I've run into a few problems using generators in my controller methods
to return data. I've created a test controller below that
demonstrates two things I've found so far.
The first is that using abort() from a generator method doesn't seem
to be caught properly by pylons (or maybe paste) so instead of the
client getting a 404 error, he sees a "Server Error" page (HTTP status
200).
The second issue is that the globals object seems to go away between
the time when the generator stops yielding data and when the finally
clause is executed. This only seems to happen when debug=false in the
.ini file.
Both of these problems are exhibited on a default pylons 0.9.6 project
(on my machine at least).
Cheers,
Chris
import time
from testproj.lib.base import *
class TestiterController(BaseController):
def test1(self):
abort(404)
yield "Hello World"
def test2(self):
try:
print "G is", g
g.foo = "bar"
for i in range(50):
time.sleep(0.1)
yield "%s<br/>\n" % i
finally:
print "G is", g
print g.foo
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