Python script to change all the local remotes on my system to use my new GitHub username

update-remotes.py

#! /usr/bin/env python3

__doc__ = '''
Update all local repositories with new urls after
changing your GitHub username.
'''

import os, sys, subprocess, re

SEARCH_PATH = "/path/to/search"
OLD_GITHUB_USERNAME = "old-username"
NEW_GITHUB_USERNAME = "new-username"
GITHUB_URL_RE = re.compile(r'(.*?github\.com(?::|/))({})/(.*?\.git)'.format(OLD_GITHUB_USERNAME))

def main():
    # Check Python version
    try:
        version_info = sys.version_info
        if version_info.major < 3 | (version_info.major == 3 & version_info.minor < 5):
            print("This script uses some features introduces in Python 3.5... Exiting...")
            return
    except AttributeError:
        print("Good Ghandi, you're using an outdated version of Python... You'll need something newer to make this work...")
        return
    # Search for all .git repositories
    args = [
        "find",
        SEARCH_PATH,
        "-name",
        ".git",
        "-type",
        "d"
    ]
    try:
        repository_paths = run(args)
    except subprocess.CalledProcessError as e:
        print("Error finding repositories: {}".format(e))
        return
    # Handle each repository
    for path in repository_paths:
        # Navigate to the repository's parent directory
        repo_parent = os.path.split(path)[0]
        os.chdir(repo_parent)
        # Get a list of remotes
        args = [
            "git",
            "remote"
        ]
        try:
            remotes = run(args)
        except subprocess.CalledProcessError as e:
            print("Error finding remotes: {}".format(e))
            continue
        # Check each remote
        for remote in remotes:
            # Check the remote url
            args = [
                "git",
                "remote",
                "get-url",
                remote
            ]
            try:
                remote_url = run(args)[0]
            except subprocess.CalledProcessError as e:
                print("Error getting remote url: {}".format(e))
                continue
            match = GITHUB_URL_RE.match(remote_url)
            if match:
                updated_remote_url = "{}{}/{}".format(match.group(1), NEW_GITHUB_USERNAME, match.group(3))
                # Set the updated remote url
                args = [
                    "git",
                    "remote",
                    "set-url",
                    remote,
                    updated_remote_url
                ]
                try:
                    run(args)
                except subprocess.CalledProcessError as e:
                    print("Error updating remote url: {}".format(e))
                    continue
                print("Successfully updated remote url: {}".format(updated_remote_url))

                
def run(*args, **kwargs):
    '''Shortcut to call `subprocess.run` and return the output of the command'''
    # output to stdout unless overridden in kwargs
    kwargs.setdefault('stdout', subprocess.PIPE)
    # run the command
    proc = subprocess.run(*args, **kwargs)
    # check return code – raises `subprocess.CalledProcessError` if non-zero status
    proc.check_returncode()
    # parse the output
    return proc.stdout.decode().strip().split('\n')


if __name__ == '__main__':
    main()