Python Git repo auto updater

auto-update.pyw

import os, sys
from easygui import *

title = "Git Auto Update"
msg = "Do you want to update your Git Repos?"

if not ynbox(title, msg):
    sys.exit()

print('Getting list of directories...')
projects = os.listdir()
print('Done!')
for project in projects:
    if 'nonGit' in project:
        continue
    print("Changing dir to {}".format(project))
    try:
        os.chdir(project)
    except:
        print("Is file not directory! Skipping.")
        continue
    print("Checking for changes...")
    os.system('git pull origin master')
    print('Changing back to starting directory.')
    os.chdir('..')
    print('Done')
msgbox('All repos updated!', 'Git Auto Update')