Update atom from command line - Python script

#!/usr/bin/env python
## Python script for checking and installing latest version of atom editor in Linux
## Russell B

import subprocess, os, platform, sys
import requests as rq
from bs4 import BeautifulSoup as bs

path =

if platform.system() == 'Linux':
    system = 'Linux'
else:
    print('Currently, none other than Linux is supported')
    sys.exit()

def get_sys_arch_name():
    arch = platform.architecture()
    os_name = platform.version()
    osn = ''
    exen = ''

    if subprocess.call('dpkg --help', shell=True) == 0:
        osn = 'Debian family'
        exen = 'atom-amd64.deb'
    elif subprocess.call('rpm --help', shell=True) == 0:
        osn = 'Redhat family'
        exen = 'atom.x86_64.rpm'
    elif subprocess.call('dnf --help', shell=True) == 0:
        osn = 'Fedora family'
        exen = 'atom.x86_64.rpm'
    else:
        pass
    return (arch, osn, exen)

def get_ins_version(system_details):
    atom_v_ = subprocess.Popen('atom --version', shell=True, stdout=subprocess.PIPE)
    atom_v = (atom_v_.stdout.readline()).strip()

    return str(atom_v[10:int(len(atom_v))])

def get_cur_version():
    latest_url = 'https://github.com/atom/atom/releases/latest'
    resp = rq.get(latest_url)
    soup = bs(resp.text, 'html5lib')
    release_v = soup.head.title

    return release_v.string[8:14]

sys_info = get_sys_arch_name()
ins_ver = get_ins_version(sys_info)
cur_ver = get_cur_version()

if sys_info[1] == 'Debian family':
    atom_url = 'https://github.com/atom/atom/releases/download/v'+str(cur_ver)+'/'+str(sys_info[2])
elif sys_info[1] == 'Fedora family' or osn[1] == 'Redhat family':
    atom_url = 'https://github.com/atom/atom/releases/download/v'+str(cur_ver)+'/'+str(sys_info[2])
else:
    pass

if ins_ver == cur_ver:
    print('Current installed version is the latest version and the version is ', get_latest_version())
else:
    print('Current installed version is '+str(ins_ver)+'\n'+'The latest version is '+str(cur_ver))
    print('\nUpdate will be downloaded now...')

    if os.path.exists(os.path.join(path, str(cur_ver))):
        print('Directory exists for donwloading...\nChanging to the download directory...')
        os.chdir(os.path.join(path, str(cur_ver)))
    else:
        print('Directory does not exist and will be created.')
        ret_val = subprocess.Popen(['mkdir', '-p', your location+str(cur_ver)])
        ret_val.wait()
        print('Changing to the downloaded direcotry...')
        os.chdir(os.path.join(path, str(cur_ver)))
    print('Downloading begins...')
    download = subprocess.Popen(['wget', '-c', '-P', your location+str(cur_ver), '--progress=dot', str(atom_url)])
    download.wait()
    print('Download successfull!')

    if sys_info[1] == 'Debian family':
        print('Installation begins:\n')
        ret_val = subprocess.Popen(['xterm', '-e', 'sudo', 'dpkg', '-i', str(sys_info[2])], shell=True, stdout=subprocess.PIPE)
        ins_stat = ret_val.wait()
        if ins_stat == 0:
            print('Atom editor - '+str(cur_ver)+' has been installed successfully')
        else:
            print('Installation unsuccessful: Please inspect the error message')
    elif sys_info[1] == 'Fedora family':
        print('Installation begins:\n')
        ret_val = subprocess.Popen(['xterm', '-e','sudo', 'dnf', 'install', str(sys_info[2])], shell=True, stdout=subprocess.PIPE)
        ins_stat = ret_val.wait()
        if ins_stat == 0:
            print('Atom editor - '+str(cur_ver)+' has been installed successfully')
        else:
            print('Installation unsuccessful: Please inspect the error message')
    elif sys_info[1] == 'Redhat family':
        print('Installation begins:\n')
        # ret_val = os.system('xterm -c \ sudo rpm -Uivh '+str(sys_info[2]))
        ret_val = subprocess.Popen(['xterm', '-e', 'sudo', 'rpm', '-Uivh', str(sys_info[2])], shell=True, stdout=subprocess.PIPE)
        ins_stat = ret_val.wait()
        if ins_stat == 0:
            print('Atom editor - '+str(cur_ver)+' has been installed successfully')
        else:
            print('Installation unsuccessful: Please inspect the error message')