09_generators_and_yield.py

Revision 115 (checked in by rdelon, 4 years ago)	Removed GeneratorFilter? (this is now part of the core) and updated generator tutorial

Line
1	"""
2	Bonus Tutorial: Using generators to return result bodies
3
4	Instead of returning a complete result string, you can use the yield
5	statement to return one result part after another. This may be convenient
6	in situations where using a template package like CherryPy or Cheetah
7	would be overkill, and messy string concatenation too uncool. ;-)
8	"""
9
10	from cherrypy import cpg
11
12	class GeneratorDemo:
13	def header(self):
14	return "<html><body><h2>Generators rule!</h2>"
15
16	def footer(self):
17	return "</body></html>"
18
19	def index(self):
20	# Let's make up a list of users for presentation purposes
21	users = ['Remi', 'Carlos', 'Hendrik', 'Lorenzo Lamas']
22
23	# Every yield line adds one part to the total result body.
24	yield self.header()
25	yield "<h3>List of users:</h3>"
26
27	for user in users:
28	yield "%s<br/>" % user
29
30	yield self.footer()
31
32	index.exposed = True
33
34	cpg.root = GeneratorDemo()
35	cpg.server.start(configFile = 'tutorial.conf')

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