How do you reload a Django model module using the interactive interpreter via “manage.py shell”?

Question

I know how to reload a regular Python module within a regular Python interpreter session. This question documents how to do that pretty well:

How do I unload (reload

Answer 1

My solution on 2016 (in future it may be changed)

1.Install django_extension

2.Add next settings:

SHELL_PLUS = 'ipython'

IPYTHON_ARGUMENTS = [
    '--ext', 'autoreload',
]

3.Run shell

./manage.py shell_plus

See results:

model example

class Notification(models.Model):

    ........

    @classmethod
    def get_something(self):

        return 'I am programmer'

In shell

In [1]: Notification.get_something()
Out[1]: 'I am programmer'

Made changes on model

@classmethod
    def get_something(self):

        return 'I am Python programmer'

In shell

# shell does not display changes
In [2]: Notification.get_something()
Out[2]: 'I am programmer'

In shell. This is a magic

# configure extension of ipython
In [3]: %autoreload 2

In shell

# try again - all worked
In [4]: Notification.get_something()
Out[4]: 'I am Python programmer'

Made changes again

    @classmethod
    def get_something(self):

        return 'I am full-stack Python programmer'

In shell

# all worked again
In [5]: Notification.get_something()
Out[5]: 'I am full-stack Python programmer'

Drawback: 1. Need manually run code

%autoreload 2

since django_extension 1.7 has not support for run arbitrary code. May be in future release it has this feature.

Notes:

1. Django 1.10
2. Python 3.4
3. django_extension 1.7.4
4. Based (primary) on https://django-extensions.readthedocs.io/en/latest/shell_plus.html and http://ipython.readthedocs.io/en/stable/config/extensions/autoreload.html
5. Caution. It is may be produce an error, if you try change a code where used super().