For what reason is the ssl module (Secure Sockets Layer) in Python not accessible when introducing packages with pip3?

Initial step:-

You have to install the necessary packages for python and SSL

$ sudo apt-get install libreadline-gplv2-dev libncursesw5-dev libssl-dev libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev

Second step;-

Next, Download and Unzip the "Python-3.6.8.tar.xz" from the link

Make sure you unzip the downloaded file in your home directory

Third step:-

Open the terminal and run "$ ./configure", in that respective directory

Fourth step:-

Then, Build & install

$ make && sudo make install

Last step:-

Here, you can install your packages with:-

$ pip3 install package_name

Note:- These commands are not executed and tested in ubuntu 20.04 LTS