Recommended way to install pip(3) on centos7

Question

I am interrested in knowing the recommended way to install pip3 for python3.6 (as of today, may 2018) on current version of centos7 (7.5.1804) and the accepted answer of How

Answer 1

In case you're seeing that pip3 is linked to python2 path:

$ pip3 -V

pip 8.1.2 from /usr/lib/python2.7/site-packages/pip (python 2.7)

You'll probably get:

$ pip3 install --upgrade pip

TypeError: parse() got an unexpected keyword argument 'transport_encoding'

Then try to clear commands cache with hash -r. This has worked for me:

# Install Python 3:
sudo yum install python36 -y

# Install & Upgrade pip3
sudo python36 -m pip install --upgrade pip

# Validate pip3 installation:
sudo python3.6 -m ensurepip
#  Successfully installed pip-10.0.1 setuptools-39.0.1

# Clear commands cache
hash -r
# might be required if getting in bash: /usr/bin/pip3: No such file or directory)

pip3 -V
# pip 19.0.3 from /usr/local/lib/python3.6/site-packages/pip (python 3.6)

which pip3
# /usr/local/bin/pip3

pip2 -V
# pip 8.1.2 from /usr/lib/python2.7/site-packages (python 2.7)

which pip2
# /usr/local/bin/pip2

# Install your Python3 module:
sudo /usr/local/bin/pip3 install {required module for python3}