How to upgrade pip version from 8.1.1 to latest version 20.0.2

sudo pip3 install pyOpenSSL ndg-httpsclient pyasnl
when I’m executing this code, error prompts on my screen “could not find the version that satisfies the requirement pyasnl(from versions:) you should consider upgrading via the “pip install --upgrade pip””

sudo apt-get update
sudo apt-get upgrade
and then check pip version
if not latest pip , upgrade pip

Hi @hussainbadri5253,

Why do you need pyOpenSSL ndg-httpsclient pyasnl library?

To upgrade pip, type the below command-

sudo -H pip3 install --upgrade pip

Do let me know in case you need any other information.