Error: Python-pip has no installation candidate

[vsingh00]

When i try to run ./install cmd for installing MHN.. i got this error
Package python-pip is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
python3-pip

E: Package 'python-pip' has no installation candidate

[jeffrey4512]

run it on Ubuntu 16.04 or 18.04 releases since python-pip is no longer available in newer version.

[wrharding]

I can reproduce this on Ubuntu 20.04 and above.

...
...
Package python-pip is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
  python3-pip

E: Package 'python-pip' has no installation candidate
root@mhn-deployment-2004:/opt/mhn#

For what it's worth, I switched to python3-pip in my fork of MHN and haven't noticed any issues... yet. The install scripts can be altered to forcefully install Python 2/pip for Python 2 on newer versions of Ubuntu. That will have to come as time allows. PR's are welcome and encouraged.