Trying to use python-nmap but receiving however python2 or 3 can't find PortScanner.

[buran]

from .nmap import nmap

that doesn't look right
if you look at the source code, it's

from .nmap import *

and it's even more strange because you should get

Error:
ImportError: cannot import name 'nmap' from 'nmap.nmap'

python-nmap works with python3 - I installed it on my system (linux mint) in virtual environment and I got the same error you got in python2

Error:
nmap.nmap.PortScannerError: 'nmap program was not found in path

I don't have nmap installed on my systems, so it's not available

Tried to install python3-nmap, since python3 is the future:

python3-nmap is different package, I didn't look into it

install separately - that it nmap tool should be available on your system, python-nmap will not install it, you should install it yourself if not available

python-nmap will install correctly depending on the python version in which it is installed. As I said I installed it on my python3.7 without any issues