postgresql/operations.py @ 235 leaking memory

[Francesco Meli]

Hello,

 

I have posted a well detailed issue here on StackOverflow (it can be 
improved if asked):
https://stackoverflow.com/questions/60972577/django-postgres-memory-leak

 

   - I have a custom command that crunches jobs coming from a Postgresql 
   table jobs.
   - Since the command is multi threaded the action of “picking up the job” 
   (select oldest job with status ‘pending’ && setting status to ‘in 
   progress’) was made atomic.
   - The jobs I’m executing for this test are empty methods so the leak 
   can’t be there.
   - Using tracemalloc pip package, I tracked down the python file and line 
   that is allocating memory without ever relasing it: 
   postgresql/operations.py:222 (Django 2.0.0)
   - I also installed Django 3 thinking that could have been an old bug but 
   even with this update the problem is still there: 
   postgresql/operations.py:235 (Django 3.0.5)
   - Please help.

 

Thanks 

 

FM

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Re: heroku goddaddy domain config

[Makori Breens.]

Try pointing through your heroku A records from godaddy.also make sure you
domain is added on heroku panel.it should work

On Wednesday, April 1, 2020, John McClain  wrote:

> Hello,
>
> I am trying to point my GoDaddy hosted domain to my heroku app but am not
> getting any love.
>
> Trying to get the https version configured
>
> Any suggestions?
>
> Thanks
>
> --
> John McClain
>
> Cell: 085-1977-823
> Skype: jmcclain0129
> Email: jmcclain0...@gmail.com
>
> --
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> msgid/django-users/CAN-hv_rgdai-%2Bp0RCsMvXMtrGC6DMkn%
> 3DphcuQWiUVoD3humTAw%40mail.gmail.com
> 
> .
>

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Populate script not working

[Jeff Waters]

I've created a population script to test my website - please see below - but I 
get the following error message: django.contrib.auth.models.DoesNotExist: User 
matching query does not exist.

Given that I've created a hypothetical user, I'm not sure why this is?

Any suggestions would much appreciated.

Thank you.

Jeff

EDIT : I have done both makemigrations and migrate.

import os
import django

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'mynowandthen.settings')
django.setup()

from django.contrib.auth.models import User
from nowandthen.models import Picture, Comment, UserProfile

def populate():
banana_user = [{'username': 'Banana','email': 'ban...@cat.com', 
'password': 'Banana1234'},]
johann_user = [{'username': 'Banana', 'email': 'ban...@cat.com', 
'password': 'Banana1234'},]
wmffre_user = [{'username': 'Wmffre', 'email': 'wmf...@cat.com', 
'password': 'Wmffre1234'},]


maryhill_comments = [{'user': banana_user,
'body': 'wowo I love this photo - reminds me of when I used to live 
there!'},
{'user': johann_user,'body': 'I love Maryhill - its such a pretty part 
of Glasgow lol'},
{'user': wmffre_user,'body': 'gonnae no dae that lol', 'user_id': 3}]

fireworks_comments = [{'user': banana_user,'body': 'amazing fireworks - 
thanks for sharing :)'},
{'user': johann_user,'body': 'love fireworks, love this, love YOU!'},
{'user': wmffre_user,'body': 'whoop!'}]

cityscape_comments = [{'user': banana_user,'body': 'more pics like this one 
please!!'},
{'user': johann_user,'body': 'what a sucky picture hahah'},
{'user': wmffre_user,'body': 'great - love it!'}]

pics = {'Maryhill': {'comments': maryhill_comments,
 'image': 
'shared_pics/View-from-kitchen-window-of-Maryhill-tenements.1970.jpg',
 'title': 'Maryhill Laundry',
 'description': 'back view',
 'tag_one': 'Maryhill',
 'tag_two': 'Laundry',
 'era': '1970s',
 'likes': 64},
'Fireworks': {'comments': fireworks_comments,
  'image': 'shared_pics/fireworks.jpg',
  'title': 'Glasgow Fireworks',
  'description': 'Fireworks at Glasgow Green',
  'tag_one': 'Glasgow',
  'tag_two': 'Fireworks',
  'era': '2010s',
  'likes': 32},
'Cityscape': {'comments': cityscape_comments,
  'image': 'shared_pics/glasgow_cityscape_copy.jpg',
  'title': 'Glasgow Cityscape',
  'descrpition': 'View over Glasgow',
  'tag_one': 'Cityscape',
  'tag_two': 'Glasgow',
  'era': '1990s',
  'likes': 16}}

for pic, pic_data in pics.items():
p = add_picture(pic,
pic_data['image'],
pic_data['title'],
pic_data['description'],
pic_data['tag_one'],
pic_data['tag_two'],
pic_data['era'])
for c in pic_data['comments']:
add_comment(c[0], c[1])

for p in Picture.objects.all():
for c in Comment.objects.filter(picture=p):
print(f' - {p}: {c}')


def add_user(name, email, password):
u = User.objects.get_or_create(username=name, first_name='Test', 
last_name='User', email=email)[0]
u.set_password(password)
up = UserProfile.objects.get_or_create(user=u)[0]
u.save()
return up


def add_picture(image, title, description, tag_one, tag_two, era, likes=0):
p = Picture.objects.get_or_create(image=image, title=title)[0]
p.description = description
p.tag_one = tag_one
p.tag_two = tag_two
p.era = era
p.like = likes
p.save()
return p


def add_comment(user, body):
u = User.objects.get(username=user)
up = UserProfile.objects.get(user=u)
c = Comment.objects.get_or_create(user=up, body=body)[0]
c.save()
return c


if __name__ == '__main__':
print('Starting Now And Then population script...')
populate()

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heroku goddaddy domain config

[John McClain]

Hello,

I am trying to point my GoDaddy hosted domain to my heroku app but am not
getting any love.

Trying to get the https version configured

Any suggestions?

Thanks

-- 
John McClain

Cell: 085-1977-823
Skype: jmcclain0129
Email: jmcclain0...@gmail.com

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Re: Creating test databases in parallel

[Thomas Lockhart]

If you are trying to optimize the test flow, then you may want to spend some 
time shrinking your test databases to a more manageable size. Or have two sets; 
abbreviated and full, with the larger one to exercise your (unknown) edge cases.

hth

- Tom

> On Apr 1, 2020, at 2:25 AM, cool-RR  wrote:
> 
> Hi guys,
> 
> I'm trying to optimize our Django testing workflow.
> 
> We have 7 different databases, and Django spends a lot of time on these 
> lines: 
> 
> Creating test database for alias 'main_database'...
> Creating test database for alias 'foo_database'...
> Creating test database for alias 'bar_database'...
> Creating test database for alias 'baz_database'...
> 
> This is especially annoying when you're running just one test, but have to 
> wait 1:30 minutes just for these test databases.
> 
> Is there any way to speed this up? Either by parallelizing it or in any other 
> way. A few months ago I tried some naive code that parallelizes these 
> actions, but it failed. (Unfortunately I don't have the error message saved.)
> 
> 
> Thanks,
> Ram.
> 
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>  
> .

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Re: Extending Django admin delete confirmation page

[Gagan Deep]

That doesn't work either. 😅

On Tue, Mar 31, 2020 at 12:19 PM Klaus Laube  wrote:

> Hi, Gagan.
>
> Try removing the "admin:" from your instruction: `{% extends
> "admin/delete_confirmation.html" %}`
>
> Here is the template with a possible blocks that you might overwrite:
> https://github.com/django/django/blob/master/django/contrib/admin/templates/admin/delete_confirmation.html
>
> Cheers.
>
>
> Em seg., 30 de mar. de 2020 às 23:20, Gagan Deep <
> the.one.above.all.ti...@gmail.com> escreveu:
>
>> Greetings,
>>
>> I am wondering if it is possible to extend Django Admin's delete
>> confirmation page. I tried the following but the received template does not
>> exist error page.
>>
>>> % extends 'admin:admin/delete_confirmation.html' %}
>>>
>> I refer to this website which stated it is possible to do so
>> https://book.huihoo.com/django/en/1.0/chapter17/index.html
>> I want to add a few custom actions which should require confirmation
>> before proceeding.
>>
>> Thanks and Regards
>> Gagan Deep
>>
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>> 
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>>
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> 
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Re: Associating comments with images

[Jeff Waters]

Thanks Andreas

When I do that, I get an error message: NoReverseMatch at /photo_feed/

Could the problem be with my add_comment.html?

The code for that is as follows:

{% extends 'nowandthen/base.html' %}
{% load staticfiles %}
{% block title_block %}
Add self
{% endblock %}
{% block body_block %}
Add a Comment


{% csrf_token %}
{{ form.as_p }}



{% endblock %}

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Re: Associating comments with images

[Andréas Kühne]

Yeah ok - so you should use the pictures variable to iterate over to get
the pictures and you should be fine!

Regards,

Andréas


Den ons 1 apr. 2020 kl 15:26 skrev Jeff Waters :

> Thank you Andreas.
>
> This is the views.py -
> https://github.com/EmilyQuimby/my_now_and_then/blob/master/nowandthen/views.py
>
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> .
>

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Re: Associating comments with images

[Jeff Waters]

Thank you Andreas.

This is the views.py - 
https://github.com/EmilyQuimby/my_now_and_then/blob/master/nowandthen/views.py

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Re: Associating comments with images

[Andréas Kühne]

Ok - so you are not really doing this correctly - I am guessing now.

Can you send the code for your view as well. Because I am guessing that you
aren't sending anything to the context variable "pictures".

I think the other things are more or less correct (even though there are
some issues with the html as well)

But if we start with the context variable:
{% if pictures %}

This means that you need to send a variable called pictures with the
pictures you want to display on the page. This should be populated in
your view with the pictures you want to display. The reason I don't think
this is done, is because you then use the following for loop:
 {% for p in Picture.objects.all %}

You shouldn't use the models in the templates that way - but it would be
better to do:
 {% for p in pictures %} (if you have set the variable) :)

Other than that - you have a ul tag there that seems a bit out of place :)

Regards,

Andréas


Den ons 1 apr. 2020 kl 13:43 skrev Jeff Waters :

> Thanks Andreas
>
> I think that one of the mistakes I'd made previously was to not associate
> particular comments with particular pictures.
>
> I've tried to rectify that using the code below. However, when I do this,
> the page I get is empty.
>
> Any advice would be appreciated:
>
> {% extends 'nowandthen/base.html' %}
> {% block body_block %}
> 
> 
> {% if pictures %}
> 
> {% for p in Picture.objects.all %}
> 
>   
> 
> 
>
>   
> 
>
> 
> 
>
>   
> {{
> p.title }}
>   
> {{ p.when_added }}
> 
> 
>
>   
> 
> 
> 
> 
> 
> 
>
>   
> 
> 
>
>   
> {{
> p.description }}
>   
>  aria-expanded="false" aria-controls="collapseContent">Click for
> description
> 
> 
>
> 
> 
> 
> 
> comments
> {% if not p.comments %}
> No comments
> {% endif %}
> {% for x in p.comment %}
> 
> 
> Comment by {{ x.user }}
> 
> {{ x.created_on }}
> 
> 
> {{ x.body | linebreaks }}
> 
> {% endfor %}
> 
> 
> {% if new_comment %}
> Your comment has been posted.
> {% else %}
> Leave a comment
> 
> {{ comment_form.as_p }}
> {% csrf_token %}
> Submit
> {% endif %}
> 
> 
>   
> 
> 
> {% endfor %}
> 
> {% else %}
> There are no photographs present.
> {% endif %}
>
> {% endblock %}
>
>
> Thanks
>
> Jeff
>
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Re: Associating comments with images

[Jeff Waters]

Thanks Andreas

I think that one of the mistakes I'd made previously was to not associate 
particular comments with particular pictures. 

I've tried to rectify that using the code below. However, when I do this, the 
page I get is empty. 

Any advice would be appreciated:

{% extends 'nowandthen/base.html' %}
{% block body_block %}


{% if pictures %}

{% for p in Picture.objects.all %}

  



  





  
{{ p.title 
}}
  
{{ 
p.when_added }}



  







  



  
{{ 
p.description }}
  
Click for description







comments
{% if not p.comments %}
No comments
{% endif %}
{% for x in p.comment %}


Comment by {{ x.user }}

{{ x.created_on }}


{{ x.body | linebreaks }}

{% endfor %}


{% if new_comment %}
Your comment has been posted.
{% else %}
Leave a comment

{{ comment_form.as_p }}
{% csrf_token %}
Submit
{% endif %}


  


{% endfor %}

{% else %}
There are no photographs present.
{% endif %}

{% endblock %}


Thanks

Jeff

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Getting one view function context into another view

[Irfan Khan]

Hi all,

I have detailview template there detailview view all description like
title. Date etc..,
>From that function detailview I wanted to get that title into another view
Can any one guide me

Thank you

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Re: Creating test databases in parallel

[Ram Rachum]

This is a general article about concurrency in Python. I'm very good with
concurrency in Python, I'm asking about a specific case here.

On Wed, Apr 1, 2020 at 1:20 PM Motaz Hejaze  wrote:

> Long article somehow , but very informative ...
>
> https://realpython.com/python-concurrency/
>
> On Wed, 1 Apr 2020, 11:25 am cool-RR,  wrote:
>
>> Hi guys,
>>
>> I'm trying to optimize our Django testing workflow.
>>
>> We have 7 different databases, and Django spends a lot of time on these
>> lines:
>>
>>
>> Creating test database for alias 'main_database'...
>> Creating test database for alias 'foo_database'...
>> Creating test database for alias 'bar_database'...
>> Creating test database for alias 'baz_database'...
>>
>>
>> This is especially annoying when you're running just one test, but have
>> to wait 1:30 minutes just for these test databases.
>>
>> *Is there any way to speed this up? *Either by parallelizing it or in
>> any other way. A few months ago I tried some naive code that parallelizes
>> these actions, but it failed. (Unfortunately I don't have the error message
>> saved.)
>>
>>
>> Thanks,
>> Ram.
>>
>> --
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>> email to django-users+unsubscr...@googlegroups.com.
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>> 
>> .
>>
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Re: Mobile friendly admin

[Motaz Hejaze]

Why dont we implement bootstrap for better responsive view ?

On Wed, 1 Apr 2020, 10:19 am Mike Dewhirst,  wrote:

> On 1/04/2020 7:02 pm, guettli wrote:
> > I know there a several third party packages which try to improve the
> > great django admin:
> >
> > See: https://djangopackages.org/grids/g/admin-interface/
> >
> > A lot of packages are already outdated. AFAIK no sane and simple
> > default package exists.
> >
> > I think the only solution to this would be an improvement which is not
> > a third party package.
> >
> > With other words: An update of the original admin. AFAIK no major
> > change is planed by
> > the core developers, or am I missing something?
> >
> > My goal: mobile friendly admin interface.
>
> My admin site works well on my phone. I think it is all done with clever
> smoke and mirrors in css.
>
> I have used a bit of my own css for widening some fields and that
> defeats some of the browser capabilities in both the phone and desktop.
> I mostly use Firefox.
>
> What part of it is not mobile friendly for you?
>
>
> > --
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> > To view this discussion on the web visit
> >
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> > <
> https://groups.google.com/d/msgid/django-users/7dd55582-ad0a-4967-9abf-aa7f93d6e5d6%40googlegroups.com?utm_medium=email&utm_source=footer
> >.
>
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Re: Creating test databases in parallel

[Motaz Hejaze]

Long article somehow , but very informative ...

https://realpython.com/python-concurrency/

On Wed, 1 Apr 2020, 11:25 am cool-RR,  wrote:

> Hi guys,
>
> I'm trying to optimize our Django testing workflow.
>
> We have 7 different databases, and Django spends a lot of time on these
> lines:
>
>
> Creating test database for alias 'main_database'...
> Creating test database for alias 'foo_database'...
> Creating test database for alias 'bar_database'...
> Creating test database for alias 'baz_database'...
>
>
> This is especially annoying when you're running just one test, but have to
> wait 1:30 minutes just for these test databases.
>
> *Is there any way to speed this up? *Either by parallelizing it or in any
> other way. A few months ago I tried some naive code that parallelizes these
> actions, but it failed. (Unfortunately I don't have the error message
> saved.)
>
>
> Thanks,
> Ram.
>
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> 
> .
>

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Creating test databases in parallel

[cool-RR]

Hi guys,

I'm trying to optimize our Django testing workflow.

We have 7 different databases, and Django spends a lot of time on these 
lines: 


Creating test database for alias 'main_database'...
Creating test database for alias 'foo_database'...
Creating test database for alias 'bar_database'...
Creating test database for alias 'baz_database'...


This is especially annoying when you're running just one test, but have to 
wait 1:30 minutes just for these test databases.

*Is there any way to speed this up? *Either by parallelizing it or in any 
other way. A few months ago I tried some naive code that parallelizes these 
actions, but it failed. (Unfortunately I don't have the error message 
saved.)


Thanks,
Ram.

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Re: Issue with passing parameters in urls

[aniket kamthe]

hey Antje,
Let me check and get back. I think I have got the problem, I will get back
if I have further issues.

On Wed, Apr 1, 2020 at 2:32 PM Antje Kazimiers  wrote:

> Hi Aniket,
>
> Your thread object in your template is actually a message since your
> passing messages to context in your view.
>
> but when you initialize messages you don't set a name attribute.
>
> So I would double check your Message model if it has a name attribute.
>
> btw your error message didn't display for me.
>
> Antje
> On 3/30/20 4:50 PM, aniket kamthe wrote:
>
> Hey All,
> I have been watching your youtube tutorials and have been stuck on an
> issue for a while now. Can you help me out pls -
>
> I am trying to pass a parameter via a button in an HTML file and using
> that in the next link to access a specific set of entries from the database
> -
>
> HTML File code -
>
> {% for thread in object %}
>  role="button">{{ thread.name }}  Something  {% endfor 
> %}
>
> URLs files code -
>
> path('message//', views.message, name='message'),
>
> Views files code
>
> def message(request, threadid):
>   if request.method == 'POST':
> print(request.POST.get('message'))
> m = messages(message=request.POST.get('message'), thread_id='00', 
> likes='00', Message_flags='00')
> m.save();
> if (request.method == 'POST') and ("like" in request.POST):
>   print("hi")
> data = messages.objects.all()
> context = {
>   'object': data
> }
> return render(request, 'mysite/message.html', context)
>   else:
> data = messages.objects.all()
> context = {
>   'object': data
> }
> return render(request, 'mysite/message.html', context)
>
> But I get this error, idk how to resolve this one -
>
> [image: image.png]
> Pls let me know If you are able to figure out the problem.
> --
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> 
> .
>
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> 
> .
>


-- 
Aniket Kamthe
Final year Student | Dual Degree
Department of Mechanical Engineering
Masters in Robotics
Indian Institute Of Technology Madras.
Contact : +91-9970320507
Mail id : aniketkamthe...@gmail.com

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Re: Issue with passing parameters in urls

[Antje Kazimiers]

Hi Aniket,

Your thread object in your template is actually a message since your
passing messages to context in your view.

but when you initialize messages you don't set a name attribute.

So I would double check your Message model if it has a name attribute.

btw your error message didn't display for me.

Antje

On 3/30/20 4:50 PM, aniket kamthe wrote:
> Hey All, 
> I have been watching your youtube tutorials and have been stuck on an
> issue for a while now. Can you help me out pls - 
>
> I am trying to pass a parameter via a button in an HTML file and using
> that in the next link to access a specific set of entries from the
> database - 
>
> HTML File code - 
>
> {% for thread in object %}
> role="button">{{ thread.name }} Something  {% endfor %}
> URLs files code - 
> path('message//', views.message, name='message'),
> Views files code 
> def message(request, threadid):
>   if request.method == 'POST':
> print(request.POST.get('message'))
> m = messages(message=request.POST.get('message'), thread_id='00', 
> likes='00', Message_flags='00')
> m.save();
> if (request.method == 'POST') and ("like" in request.POST):
>   print("hi")
> data = messages.objects.all()
> context = {
>   'object': data
> }
> return render(request, 'mysite/message.html', context)
>   else:
> data = messages.objects.all()
> context = {
>   'object': data
> }
> return render(request, 'mysite/message.html', context)
> But I get this error, idk how to resolve this one - 
>
> image.png
> Pls let me know If you are able to figure out the problem. 
> -- 
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> Groups "Django users" group.
> To unsubscribe from this group and stop receiving emails from it, send
> an email to django-users+unsubscr...@googlegroups.com
> .
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/django-users/deae3154-4d36-438a-9669-5698d319ed27%40googlegroups.com
> .

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Re: Mobile friendly admin

[Mike Dewhirst]

On 1/04/2020 7:02 pm, guettli wrote:
I know there a several third party packages which try to improve the 
great django admin:


See: https://djangopackages.org/grids/g/admin-interface/

A lot of packages are already outdated. AFAIK no sane and simple 
default package exists.


I think the only solution to this would be an improvement which is not 
a third party package.


With other words: An update of the original admin. AFAIK no major 
change is planed by

the core developers, or am I missing something?

My goal: mobile friendly admin interface.


My admin site works well on my phone. I think it is all done with clever 
smoke and mirrors in css.


I have used a bit of my own css for widening some fields and that 
defeats some of the browser capabilities in both the phone and desktop. 
I mostly use Firefox.


What part of it is not mobile friendly for you?



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Django bugfix releases: 3.0.5 and 2.2.12.

[Carlton Gibson]

Details are available on the Django project weblog:

https://www.djangoproject.com/weblog/2020/apr/01/bugfix-releases/

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Mobile friendly admin

[guettli]

I know there a several third party packages which try to improve the great 
django admin:

See: https://djangopackages.org/grids/g/admin-interface/

A lot of packages are already outdated. AFAIK no sane and simple default 
package exists.

I think the only solution to this would be an improvement which is not a 
third party package.

With other words: An update of the original admin. AFAIK no major change is 
planed by
the core developers, or am I missing something?

My goal: mobile friendly admin interface.

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