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import os
from django.core.management.base import NoArgsCommand
from optparse import make_option
class Command(NoArgsCommand):
option_list = NoArgsCommand.option_list + (
make_option('--plain', action='store_true', dest='plain',
help='Tells Django to use plain Python, not IPython.'),
)
help = "Runs a Python interactive interpreter. Tries to use IPython, if it's available."
requires_model_validation = False
def handle_noargs(self, **options):
# XXX: (Temporary) workaround for ticket #1796: force early loading of all
# models from installed apps.
from django.db.models.loading import get_models
loaded_models = get_models()
use_plain = options.get('plain', False)
try:
if use_plain:
# Don't bother loading IPython, because the user wants plain Python.
raise ImportError
try:
from IPython.frontend.terminal.embed import TerminalInteractiveShell
shell = TerminalInteractiveShell()
shell.mainloop()
except ImportError:
# IPython < 0.11
# Explicitly pass an empty list as arguments, because otherwise
# IPython would use sys.argv from this script.
try:
from IPython.Shell import IPShell
shell = IPShell(argv=[])
shell.mainloop()
except ImportError:
# IPython not found at all, raise ImportError
raise
except ImportError:
import code
# Set up a dictionary to serve as the environment for the shell, so
# that tab completion works on objects that are imported at runtime.
# See ticket 5082.
imported_objects = {}
try: # Try activating rlcompleter, because it's handy.
import readline
except ImportError:
pass
else:
# We don't have to wrap the following import in a 'try', because
# we already know 'readline' was imported successfully.
import rlcompleter
readline.set_completer(rlcompleter.Completer(imported_objects).complete)
readline.parse_and_bind("tab:complete")
# We want to honor both $PYTHONSTARTUP and .pythonrc.py, so follow system
# conventions and get $PYTHONSTARTUP first then import user.
if not use_plain:
pythonrc = os.environ.get("PYTHONSTARTUP")
if pythonrc and os.path.isfile(pythonrc):
try:
execfile(pythonrc)
except NameError:
pass
# This will import .pythonrc.py as a side-effect
import user
code.interact(local=imported_objects)
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