Python web framework
Institute for Environmental and Spatial Analysis...University of North Georgia
Contents
1 Web server gateway interface (WSGI)
2 Bottle
Install Bottle
pip install bottle3 First web server
webapp.py
# import the bottle module and create a new namespace "bottle"
import bottle
# in this decoration pattern, we'll respond to a URL http://localhost:8080/hello/<name>
@bottle.route("/hello/<name>")
def hello(name):
# when we respond to the URL, we'll pass Hello <name> content to the client
return bottle.template("Hello {{name}}!", name=name)
# let's run an experimental server on port 8080 on this machine (localhost)
bottle.run(host="localhost", port=8080)4 Using from import
webapp.py
# import only route, template, and run from the bottle module
from bottle import route, template, run
# in this decoration pattern, we'll respond to a URL http://localhost:8080/hello/<name>
@route("/hello/<name>")
def hello(name):
# when we respond to the URL, we'll pass Hello <name> content to the client
return template("Hello {{name}}!", name=name)
# let's run an experimental server on port 8080 on this machine (localhost)
run(host="localhost", port=8080)5 Using template files
webapp.py
from bottle import route, template, run
@route("/hello/<name>")
def hello(name):
return template("hello", name=name)
run(host="localhost", port=8080)hello.tpl
<!doctype html>
<html>
<head>
<title>Hello {{name}}!</title>
</head>
<body>
Hello {{name}}!
</body>
</html>6 Responding to multiple GET requests
webapp.py
from bottle import route, template, run
@route("/hello/<name>/<cls>")
def hello(name, cls):
return template("hello", name=name, cls=cls)
@route("/bye/<name>")
def bye(name):
return template("bye", name=name)
run(host="localhost", port=8080)hello.py
<!doctype html>
<html>
<head>
<title>Hello {{name}}!</title>
</head>
<body>
<h1>Hello {{name}}!</h1>
<h2>Welcome to {{cls}}!</h2>
</body>
</html>bye.tpl
<!doctype html>
<html>
<head>
<title>Bye {{name}}!</title>
</head>
<body>
Bye {{name}}!
</body>
</html>