Python-Django debugging with Foreman/gunicorn/celery.

DjangoDebugging.py

# 1. Use Celery:
# http://celery.readthedocs.org/en/latest/tutorials/debugging.html

from celery import task
from celery.contrib import rdb

@task()
def add(x, y):
    result = x + y
    rdb.set_trace()  # <- set breakpoint
    return result

# Then telnet in:
telnet 127.0.0.1 6900
# then you're into PDB.


# 2. Use sys.stdout.flush() to get gunicorn to print
import sys
print "After every print line, you need to put sys.stdout.flush()"
sys.stdout.flush()
# "After every print line, you need to put sys.stdout.flush()"

# 3. amp up the log levels on foreman:
web: gunicorn Strings.wsgi --log-level debug
celery: celery worker -A Strings -l debug -c 2