package_updater.py

import requests
import pkg_resources
from bs4 import BeautifulSoup
from pkg_resources import parse_version
from subprocess import call

base_url = "https://pypi.org/project/"

for pkg in pkg_resources.working_set:
    original_version = pkg.version
    sys_package_name = pkg.project_name

    html = requests.get(base_url + pkg.project_name)
    soup = BeautifulSoup(html.text, 'html')

    pypi_package_name, pypi_version = soup.find('h1', class_='package-header__name').text.strip().split(' ')

    print("{}=={}   {}=={}".format(sys_package_name, original_version, pypi_package_name, pypi_version))
    if parse_version(original_version) < parse_version(pypi_version):
        print("update required")
        choice = input("Do you want to update (y/n)?")
        if choice in ['y', 'Y', 'yes', 'YES']:
            print("please update")
            call("pip install --upgrade " + ''.join(sys_package_name), shell=True)
        else:
            pass