Detect push in default branch in Github

github_push_detection.py

from flask import Flask, request
import smtplib
from email.mime.text import MIMEText
import json
import ConfigParser
import os.path

app = Flask(__name__)
app.debug=True
config = ConfigParser.ConfigParser()
config.read(os.path.expanduser('~/.github-consumer'))
owners = json.loads(config.get("config", "owners", raw=True))

def send_mail(user,message):
    s = smtplib.SMTP('localhost')
    message=MIMEText(message,"html")
    message['Subject']='Push to master detected'
    s.sendmail('github.alert@adi.im',user+"@example.com",message.as_string())
    s.quit()

@app.route('/', methods=['POST'])
def api_consumer():
    if request.method == 'POST':
#      try:
      data = json.loads(request.get_data())
      try:  
    	branch = data['ref'].split('/')[2]
    	default_branch = data['repository']['default_branch']
    	head_committer = data['head_commit']['committer']['name']
        commit_msg = data['head_commit']['message']
        repo = data['repository']['name']
        print '**** New Commit ****'
        print head_committer
        print branch
        print repo
        print owners[repo]

    	if commit_msg[:18] != 'Merge pull request' and  branch ==  default_branch :
    		message = "%s committed on %s. URL: %s" %(head_committer, default_branch, data['head_commit']['url'])
                print message
       
        	send_mail(owners[repo], message)
      except Exception as e:
        print e
        print data
    return "The Github dude!"

if __name__ == "__main__":
    app.run(host='0.0.0.0',port=8081)