Assign Linux environment variable in python

Question

I need to read an environment variable in Linux, and store it in a variable in Python. I’ve tried it in many ways and failed.

I started with this command, on linux $variavel='123123'

x = os.system('echo $variavel')

print('{}'.format(x))  #~~> que resulta em 0

but with research I found that he will basically say that the command worked or not.

What is the command so that I can store the variable value and use it in the code later? I’ve read the library documentation os, but still I’m having difficulties, someone could give me a strength?

Answer 1

The module os has a dictionary with environment variables that can be accessed by os.environ. If your environment has the variable PATH and you want to access it via Python just do:

import os
PATH = os.environ['PATH']