[Answer]-How to upload the django-1.5 application in google app engine?

Do you change your Mysql backend?

Support for using Google Cloud SQL with Django is provided by a custom Django database backend which wraps Django’s MySQL backend.

edit your settings.py:

DATABASES = {
    'default': {
        'ENGINE': 'google.appengine.ext.django.backends.rdbms',
        'INSTANCE': 'my_project:instance1',
        'NAME': 'my_database',
    }
}