Django 2.2 uncaught exceptions not being sent

Describe the bug: … I am not sure if it is a bug, because reading the documentation I was not able to find any explicit information talking about uncaught exceptions with Django (only with Flask), but all non handled exceptions are not being sent to APM server. However, running the test command (python manage.py elasticapm test) the event is sent successfully

Environment (please complete the following information)

• OS: Linux (Docker image python:3.7.4)
• Python version: 3.7.4
• Framework and version [e.g. Django 2.1]: Django 2.2
• APM Server version: v7.5.0
• Agent version: 5.3.2

How to reproduce In order to tests the uncaught exceptions I did the following tests:

• Manually inserted an raise ZeroDivisionError('APM TEST') in one of my functions outside any try/catch/
• Executed raise ZeroDivisionError('APM TEST') using python shell (python manage.py shell)

Additional context

settings.py

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.contenttypes',
    'django.contrib.staticfiles',
    'elasticapm.contrib.django',
    ...
]


MIDDLEWARE = [
    'elasticapm.contrib.django.middleware.TracingMiddleware',
    'elasticapm.contrib.django.middleware.Catch404Middleware',
    ...
]


ELASTIC_APM = {
    'SERVICE_NAME': 'MYSERVICE',
    'SECRET_TOKEN': 'SECRETTOKEN,
    'SERVER_URL': 'SERVERURL',  # noqa
    'DEBUG': True
}

Running check command

root@26cb7a8c0615:/usr/src/app# python manage.py elasticapm check
Service name is set, good job!

SERVER_URL https://APM_ADDR:443 looks fine

DEBUG mode is disabled! Looking good!

Tracing middleware is configured! Awesome!

Looks like everything should be ready!

[romulorosa]

Hi @basepi, Here is the PR https://github.com/elastic/apm-agent-python/pull/943

I will add some tests, but before I would like to make sure that the behavior implemented fits your requirements.

[basepi]

Hey @romulorosa I still think this would be a cool addition. Would you mind opening a PR? Will be easier not to lose track of that way (rather than just a link to a diff).