Get SQL query count during a Django shell session

Is there a way to print the number of raw SQL queries performed by the Django ORM during a Django shell session?

This sort of information is already provided by the Django debug toolbar (e.g, 5 QUERIES in 5.83MS but it's not obvious how to get it from the shell.

Solution 1:

You can use connection.queries:

>>> from django.conf import settings
>>> settings.DEBUG = True
>>> from django.db import connection
>>> Model.objects.count()
>>> print(len(connection.queries))
1

Solution 2:

This is a slight improvement on the accepted answer. create a python file named extra_imports.py in some app (Eg some_app)

extra_imports.py

from django.conf import settings
settings.DEBUG = True
from django.db import connection, reset_queries


def num_queries(reset=True):
    print(len(connection.queries))
    if reset:
        reset_queries()

Now, If you are using shell_plus from django_extension (btw check it out if you are not using it), add following line to settings.py

SHELL_PLUS_PRE_IMPORTS = [('some_app.extra_imports', '*')]

If you are using django shell, run this inside shell

exec(open('some_app/extra_imports.py').read()) # python3
execfile('some_app/extra_imports.py').read()) # pyhton2

Or you can just paste the contents of extra_import.py into the shell

Now,

In [1]: User.objects.all()
In [2]: num_queries()
1

In [3]: User.objects.filter(company=Company.objects.first()).all()
In [4]: num_queries()
2