Spewe is little Python Web Framework. Just like spew, this web framework isn't to be used anywhere. Its development is purely educational. Therefore no need to expect anything Django fancy or whatsoever
$ git clone https://github.com/josuebrunel/spewe.git
$ python spewe/setup.py installThis an example of a simple Hello World application
from spewe import Spewe
app = Spewe()
@app.route('/', methods=['GET'], name='index')
def index(request):
return 'Hello world'
if __name__ == '__main__':
app.run(port=8099)The structure of the application must be as follow:
myapp/
├── __init__.py
├── templates
│ └── login.html
└── views.pyThe template directory must be at the same level than your views.py.
views.py
from spewe.http import TempateResponse
@testapp.route('/login', methods=['POST'], template='login.html')
def login(request, *args, **kwargs):
form = request.form
context = kwargs['context']
if form['username'] == 'loking' and form['password'] == 'lokinghd':
context['authenticated'] = True
context['username'] = form['username']
else:
context['authenticated'] = False
context['error_message'] = "Invalid credentials"
return TemplateResponse(context)To use a template for your view, just pass the template name to app.route decorator. When the view will be called, a context is passed in kwargs. In order to render the template in the response, a dict object has to be returned instead of a response object.
login.html
{% if authenticated %}
<div class="authenticated">
<p>Hello {{username.capitalize}} !</p>
</div>
{% else %}
<div class="not-authenticated">
{% if error_message %}
<div class="error">{{ error_message }}</div>
{% endif %}
<form method="post" action="/login">
<input type="text" name="username">
<input type="password" name="password">
<button type="submit"> Submit </button>
</form>
</div>
{% endif %}You can check test result in test_app
Spewe template engine isn't that different from the common ones
class DataClass(object):
def __init__(self, **kwargs):
self.__dict__.update(kwargs)
class User(DataClass):
def __repr__(self):
return "<User: %s>" % self.username
def info(self):
return "%s - %s" % (self.username, self.email)
def is_authenticated(self):
return self.is_staff
class Product(DataClass):
def __repr__(self):
return "<Product: %s - %s>" % (self.name, self.price)Let's define a simple context
>>> user = User(username='cloking', email='cloking@lk.org',
fname='chelsea', lname='loking', is_staff=True)
>>> products = [
Product(name='orange', price=25), Product(name='apple', price=50),
Product(name='peach', price=10)
]
>>> context = {'user': user, 'products': products}
>>> from spewe.template import Template
>>> tpl = Template('whatever.html')The template as an html file
<html>
<head>
<title>Welcome to {{user.fname}} blog</title>
</head>
<body>
{% if not user.is_authenticated %}
<div class="not-authenticated">
<p>You need to be authenticated</p>
</div>
{% else %}
<div class="authenticated">
<div class="user-info">
{{user.info}}
</div>
<p> Hello {{user.title.capitalize}} {{user.username}} </p>
<div>
Your items above $30 are listed below
<ul>
{% loop products %}
{% if item.price >= 30 %}
<li>{{item.name}}: {{item.price}}</li>
{% endif %}
{% endloop %}
</ul>
</div>
</div>
{% endif %}
</body>
</html>Let's render the template
In [2]: print(tpl.render(context))
<html>
<head>
<title>Welcome to chelsea blog</title>
</head>
<body>
<div class="authenticated">
<div class="user-info">
cloking - cloking@lk.org
</div>
<p> Hello Mme cloking </p>
<div>
Your items above $30 are listed below
<ul>
<li>apple: 50</li>
</ul>
</div>
</div>
</body>
</html>
# let's change the user status
In [3]: user.is_staff = False
In [4]: print(tpl.render(context))
<html>
<head>
<title>Welcome to chelsea blog</title>
</head>
<body>
<div class="not-authenticated">
<p>You need to be authenticated</p>
</div>
In [5]: