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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