A Django App for little HTML GUI applications, with easy Python/JS interoperation.
Project description
Django-Eel
Django-Eel is a Django App for HTML GUI applications, with easy Python/JS interoperation. It is a porting version of Eel.
Repo branches
- master : the master branch of Django-Eel
- eel-master : keeping sync with Eel/master
Requirements
- Django ( >=2.0.7 recommended )
- channels ( >=2.1.2 recommended )
- gevent ( >=1.3.4 recommended )
Getting Started
Installation
Download Django-Eel package from GitHub and install:
python setup.py install
Or install through PIP:
pip install git+https://github.com/seLain/django-eel
Create demo project
Create an empty django project:
django-admin startproject demo
Create examples django app:
django-admin startapp example
Add channels, django_eel, and example to demo/settings.py
INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'channels', 'django_eel', 'example', ]
Set ASGI_Application in demo/settings.py. It is required by channels.
WSGI_APPLICATION = 'demo.wsgi.application' ASGI_APPLICATION = "demo.routing.application"
Add routine.py under demo project root. The routine.py routes websocket requests to EelConsumer.
from channels.routing import ProtocolTypeRouter, URLRouter from django.conf.urls import url from django_eel.consumers import EelConsumer application = ProtocolTypeRouter({ # (http->django views is added by default) "websocket": URLRouter([ url(r"^eel$", EelConsumer), # do not alter this line ]), })
Configure demo\urls.py to route http request to eel and example respectively.
urlpatterns = [ path('admin/', admin.site.urls), url(r'^eel/', include('django_eel.urls')), # do not alter this line url(r'^example/', include('example.urls')), # set by your app name ]
That's the configuration part. Now we add a helloword example.
Create template and view
Create example\templates\example\hello.html :
<!DOCTYPE html> <html> <head> <title>Hello, World!</title> <!-- request for eel.js from django-eel, do not alter this line --> <script type="text/javascript" src="/eel/eel.js"></script> <script type="text/javascript"> eel.expose(say_hello_js); // Expose this function to Python function say_hello_js(x) { console.log("Hello from " + x); } say_hello_js("Javascript World!"); eel.say_hello_py("Javascript World!"); // Call a Python function </script> </head> <body> Hello, World! </body> </html>
This hello.html is almost the same as the original Eel example, except the request for eel.js.
Then we create the view
from django.shortcuts import render import django_eel as eel # initialize eel eel.init('example/templates/example') ########################### # Hello example ########################### def hello_page(request): # accept request for hello.html return render(request, 'example/hello.html') @eel.expose def say_hello_py(x): print('Hello from %s' % x) eel.say_hello_js('Python3 and Django World!') # call js function ########################### # Open local browser ########################### eel.start('example/hello', size=(300, 200)) # optional for off-line browsing
Finally, we have to set example\urls.py to handle the request to example pages.
from django.conf.urls import url from .views import hello_page urlpatterns = [ url(r'^hello$', hello_page), ]
Running the demo
Simply run the django project as usual:
python manage.py runserver
A browser windows should popup if this line is added in view.
eel.start('example/hello', size=(300, 200))
You can also access the hello example by browser:
http://localhost:8000/example/hello
That's it. All behaviors are basically the same as the original Eel.
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