test.py

import requests
import os

r = requests.get("https://api.github.com/orgs/CSIT-GUIDE/repos")
print ("Number of repositories in the organization: ", len(r.json()))
repo_list= []
for index in range(len(r.json())):
    repo = r.json()[index]
    repo_list.append(repo.get("clone_url"))

repo_dict = dict(enumerate(repo_list))
print("------",repo_dict)

for k, v in repo_dict.items():
    print("Choice: ", k , " URL: ", v)
choice = int(input("Which repository you want to clone? "))
print(choice)
if(choice):
    choice_url = repo_dict.get(choice)

print(choice_url)
#command = "git clone "+choice_url
#os.system(command)