wondering what this makefile means

So I was browsing repl.it and saw that someone made it possible to run firefox in the repl window. There was a file called Makefile and it had this code in it. I’m wondering what it means and where …

How do I run a Python 3 script on a user’s system when they may also have Python 2.7 installed?

I’m trying to run python 3 scripts as part of a Makefile target that can be used on Linux or Windows (msys). What is the correct way it invoke Python 3 when the system may also have Python 2.7 …

Run Makefile on pip install

I have some protocol buffer definitions which need to be built to Python source as part of the pip install process. I’ve subclassed the setuptools.command.install command in setup.py but I think it’s …