File: tut08_generators_and_yield.py

package info (click to toggle)
python-cherrypy 2.2.1-3etch1
  • links: PTS
  • area: main
  • in suites: etch
  • size: 804 kB
  • ctags: 1,079
  • sloc: python: 7,869; makefile: 15
file content (41 lines) | stat: -rw-r--r-- 1,104 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
"""
Bonus Tutorial: Using generators to return result bodies

Instead of returning a complete result string, you can use the yield
statement to return one result part after another. This may be convenient
in situations where using a template package like CherryPy or Cheetah
would be overkill, and messy string concatenation too uncool. ;-)
"""

import cherrypy


class GeneratorDemo:
    
    def header(self):
        return "<html><body><h2>Generators rule!</h2>"
    
    def footer(self):
        return "</body></html>"
    
    def index(self):
        # Let's make up a list of users for presentation purposes
        users = ['Remi', 'Carlos', 'Hendrik', 'Lorenzo Lamas']
        
        # Every yield line adds one part to the total result body.
        yield self.header()
        yield "<h3>List of users:</h3>"
        
        for user in users:
            yield "%s<br/>" % user
            
        yield self.footer()
    index.exposed = True

cherrypy.root = GeneratorDemo()


if __name__ == '__main__':
    cherrypy.config.update(file = 'tutorial.conf')
    cherrypy.server.start()