To code or to pdb in Python

This feels like a bit of a face-plant moment but I've never understood why anyone would use the code module when you can use the pdb when the pdb is like the code module but with less.

What you use it for is to create you own custom shell. Django does this nicely with it's shell management command. I often find myself doing this:

$ python
Python 2.6.5 (r265:79063, Apr 16 2010, 13:09:56) 
[GCC 4.4.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from this import that
>>> from module import something
>>> from db import connection
>>> con = connection('0.0.0.0', bla=True)
>>> con.insert(something(that))

And there's certain things I almost always import (depending on the project). So use code to write your own little custom shell loader that imports all the stuff you need. Here's one I wrote real quick. Ultra useful time-saver:

#!/usr/bin/env python
import code, re
if __name__ == '__main__':
   from apps.main.models import *
   from mongokit import Connection
   from pymongo.objectid import InvalidId, ObjectId
   con = Connection()
   db = con.worklog
   print "AVAILABLE:"
   print '\n'.join(['\t%s'%x for x in locals().keys()
                    if re.findall('[A-Z]\w+|db|con', x)])
   print "Database available as 'db'"
   code.interact(local=locals())

This is working really well for me and saving me lots of time. Hopefully someone else finds it useful.