django-1.9

I use Postgis with Django to store geographic points. I have a model like the following: from django.contrib.gis.db import models class Event(models.Model) position = models.PointField() I have two events(ev1, ev2). Here is the position value of each: SRID=4326;POINT (-73.6335140000000052 45.5472019999999986) SRID=4326;POINT (-73.6267909999999972 45.5459189999999978) My goal is to get distance in meters between those two points. If i do: ev1.position.distance(ev2.position) I get 0.006844327432269004 How can I convert this value in meters? Thanks! Michael I was able to make it work, but only

In Django 1.8, I was able to do the following with my signals, and all was well: __init__.py: from .signals import * signals.py: @receiver(pre_save, sender=Comment) def process_hashtags(sender, instance, **kwargs): html = [] for word in instance.hashtag_field.value_to_string(instance).split(): if word.startswith('#'): word = render_to_string('hashtags/_link.html', {'hashtag': word.lower()[1:]}) html.append(word) instance.hashtag_enabled_text = ' '.join(html) In Django 1.9, I get this error: django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet. I know it's coming from the __init__

I have a project currently working on Django 1.8. Since 1.9 just released, I thought I would update via pip install django==1.9 . However, when running python manage.py test -v 3 , I get this error: Traceback (most recent call last): File "manage.py", line 11, in <module> execute_from_command_line(sys.argv) File "/home/user/Envs/intranet/lib/python2.7/site-packages/django/core/management/__init__.py", line 350, in execute_from_command_line utility.execute() File "/home/user/Envs/intranet/lib/python2.7/site-packages/django/core/management/__init__.py", line 324, in execute django.setup() File "

I am bit curious to know why Django 1.9 replaced tuples () with lists [] in settings, URLs and other configuration files I just upgraded to Django 1.9 and noticed these changes. What is the logic behind them? INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles' ] AUTH_PASSWORD_VALIDATORS = [ { 'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator', }, { 'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator', }, { 'NAME':

Having the following models: class Post(models.Model): title = models.CharField(max_length=250) tags = TaggableManager() and the data are： **post.title** **post.tags** Django By Example python,django,web Who was Django Reinhardt python,django, Test-Driven Development with Python python,web Python for Data Analysis python,data Learning Python python Programming Python python Automate the Boring Stuff with Python python I try to code below >>> alist=Post.objects.filter(tags__name__in=["data","python"]) >>> for i in alist.annotate(sam_tags=Count('tags')): ... print("\n---",i) ... print("tags of

I have worked with django 1.7 and recently started new project with django 1.9. The major difference with starting a new app was that new app is created with apps.py file. I read on django docs that now you have to use INSTALLED_APPS = [ 'newapp.apps.NewAppConfig', ... ] (old was just 'newapp' ) In my new project i have all my apps in a new directory called 'myapps'. But if i use 'myapps.newapp.apps.NewAppConfig' than django gives error ImportError: No module named newapp But if i use the old way i.e. INSTALLED_APPS = [ 'myapps.newapp', ... ] Than it works perfectly without error but configs