Installing python3 and pip3 on Centos7

Here I have no python3 installed

The most simplest way to install python3
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sudo yum install python3

Make python 3.6 as default one
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sudo alternatives --install /usr/bin/python python /usr/bin/python3.6 60
sudo alternatives --config python

Check the python version
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Check the pip version
==================

Check the pip3 version
==================

Upgrade pip3
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pip3 install --upgrade pip --user

 

Check the pip version

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Bonus: Fixing yum package manager

Now lets try to install a random package to check the yum package manager

Install nano
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sudo yum install nano
you will get following error

To fix this, Open the /usr/bin/yum file and in the first line, change python to python2
OLD:

NEW:

If again you got similar issue with different file, for example:

Open this file (sudo vi /usr/libexec/urlgrabber-ext-down ) and in the first line change "python" to "python2"

 

Here is the Youtube demo:

 

 

-That's all for now