Gmail notifier

#!/usr/bin/env python
import feedparser, pynotify

checkerFile = '.checker'

def checkLast(current): # Checks if the email count is the same as last time (no NEW email)
    f = open(checkerFile, 'r')
    last = f.read();
    f.close()
    if last == current:
        return True
    else:
        f = open(checkerFile, 'w')
        f.write(current)
        f.close()
        return False

try:
    g = feedparser.parse('https://[email protected]:[email protected]/mail/feed/atom') # Checking Gmail
    count = g.feed.fullcount # Putting the count into a variable
except Exception: # If there is an Exception the program exits
    exit()

if count == '0': # No need to notify me if there is no email
    checkLast(count) # but still want to update the checker file
else:
    if checkLast(count): # If the email count is the same as was saved in the text file last, there's no new email
        pass
    else:
        pynotify.init("summary-body") # Setting up the notification
        if count == "1":
            n = pynotify.Notification("GMail", "{0} new email".format(count))
        else:
            n = pynotify.Notification("GMail", "{0} new emails".format(count))
        n.show() # Displaying the notification