Django management command: Take a fully qualified URL and show the resolved view (accounting for decorators on the view).

u2v.py

from textwrap import dedent
from urlparse import urlparse

from django.core.management.base import BaseCommand
from django.core.urlresolvers import resolve, Resolver404


class Command(BaseCommand):
    """
    Take a fully qualified URL and show the resolved view
    """
    args = "<url url ...>"
    help = "Take a fully qualified URL and show the resolved view"

    def handle(self, *args, **kwargs):
        for arg in args:
            self.stdout.write(dedent("""
                path:\t%(url_path)s
                view:\t%(view)s
                file:\t%(file)s
                name:\t%(url_name)s
                kwargs:\t%(kwargs)s
                args:\t%(args)s
                """ % url2view(arg)))


def url2view(url):
    url_path = urlparse(url).path
    result = {'url_path': url_path}
    try:
        resolve_match = resolve(url_path)
    except Resolver404:
        result.update({'view': None, 'file': None, 'url_name': None, 'args': (), 'kwargs': {}})
    else:
        func = resolve_match.func
        while True:
            try:
                closure = func.func_closure
            except AttributeError:
                break
            if closure is None:
                break
            else:
                func = closure[-1].cell_contents
        result.update({
            'view': '.'.join([func.__module__, func.__name__]),
            'file': ' '.join([func.__code__.co_filename, 'line', str(func.__code__.co_firstlineno)]),
            'url_name': resolve_match.url_name,
            'args': resolve_match.args, 'kwargs': resolve_match.kwargs})
    return result