Executing a Django Shell Command from the Command Line

Question

I would like to execute a command via Django's manage.py shell function solely from the command line

e.g.

manage.py shell -c "from myapp import models; print models.MyModel.some_calculation()"

the came way you might use the -c option with the normal Python interpreter

e.g.

python -c "print 'hello world'"

However, I don't see an equivalent -c option for manage.py shell. Is there a way to do this?

• S.Lott: Please don't. Please write a two-line script file.
• virhilo: see custom admin commands

Answer 1

Pipe it ;)

echo "print('hello world')" | python manage.py shell

• Alexandre: or if you want to use a file: cat my_script.py | python manage.py shell
• christianbundy: I'm not sure why, but that isn't working for me. I'm forced to use echo "$(cat my_script.py)" | python manage.py shell instead.
• frnhr: Correction, indentation doesn't work with IPython, so to force the standard prompt: ... | python manage.py shell -i python
• Jan Kyu Peblik: Make sure you include a \n at the end (with echo -e if necessary).

Answer 2

Not like that. But it is easy enough to write a standalone script for Django.

• JSmyth: Links tend to expire... code example here is better.

Answer 3

For anyone new coming to this question: Since Django 1.10, the -c/--command is there, and it works exactly like you'd expect. From the official docs:

Lets you pass a command as a string to execute it as Django, like so:

django-admin shell --command="import django; print(django.__version__)"