[Twisted-Python] examples/row_example.py DBError Row object not in cache

[marjan cinober]

Still trying to test some postgersql access from twisted.
Unfortunate at running example ROW (Twisted Enterprise)
http://twistedmatrix.com/documents/examples/row_example.py

got stuck at
  File "row_example.py", line 58, in onInsert
    manager.deleteRow(newRoom).addCallback(onDelete)

Anybody has some clues?

Thanks

Best regards to all of you.

        Marjan Cinober

-----
I am on Linux debian testing (sarge)
Package: python2.3-twisted  Version: 1.1.0-1
Maintainer: Moshe Zadka <moshez at debian.org>

-----
$ psql test
test=# \i row_schema.sql
\q

cinober at mym:~/examples$ python row_example.py
/usr/lib/python2.3/site-packages/twisted/enterprise/row.py:135: 
DeprecationWarning: This is deprecated. Use the underlying database to 
generate keys, or just roll your own.
  warnings.warn("This is deprecated. Use the underlying database to generate 
keys, or just roll your own.", DeprecationWarning)
got Rooms. [<Room #10: testroom1 (someguy) (10,10)>, <Room #11: testroom2 
(someguy) (30,10)>, <Room #12: testroom3 (someguy) (50,10)>]
room   <Room #10: testroom1 (someguy) (10,10)>
furn      Furniture #50: room #10 (chair1) (10,10)
inner         Lamp #21
inner         Lamp #22
furn      Furniture #51: room #10 (chair2) (14,10)
furn      Rug 81: room #10, (a big rug)
furn      Rug 82: room #10, (a blue rug)
room   <Room #11: testroom2 (someguy) (30,10)>
furn      Rug 83: room #11, (a red rug)
furn      Rug 84: room #11, (a green rug)
room   <Room #12: testroom3 (someguy) (50,10)>
furn      Furniture #52: room #12 (chair3) (14,10)
furn      Furniture #53: room #12 (chair4) (10,12)
inner         Lamp #23
inner         Lamp #24
inner         Lamp #25
furn      Furniture #54: room #12 (chair5) (18,13)
furn      Furniture #55: room #12 (couch) (22,3)
furn      Rug 85: room #12, (a dirty rug)
updated row.
row inserted
100001

******** BLOCKED *********  Forced to <Ctrl>-C

Traceback (most recent call last):
  File "/usr/lib/python2.3/site-packages/twisted/internet/default.py", line 
130, in mainLoop
    self.runUntilCurrent()
  File "/usr/lib/python2.3/site-packages/twisted/internet/base.py", line 
403, in runUntilCurrent
    callable(*args, **kw)
  File "/usr/lib/python2.3/site-packages/twisted/internet/defer.py", line 
224, in callback
    self._startRunCallbacks(result)
  File "/usr/lib/python2.3/site-packages/twisted/internet/defer.py", line 
293, in _startRunCallbacks
    self._runCallbacks()
--- <exception caught here> ---
--- <exception caught here> ---
  File "/usr/lib/python2.3/site-packages/twisted/internet/defer.py", line 
307, in _runCallbacks
    self.result = callback(self.result, *args, **kw)
  File "row_example.py", line 58, in onInsert
    manager.deleteRow(newRoom).addCallback(onDelete)
  File 
"/usr/lib/python2.3/site-packages/twisted/enterprise/sqlreflector.py", line 
330, in deleteRow
    self.removeFromCache(rowObject)
  File "/usr/lib/python2.3/site-packages/twisted/enterprise/reflector.py", 
line
141, in removeFromCache
    raise DBError("Row object not in cache: %s", rowObject)
twisted.enterprise.util.DBError: ('Row object not in cache: %s', <Room 
#100001:
newRoom1 (fred) (100,100)>)

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