Update connect.py

openssl pkcs12 -in your-project-XXXXXXX.p12 -nodes -nocerts > your-project-XXXXXXX.pem (password:notasecret)
GCALSYNC_CREDENTIALS = "DIR/calendar.dat"
GCALSYNC_CREDENTIALS_KEY =  "DIR/your-project-XXXXXXX.pem"
GCALSYNC_CREDENTIALS_EMAIL = "XXXXXXX-XXXXX@developer.gserviceaccount.com"