How to set output of python script as variable in a different python script?

Question

I am using a Temper1F sensor, the code base I am using is at https://github.com/urwen/temper. The temper.py code returns an out put as seen below.

$ python3 temper.py
Bus 001 Dev 006 413d:2107 TEMPerX_V3.3 22.6C 72.7F - - - -

I would like to take that output and put it as a string variable in a different python script. I have tried using os. How can I invoke the other python script and store the output to variable?

I have tried the following methods:

from subprocess import call
var = str(call(["python", "temper.py"]))
var2 = call(["python", "temper.py"])

import os 
os.system('python temper.py')

import temper
var = temper

The call method returns a 0.

stackoverflow.com/questions/4760215/… might be useful here. (Alternatively, I think you could use stackoverflow.com/questions/1218933/… to redirect stdout to a string, import the other Python file, then reset stdout afterwards.) — StardustGogeta
– StardustGogeta, Commented Aug 2, 2019 at 16:07
Possible duplicate of Running shell command and capturing the output — wjandrea
– wjandrea, Commented Aug 2, 2019 at 16:13

bastien girschig · Accepted Answer · 2019-08-02 17:06:09Z

1

Do you have no way of accessing the methods from the sensor script? That would simplify things a lot...

If not, You can use sys.stdin in your script:

import fileinput
import sys

while True:
  line = sys.stdin.readline().strip()
  if line: print "[received]: ", line

and pipe the output of the sensor script into yours:

python sensorscript.py | python yourscript.py

[edit] I've checked out the temper script, and it looks like it's pretty easy to use it as a module directly:

from temper import Temper
temper = Temper()
value = temper.read() # call this every time you want to read the sensor

edited Aug 2, 2019 at 17:06

answered Aug 2, 2019 at 16:57

bastien girschig

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