Monday, August 29, 2022

[SOLVED] Use python to execute shell command and redirect the output to a variable

Issue

I am trying to do 2 things with Python-

  1. Execute a command at the terminal
  2. Save the output of the above command to a variable.

This is my code till now -

import subprocess
ip_address = "http://ipwho.is/104.123.204.11"
query_reply = subprocess.run(["curl" , ip_address])
print("The exit code was: %d" % query_reply.returncode)

The query_reply only saves the return code as I am using query_reply.returncode. Whereas I want to save the general output of the command curl http://ipwho.is/104.123.204.11 to a variable.

This output is a dict-like structure -

{"ip":"104.123.204.11","success":true,"type":"IPv4","continent":"North America","continent_code":"NA","country":"United States","country_code":"US","region":"California","region_code":"CA","city":"San Jose","latitude":37.3382082,"longitude":-121.8863286,"is_eu":false,"postal":"95113","calling_code":"1","capital":"Washington D.C.","borders":"CA,MX","flag":{"img":"https:\/\/cdn.ipwhois.io\/flags\/us.svg","emoji":"\ud83c\uddfa\ud83c\uddf8","emoji_unicode":"U+1F1FA U+1F1F8"},"connection":{"asn":16625,"org":"Akamai Technologies, Inc.","isp":"Akamai Technologies, Inc.","domain":"gwu.edu"},"timezone":{"id":"America\/Los_Angeles","abbr":"PDT","is_dst":true,"offset":-25200,"utc":"-07:00","current_time":"2022-07-25T11:26:47-07:00"}}

The final goal is to access the fields like the region, city etc. inside the above structure. What is the general process to approach this sort of problem?


Solution

there is an arg to get output

import subprocess
import json

r = subprocess.run(["curl" , "http://ipwho.is/104.123.204.11"], capture_output=True)
djson = json.loads(r.stdout.decode())
djson["region"], djson["city"]

or better just querying it

import requests

with requests.get("http://ipwho.is/104.123.204.11") as response:
    djson = response.json()
djson["region"], djson["city"]


Answered By - Devyl
Answer Checked By - Candace Johnson (WPSolving Volunteer)
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