nlpp v4.0.0.0 python version check fails

[wmkouw]

Goal: construct NewsReader pipeline through nlpp

Input: bash ubuntu_install calls Makefile in nuweb, which calls generated script env/bin/make_infrastructure. This file checks for correct versions of languages, including python3.6.

Problem: It claims I don't have python3.6 installed on my system.

make_infrastructure Wed Mar 14 16:08:25 UTC 2018: Python
 
Please install Python version 3.6
Makefile:115: recipe for target 'install' failed
make: *** [install] Error 4

But I do have python3.6 installed; python3 --version returns:

Python 3.6.4

If I insert echo ($python3 --version) and call make_infrastructure directly, it tells me that python3 does not exist:

make_infrastructure Wed Mar 14 16:17:01 UTC 2018: Python
 
./env/bin/make_infrastructure: line 185: python3: command not found