5 ms·

Django 1.8 and Python 3: Complex app tutorial, end-to-end

185 points by dlcmh 11y ago

elnygren 11y ago
the boilerplate seems to ignore django's "multiapp" project layout: |-manage.py |-MyApp/ |---- settings.py, urls.py, wsgi.py,... etc. |-AnotherApp1 |---- urls.py, models.py, views.py, migrations/... etc. |-AnotherApp2 |---- urls.py, models.py, views.py, migrations/... etc. This might make it not-that-suitable for actually complex projects. EDIT: ah, looks like the formatting here did't support what I tried to do...
- pestaa 11y ago
  Indent the tree with 4 spaces.
- yasoob 11y ago
  Something like this probably? |-manage.py |-MyApp/ |---- settings.py, urls.py, wsgi.py,... etc. |-AnotherApp1 |---- urls.py, models.py, views.py, migrations/... etc. |-AnotherApp2 |---- urls.py, models.py, views.py, migrations/..
- rylee 11y ago
  Err, are `AnotherApp{1,2}` intentionally missing `settings.py`, and all the other incongruencies? I'd think that `AnotherApp{1,2}` would be subdirectories of `MyApp/`, right?
  - jmelloy 11y ago
    There's only one settings file, which is defined in the first/main app.
clarkie13 11y ago
I've been doing PHP for 6 years and this tutorial made me really want to play with Python.
bsaul 11y ago
Just looked at the summary, but it doesn't seem to include a chapter on asynchronous jobs ( such as report creations, emailing, or any kind of long running tasks). Along with websockets / push architecture, this is often when website designs start to be really complex.
- anhtran 11y ago
  The issues in sample project are regular challenges. I also think it's not a complex project without real-time parts, searching, async and concurrency tasks. Especially in Python 3.
- joelhaasnoot 11y ago
  Django makes asynchronous jobs very easy through "management commands" - simple but perfect framework for running any kind of job. The sample runs on Heroku - use a job scheduler and run your commands. Alternative is to use something like Celery: http://docs.celeryproject.org/en/latest/index.html http://docs.celeryproject.org/en/latest/index.html
  - bsaul 11y ago
    Yeap, celery is really when i started to feel the pain of using python rather than a more enterprise-ready language&framework. Although in my case it wasn't using it with django but with flask ( but i don't think it makes a big difference). The main issues when you start to have a stack built of big independant systems ( such as a db, a message queue, worker processes, and web server) are more related to deployment, monitoring and failover management. But they are really the big issues that justify the choice of a technology instead of another.
    - switch007 11y ago
      I understand the complexity in python of tying together Flask + Celery + DB + app server etc, but what would you use instead (your comment seems to imply there's a language/framework that has the aforementioned things bundles/more integrated)?
arocks 11y ago
It will surely work in Django 1.8. But whether the Django 1.8 recommendations like turning `urlpattern` into a list [1] or using `TEMPLATES` setting [2] have been applied is a different matter altogether. [1]: https://github.com/mineta/taskbuster-boilerplate/blob/master/taskbuster/urls.py#L7 https://github.com/mineta/taskbuster-boilerplate/blob/master... [2]: https://github.com/mineta/taskbuster-boilerplate/blob/master/taskbuster/settings/base.py#L98 https://github.com/mineta/taskbuster-boilerplate/blob/master...
- graffitici 11y ago
  Can you point me to a list of such recommendations for Django 1.8? Are these official ones?
  - amarsahinovic 11y ago
    It is in the official release notes: https://docs.djangoproject.com/en/1.8/releases/1.8/#template-related-settings https://docs.djangoproject.com/en/1.8/releases/1.8/#template... https://docs.djangoproject.com/en/1.8/releases/1.8/#django-conf-urls-patterns https://docs.djangoproject.com/en/1.8/releases/1.8/#django-c...
- marinamele 11y ago
  Thanks arocks! I'll update that!
  - marinamele 11y ago
    Done! :-)
alashley 11y ago
Nice tutorial :) I really appreciate that it covers a lot of the bases and doesn't assume the reader will only ever run on localhost (like many others do). I'm sure given that its a good start with Django, the gaps identified in the comments here can be filled in later via google or further tutorials in your series.
- mlitwiniuk 11y ago
  (shameless self promotion) we've just released something similar, but for Ruby on Rails - https://prograils.com/courses/saas/ch/01-the-welcome-word https://prograils.com/courses/saas/ch/01-the-welcome-word - our plan is to make step-by-step tutorial on creating quite complex todo-like saas app.
matthijs_ 11y ago
Great job. For me personally, it's very helpful to have an end-to-end tutorial, where all aspects of an (example) app are discussed. I don't have a CS-background nor many years of coding experience, so a tutorial written by somebody who does have the proper experience and knowledge and puts it all together is extremely valuable to me. That's why I'd happily pay a fee for tutorials like this. At the moment I'm working on building an app in Node.js with Express and sadly, there are not many tutorials of this quality.

185 points by dlcmh 11y ago

the boilerplate seems to ignore django's "multiapp" project layout: |-manage.py |-MyApp/ |---- settings.py, urls.py, wsgi.py,... etc. |-AnotherApp1 |---- urls.py, models.py, views.py, migrations/... etc. |-AnotherApp2 |---- urls.py, models.py, views.py, migrations/... etc. This might make it not-that-suitable for actually complex projects. EDIT: ah, looks like the formatting here did't support what I tried to do...

pestaa 11y ago
Indent the tree with 4 spaces.
yasoob 11y ago
Something like this probably? |-manage.py |-MyApp/ |---- settings.py, urls.py, wsgi.py,... etc. |-AnotherApp1 |---- urls.py, models.py, views.py, migrations/... etc. |-AnotherApp2 |---- urls.py, models.py, views.py, migrations/..
rylee 11y ago
Err, are `AnotherApp{1,2}` intentionally missing `settings.py`, and all the other incongruencies? I'd think that `AnotherApp{1,2}` would be subdirectories of `MyApp/`, right?
- jmelloy 11y ago
  There's only one settings file, which is defined in the first/main app.

clarkie13 11y ago

I've been doing PHP for 6 years and this tutorial made me really want to play with Python.

bsaul 11y ago

Just looked at the summary, but it doesn't seem to include a chapter on asynchronous jobs ( such as report creations, emailing, or any kind of long running tasks). Along with websockets / push architecture, this is often when website designs start to be really complex.

anhtran 11y ago
The issues in sample project are regular challenges. I also think it's not a complex project without real-time parts, searching, async and concurrency tasks. Especially in Python 3.
joelhaasnoot 11y ago
Django makes asynchronous jobs very easy through "management commands" - simple but perfect framework for running any kind of job. The sample runs on Heroku - use a job scheduler and run your commands. Alternative is to use something like Celery: http://docs.celeryproject.org/en/latest/index.html http://docs.celeryproject.org/en/latest/index.html
- bsaul 11y ago
  Yeap, celery is really when i started to feel the pain of using python rather than a more enterprise-ready language&framework. Although in my case it wasn't using it with django but with flask ( but i don't think it makes a big difference). The main issues when you start to have a stack built of big independant systems ( such as a db, a message queue, worker processes, and web server) are more related to deployment, monitoring and failover management. But they are really the big issues that justify the choice of a technology instead of another.
  - switch007 11y ago
    I understand the complexity in python of tying together Flask + Celery + DB + app server etc, but what would you use instead (your comment seems to imply there's a language/framework that has the aforementioned things bundles/more integrated)?

arocks 11y ago

It will surely work in Django 1.8. But whether the Django 1.8 recommendations like turning `urlpattern` into a list [1] or using `TEMPLATES` setting [2] have been applied is a different matter altogether. [1]: https://github.com/mineta/taskbuster-boilerplate/blob/master/taskbuster/urls.py#L7 https://github.com/mineta/taskbuster-boilerplate/blob/master... [2]: https://github.com/mineta/taskbuster-boilerplate/blob/master/taskbuster/settings/base.py#L98 https://github.com/mineta/taskbuster-boilerplate/blob/master...

graffitici 11y ago
Can you point me to a list of such recommendations for Django 1.8? Are these official ones?
- amarsahinovic 11y ago
  It is in the official release notes: https://docs.djangoproject.com/en/1.8/releases/1.8/#template-related-settings https://docs.djangoproject.com/en/1.8/releases/1.8/#template... https://docs.djangoproject.com/en/1.8/releases/1.8/#django-conf-urls-patterns https://docs.djangoproject.com/en/1.8/releases/1.8/#django-c...
marinamele 11y ago
Thanks arocks! I'll update that!
- marinamele 11y ago
  Done! :-)

alashley 11y ago

Nice tutorial :) I really appreciate that it covers a lot of the bases and doesn't assume the reader will only ever run on localhost (like many others do). I'm sure given that its a good start with Django, the gaps identified in the comments here can be filled in later via google or further tutorials in your series.

mlitwiniuk 11y ago
(shameless self promotion) we've just released something similar, but for Ruby on Rails - https://prograils.com/courses/saas/ch/01-the-welcome-word https://prograils.com/courses/saas/ch/01-the-welcome-word - our plan is to make step-by-step tutorial on creating quite complex todo-like saas app.

matthijs_ 11y ago

Great job. For me personally, it's very helpful to have an end-to-end tutorial, where all aspects of an (example) app are discussed. I don't have a CS-background nor many years of coding experience, so a tutorial written by somebody who does have the proper experience and knowledge and puts it all together is extremely valuable to me. That's why I'd happily pay a fee for tutorials like this. At the moment I'm working on building an app in Node.js with Express and sadly, there are not many tutorials of this quality.