Flask Error emails

app.py

import logging
from logging.handlers import SMTPHandler

from flask import Flask

app = Flask(__name__) # configure however you normally do
app.debug = False

if not app.debug:
    logging.basicConfig(level = logging.INFO)

    handler = SMTPHandler(
        mailhost = ("smtp.mailgun.org", 587), # your SMTP server goes here; I'm using Mailgun
        fromaddr = "Application Bug Reporter <{{ email_here }}>",
        toaddrs = ['{{ admin emails here }}'],
        subject = "Application Logging Email",
        credentials = ("{{ SMTP username }}", '{{ SMTP password }}')
        )
    handler.setLevel(logging.ERROR)
    app.logger.addHandler(handler)

@app.route("/")
def index():
    print name # this raises a NameError, which should be emailed to me
    return "Hello, world!"

app.run()