Shell Scripting Python Shell imports

Question

I'd like to save myself some typing when I'm testing things in python manage.py shell. Basically I have a little shell script that gets me into the >>> shell, but I'd like to be able to automatically push in the import calls in my views.py script so I don't have to type them every time I want to test something. I tried writing them out in the shell script but it seems that they weren't passed to python shell.

Here's what I have so far.

#!/usr/local/bin/bash
python ~/path/to/manage.py shell

import datetime
from django.shortcuts import render_to_response
from mymodel.models import *
from myapp.forms import *
... and so on

What I'd like to happen is for all the import lines to be pushed into python shell so I don't have to type/copy-paste them everytime I want to debug at the shell.

3 mins, 3 answers. Nice response rate for a Friday night.

Brandon Bertelsen
– Brandon Bertelsen

2013-02-23 02:55:16 +00:00
Commented Feb 23, 2013 at 2:55 — Brandon Bertelsen
– Brandon Bertelsen, Commented Feb 23, 2013 at 2:55
Only the true geeks are out this late on a Friday :)

Brandon Taylor
– Brandon Taylor

2013-02-23 02:57:14 +00:00
Commented Feb 23, 2013 at 2:57 — Brandon Taylor
– Brandon Taylor, Commented Feb 23, 2013 at 2:57

icktoofay · Accepted Answer · 2013-02-23 02:53:17Z

2

Put your prequel into a file. Here, I'll assume it's in a file appropriately named prequel. Then you can adjust your bash script like so:

cat prequel - | python ~/path/to/manage.py shell

cat concatenates files, but it can treat standard input as a file, so we're concatenating your prequel and then standard input and then piping that concatenation to the shell.

answered Feb 23, 2013 at 2:53

icktoofay

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3 Comments

Brandon Taylor Over a year ago

Nice. I didn't know you could use cat to do that.

Brandon Bertelsen Over a year ago

I think this works. I say I think because the >>> doesn't show up, yet it seems when I type something, I am in fact in the shell.

icktoofay Over a year ago

@BrandonBertelsen: I'm guessing it won't print >>> unless it detects its standard input is a tty. If it's a pipe from cat (even if cat is getting its input from a tty), it's still a pipe and not a tty, so it won't print the >>>. I guess this is why that Django extension thing would be better. (It can execute stuff on its own without messing with standard input.)

Brandon Taylor · Accepted Answer · 2013-02-23 02:54:25Z

1

There is also django-extensions: http://www.michelepasin.org/blog/2010/11/17/preloading-stuff-in-djangos-interactive-shell/

answered Feb 23, 2013 at 2:54

Brandon Taylor

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2 Comments

Brandon Bertelsen Over a year ago

So, if I understand this correctly - you would just call python manage.py shell-plus.py?

Brandon Taylor Over a year ago

That is just one of the command extensions. That particular command will autoload models. Check out: pythonhosted.org/django-extensions/command_extensions.html

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