make_var

• Retrieve all variables defined by make command by python
• Expand make type variables $(VAR) in string

Package allow you to access any symbol defined in make. It might be helpful to transfer your Makefile based project to different one.

Installation

pip install make_var

Tutorial

How to use package:

• just create simple Makefile containing variables H and W

H = hello
W = world

• next create python file read_makefile.py

#!/usr/bin/env python3
from make_var import *

M=make_vars(origin=['makefile']) # retrieve only data defined in makefiles
print(M['makefile']['H'], M['makefile']['W'])

execute it and you get hello world

• to get all variables that make uses just write

M=make_vars(origin=None)        # all variables
print(M.keys())                 # print all origins

output is ['environment', "'override'", 'automatic', 'makefile', 'default']

String expansion

Example to replace $(var) by definition from Makefile

• use same Makefile as before
• edit python file

print(make_expand(M,"$(H) $(W)")) # replaces $(H) with "hello" and $(W) with "word"

you get hello world

Internals

package is based on GNU make command make -pnB