpython-36.opt-1.pyc
/usr/lib/python3.6/site-packages/flask/ext/__pycache__/__init__.cpython-36.pyc
/usr/lib/python3.6/site-packages/flask/exthook.py
/usr/lib/python3.6/site-packages/flask/globals.py
/usr/lib/python3.6/site-packages/flask/helpers.py
/usr/lib/python3.6/site-packages/flask/json.py
/usr/lib/python3.6/site-packages/flask/logging.py
/usr/lib/python3.6/site-packages/flask/sessions.py
/usr/lib/python3.6/site-packages/flask/signals.py
/usr/lib/python3.6/site-packages/flask/templating.py
/usr/lib/python3.6/site-packages/flask/testing.py
/usr/lib/python3.6/site-packages/flask/views.py
/usr/lib/python3.6/site-packages/flask/wrappers.py
/usr/share/doc/python3-flask
/usr/share/doc/python3-flask/CHANGES
/usr/share/doc/python3-flask/README
/usr/share/licenses/python3-flask
/usr/share/licenses/python3-flask/LICENSE

References

python3-flask website

Summary

In this tutorial we learn how to install python3-flask on CentOS 8 using yum and dnf.