Re: Setting up Django for the first time, urls.py and settings.py

[Kishore Srinivas]

Always have the documentation with you while following the old 
tutorials.when I was starting Django I had big problems while using a 
tutorial in Django 1.7 with Django 1.10, nothing worked, but using 
documentation you can pretty much find what had changed 


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Re: Setting up Django for the first time, urls.py and settings.py

[Jani Tiainen]

Hi.

Urls changed so that you can't pass view as a string anymore.

If you're looking good tutorial Django Girls do have one. And it's using
recent djangi.


1.10.2017 2.40 ip. "drone4four"  kirjoitti:

> I’m playing with Django for the first time.  I am using a guide called, 
> “Python
> from Scratch - Creating a Dynamic Website
> ”  by [b]Tuts+ Code[/b] from
> YouTube.  It’s kinda old.  It was first posted in November 2011 and Django
> has evolved considerably.  I’ve had to try different commands, like
> ‘syncdb’ is no longer used.  Now it’s ‘migrate’. Yes, Tuts+ Code is over 6
> years old, but it’s the best tutorial in terms of explanations and teaching
> style. Anyways.
>
> I’m getting an error saying there is something wrong with my settings.py:
>
>> $ python ../manage.py runserver
>> Performing system checks...
>> Unhandled exception in thread started by > 0x7fe4876e76e0>
>> Traceback (most recent call last):
>>  File 
>> "/home/gnull/.local/lib/python2.7/site-packages/django/utils/autoreload.py",
>> line 228, in wrapper
>>fn(*args, **kwargs)
>>  File "/home/gnull/.local/lib/python2.7/site-packages/
>> django/core/management/commands/runserver.py", line 125, in inner_run
>>self.check(display_num_errors=True)
>>  File "/home/gnull/.local/lib/python2.7/site-packages/
>> django/core/management/base.py", line 359, in check
>>include_deployment_checks=include_deployment_checks,
>>  File "/home/gnull/.local/lib/python2.7/site-packages/
>> django/core/management/base.py", line 346, in _run_checks
>>return checks.run_checks(**kwargs)
>>  File "/home/gnull/.local/lib/python2.7/site-packages/
>> django/core/checks/registry.py", line 81, in run_checks
>>new_errors = check(app_configs=app_configs)
>>  File 
>> "/home/gnull/.local/lib/python2.7/site-packages/django/core/checks/urls.py",
>> line 16, in check_url_config
>>return check_resolver(resolver)
>>  File 
>> "/home/gnull/.local/lib/python2.7/site-packages/django/core/checks/urls.py",
>> line 26, in check_resolver
>>return check_method()
>>  File 
>> "/home/gnull/.local/lib/python2.7/site-packages/django/urls/resolvers.py",
>> line 254, in check
>>for pattern in self.url_patterns:
>>  File 
>> "/home/gnull/.local/lib/python2.7/site-packages/django/utils/functional.py",
>> line 35, in __get__
>>res = instance.__dict__[self.name] = self.func(instance)
>>  File 
>> "/home/gnull/.local/lib/python2.7/site-packages/django/urls/resolvers.py",
>> line 405, in url_patterns
>>patterns = getattr(self.urlconf_module, "urlpatterns",
>> self.urlconf_module)
>>  File 
>> "/home/gnull/.local/lib/python2.7/site-packages/django/utils/functional.py",
>> line 35, in __get__
>>res = instance.__dict__[self.name] = self.func(instance)
>>  File 
>> "/home/gnull/.local/lib/python2.7/site-packages/django/urls/resolvers.py",
>> line 398, in urlconf_module
>>return import_module(self.urlconf_name)
>>  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in
>> import_module
>>__import__(name)
>>  File 
>> "/home/gnull/Dropbox/TECH/python/2017/beginning-Django/G_Thomas/G_Thomas/urls.py",
>> line 21, in 
>>url(r'^$', 'blog.views.home', name='home')
>>  File 
>> "/home/gnull/.local/lib/python2.7/site-packages/django/conf/urls/__init__.py",
>> line 85, in url
>>raise TypeError('view must be a callable or a list/tuple in the case
>> of include().')
>> TypeError: view must be a callable or a list/tuple in the case of
>> include().
>
>
> Those last couple of lines in this error message are instructive. I’m not
> sure about the case of include() in urls.py but my url declaration indeed
> is a tuple.  Why is my shell telling me there is something wrong with my
> tuple when it should be a tuple?  I also swapped out the parentheses with
> square brackets to see if it would take a list as it says it can.  Either
> way, same error.
>
> Here are the contents of my urls.py:
>
> from django.conf.urls import *
>> from django.contrib import admin
>> admin.autodiscover()
>> urlpatterns = ['',
>> # url(r'^admin/', admin.site.urls),
>> url(r'^$', 'blog.views.home', name='home')
>> ]
>
>
> Take note of the square brackets and lack of the patterns function (as
> compared to the presence of the function in the code from the teacher
> below). Also commented out above is the default urlpattern that came with
> Django 1.11.
>
> So the urlpattern in Tuts+ Code’s actually looks like this:
>
> from django.conf.urls.defaults import patterns, include, url
>> from django.contrib import admin
>> urlpatterns = patterns (‘’,
>> url(r'^$', ‘FirstBlog.views.home’, name='home'),
>> )
>
>
> Addressing a related issue with importing the name pattern in urls.py for
> Django, some folks over on stackoverflow describe their Djanog urls.py
> 
> configuration file use a simple variable declaration for urlpatterns and
> don’t bother with the functio

Setting up Django for the first time, urls.py and settings.py

[drone4four]

I’m playing with Django for the first time.  I am using a guide called, “Python 
from Scratch - Creating a Dynamic Website 
”  by [b]Tuts+ Code[/b] from 
YouTube.  It’s kinda old.  It was first posted in November 2011 and Django 
has evolved considerably.  I’ve had to try different commands, like 
‘syncdb’ is no longer used.  Now it’s ‘migrate’. Yes, Tuts+ Code is over 6 
years old, but it’s the best tutorial in terms of explanations and teaching 
style. Anyways.

I’m getting an error saying there is something wrong with my settings.py:

> $ python ../manage.py runserver
> Performing system checks...
> Unhandled exception in thread started by  0x7fe4876e76e0>
> Traceback (most recent call last):
>  File 
> "/home/gnull/.local/lib/python2.7/site-packages/django/utils/autoreload.py", 
> line 228, in wrapper
>fn(*args, **kwargs)
>  File 
> "/home/gnull/.local/lib/python2.7/site-packages/django/core/management/commands/runserver.py",
>  
> line 125, in inner_run
>self.check(display_num_errors=True)
>  File 
> "/home/gnull/.local/lib/python2.7/site-packages/django/core/management/base.py",
>  
> line 359, in check
>include_deployment_checks=include_deployment_checks,
>  File 
> "/home/gnull/.local/lib/python2.7/site-packages/django/core/management/base.py",
>  
> line 346, in _run_checks
>return checks.run_checks(**kwargs)
>  File 
> "/home/gnull/.local/lib/python2.7/site-packages/django/core/checks/registry.py",
>  
> line 81, in run_checks
>new_errors = check(app_configs=app_configs)
>  File 
> "/home/gnull/.local/lib/python2.7/site-packages/django/core/checks/urls.py", 
> line 16, in check_url_config
>return check_resolver(resolver)
>  File 
> "/home/gnull/.local/lib/python2.7/site-packages/django/core/checks/urls.py", 
> line 26, in check_resolver
>return check_method()
>  File 
> "/home/gnull/.local/lib/python2.7/site-packages/django/urls/resolvers.py", 
> line 254, in check
>for pattern in self.url_patterns:
>  File 
> "/home/gnull/.local/lib/python2.7/site-packages/django/utils/functional.py", 
> line 35, in __get__
>res = instance.__dict__[self.name] = self.func(instance)
>  File 
> "/home/gnull/.local/lib/python2.7/site-packages/django/urls/resolvers.py", 
> line 405, in url_patterns
>patterns = getattr(self.urlconf_module, "urlpatterns", 
> self.urlconf_module)
>  File 
> "/home/gnull/.local/lib/python2.7/site-packages/django/utils/functional.py", 
> line 35, in __get__
>res = instance.__dict__[self.name] = self.func(instance)
>  File 
> "/home/gnull/.local/lib/python2.7/site-packages/django/urls/resolvers.py", 
> line 398, in urlconf_module
>return import_module(self.urlconf_name)
>  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
>__import__(name)
>  File 
> "/home/gnull/Dropbox/TECH/python/2017/beginning-Django/G_Thomas/G_Thomas/urls.py",
>  
> line 21, in 
>url(r'^$', 'blog.views.home', name='home')
>  File 
> "/home/gnull/.local/lib/python2.7/site-packages/django/conf/urls/__init__.py",
>  
> line 85, in url
>raise TypeError('view must be a callable or a list/tuple in the case of 
> include().')
> TypeError: view must be a callable or a list/tuple in the case of 
> include().


Those last couple of lines in this error message are instructive. I’m not 
sure about the case of include() in urls.py but my url declaration indeed 
is a tuple.  Why is my shell telling me there is something wrong with my 
tuple when it should be a tuple?  I also swapped out the parentheses with 
square brackets to see if it would take a list as it says it can.  Either 
way, same error.

Here are the contents of my urls.py:

from django.conf.urls import *
> from django.contrib import admin
> admin.autodiscover()
> urlpatterns = ['',
> # url(r'^admin/', admin.site.urls),
> url(r'^$', 'blog.views.home', name='home')
> ]


Take note of the square brackets and lack of the patterns function (as 
compared to the presence of the function in the code from the teacher 
below). Also commented out above is the default urlpattern that came with 
Django 1.11.  

So the urlpattern in Tuts+ Code’s actually looks like this:

from django.conf.urls.defaults import patterns, include, url
> from django.contrib import admin
> urlpatterns = patterns (‘’,
> url(r'^$', ‘FirstBlog.views.home’, name='home'),
> )


Addressing a related issue with importing the name pattern in urls.py for 
Django, some folks over on stackoverflow describe their Djanog urls.py 
 
configuration file use a simple variable declaration for urlpatterns and 
don’t bother with the function patterns() the way the YouTuber explains 
that it should look like.  Like, the YouTuber uses: ‘*urlpatterns = 
patterns( ... )*’ whereas the stackoverflow people set it as: ‘*urlpatterns 
= [ ‘’, ...]'*.  

I get the sense that I am slightly off in my understanding of the issue. 
B