Re: [Zope-Checkins] CVS: Zope/lib/python/nt_svcutils - service.py:1.1.2.2

2005-04-18 Thread Tim Peters
Mark and Sidnei, question for you.  I work on ZRS, which, alas, I
can't pass out code for.  Its Windows service drivers subclass the
Service class in Zope's nt_svcutils/service.py.

I'm trying to build a new ZRS release.  Trying to stop the ZRS service
now suddenly and for no reason at all wink logs an error, because
I believe its onStop() method is getting called twice now, but used to
be called only once.  That's no good for ZRS, because its onStop
method makes a connection to a special shutdown port, and ZRS proper
responds by shutting ZRS down.  The socket goes away along with it, so
trying to connect to the shutdown port a second time raises an
exception.

I'm not entirely sure why this didn't used to happen.  I'm guessing
that a stop request with the current code:

1. Triggers SvcStop, which calls onStop() and sets hWaitStop.
2. Setting hWaitStop in turn triggers the WaitForMultipleObjects in run(),
   and then that calls SvcStop again (which calls onStop() again).

Anyway, is this bug or feature?  If it's a feature, I can make the ZRS
subclass onStop() methods safe to call multiple times.  It doesn't
_feel_ like a feature, though wink.
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[Zope-Coders] Zope Bugs, Features, and Patches Collector: Open Issues

2005-04-18 Thread tseaver
The following supporters have open issues assigned to them in this collector
(http://www.zope.org/Collectors/Zope).

Assigned and Open


  Brian

- ZPT not being processed with text/vnd.wap.wml mime type,
  [Accepted] http://www.zope.org/Collectors/Zope/968


  Caseman

- ZCTextUndex should not hold a reference to a lexicon,
  [Accepted] http://www.zope.org/Collectors/Zope/505

- locale based sorting in ZCatalog,
  [Accepted] http://www.zope.org/Collectors/Zope/738


  LRA

- FileUpload not iterable,
  [Accepted] http://www.zope.org/Collectors/Zope/1199


  Tiran

- Zope 2.7 doesnot serve pages to some accept-charset request headers,
  [Accepted] http://www.zope.org/Collectors/Zope/1492


  ajung

- manage_catalogIndexes: '# objects' is misleading,
  [Accepted] http://www.zope.org/Collectors/Zope/1587

- Multilingual search gives a wrong results.,
  [Accepted] http://www.zope.org/Collectors/Zope/1343

- WebDAV broken in 2.7.0-b3,
  [Accepted] http://www.zope.org/Collectors/Zope/1145

- Mount-Points: documentation incomplete, behaviour surprising,
  [Accepted] http://www.zope.org/Collectors/Zope/1487

- Need a way to include non-xml valid structure in ZPT attributes,
  [Accepted] http://www.zope.org/Collectors/Zope/1281


  chrism

- ZODBMountPoint should not monkey-patch ZODB,
  [Accepted] http://www.zope.org/Collectors/Zope/1525

- poor error reporting on product initialization failure under windows,
  [Accepted] http://www.zope.org/Collectors/Zope/1020

- Potential bug in Python cgi.FieldStorage can lead to problematic memory 
growth,
  [Accepted] http://www.zope.org/Collectors/Zope/1685

- TemporaryStorage should be made MVCC-capable on HEAD,
  [Accepted] http://www.zope.org/Collectors/Zope/1526

- Lurking CPU eater in Transience,
  [Accepted] http://www.zope.org/Collectors/Zope/1633


  chrisw

- security.declareObjectProtected('View') appears to be buggy,
  [Accepted] http://www.zope.org/Collectors/Zope/1264

- Zope 2.7.3b1 DAV server doesn't provide DAV header,
  [Accepted] http://www.zope.org/Collectors/Zope/1518

- VHM and ZCatalog absolute paths,
  [Accepted] http://www.zope.org/Collectors/Zope/608

- default page encoding hardcoded to latin1,
  [Accepted] http://www.zope.org/Collectors/Zope/1490

- Debug Information Illegible,
  [Accepted] http://www.zope.org/Collectors/Zope/1736

- Windows Linefeeds in ZPT,
  [Accepted] http://www.zope.org/Collectors/Zope/1464


  ctheune

- hasattr_unacquired,
  [Accepted] http://www.zope.org/Collectors/Zope/742

- Shutdown ZEO Server under Windows,
  [Accepted] http://www.zope.org/Collectors/Zope/1508


  dreamcatcher

- PropertySheets xml_escape method with hardcoded encoding,
  [Accepted] http://www.zope.org/Collectors/Zope/1561


  efge

- default page encoding hardcoded to latin1,
  [Accepted] http://www.zope.org/Collectors/Zope/1490

- ZCatalog getObject broken,
  [Accepted] http://www.zope.org/Collectors/Zope/1713


  evan

- Cant declare classes in Scripts with 2.7 and Python 2.3,
  [Accepted] http://www.zope.org/Collectors/Zope/1074


  fdrake

- ZCTextUndex should not hold a reference to a lexicon,
  [Accepted] http://www.zope.org/Collectors/Zope/505

- [Weakness] analysis of Zope startup problems (log hidden),
  [Accepted] http://www.zope.org/Collectors/Zope/1285

- FTP server does not implement MLSD or MLST,
  [Accepted] http://www.zope.org/Collectors/Zope/1161

- Make possible to configure non-default logger hierarchies via zope.conf,
  [Accepted] http://www.zope.org/Collectors/Zope/1555


  htrd

- startup ConflictError,
  [Deferred] http://www.zope.org/Collectors/Zope/300


  jeremy

- Transaction Manager Brokenness,
  [Accepted] http://www.zope.org/Collectors/Zope/701

- ZODB load state error,
  [Accepted] http://www.zope.org/Collectors/Zope/1204


  jim

- aq_acquire on u'aq_parent',
  [Accepted] http://www.zope.org/Collectors/Zope/1738


  mcdonc

- filestream_iterator handling is not implemented for FastCGI protocol.,
  [Accepted] http://www.zope.org/Collectors/Zope/1647


  mj

- expectMultipleRanges test should use email package,
  [Accepted] http://www.zope.org/Collectors/Zope/579


  mjablonski

- Error in zmi when an object is named 'URL' or 'URL1',
  [Accepted] http://www.zope.org/Collectors/Zope/1217


  slinkp

- AcceleratedHTTPCacheManager doesn't PURGE correctly for virtual hosts,
  [Accepted] http://www.zope.org/Collectors/Zope/1447


  tim_one

- Zope 2.8/ZODB 3.3: Update all cPickle.Pickler instances to use protocal 
2,
  [Accepted] http://www.zope.org/Collectors/Zope/1519

- ZCTextUndex should not hold a reference to a lexicon,
  [Accepted] http://www.zope.org/Collectors/Zope/505

- ZODB load state 

[Zope-Coders] Zope tests: 6 OK

2005-04-18 Thread Zope tests summarizer
Summary of messages to the zope-tests list.
Period Sun Apr 17 11:01:02 2005 UTC to Mon Apr 18 11:01:02 2005 UTC.
There were 6 messages: 6 from Zope Unit Tests.


Tests passed OK
---

Subject: OK : Zope-2_6-branch Python-2.1.3 : Linux
From: Zope Unit Tests
Date: Sun Apr 17 22:41:11 EDT 2005
URL: http://mail.zope.org/pipermail/zope-tests/2005-April/001959.html

Subject: OK : Zope-2_6-branch Python-2.3.5 : Linux
From: Zope Unit Tests
Date: Sun Apr 17 22:42:41 EDT 2005
URL: http://mail.zope.org/pipermail/zope-tests/2005-April/001960.html

Subject: OK : Zope-2_7-branch Python-2.3.5 : Linux
From: Zope Unit Tests
Date: Sun Apr 17 22:44:11 EDT 2005
URL: http://mail.zope.org/pipermail/zope-tests/2005-April/001961.html

Subject: OK : Zope-2_7-branch Python-2.4.1 : Linux
From: Zope Unit Tests
Date: Sun Apr 17 22:45:41 EDT 2005
URL: http://mail.zope.org/pipermail/zope-tests/2005-April/001962.html

Subject: OK : Zope-trunk Python-2.3.5 : Linux
From: Zope Unit Tests
Date: Sun Apr 17 22:47:12 EDT 2005
URL: http://mail.zope.org/pipermail/zope-tests/2005-April/001963.html

Subject: OK : Zope-trunk Python-2.4.1 : Linux
From: Zope Unit Tests
Date: Sun Apr 17 22:48:42 EDT 2005
URL: http://mail.zope.org/pipermail/zope-tests/2005-April/001964.html

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Re: [Zope-dev] Turning off product installation in zope.conf on all zeo clients?

2005-04-18 Thread Chris Withers
Jens Vagelpohl wrote:
What happens if you turn this off in all zeo clients?
New products don't get installed..?
Okay, but what does installed mean?
Would it actually stop new instances of object classes provided by the 
product being instantiated, or would it just prevent help pages and 
other conflict-error-on-startup-y things from happening?

cheers,
Chris
--
Simplistix - Content Management, Zope  Python Consulting
   - http://www.simplistix.co.uk
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Re: [Zope-dev] Turning off product installation in zope.conf on all zeo clients?

2005-04-18 Thread Jens Vagelpohl
On Apr 18, 2005, at 16:25, Chris Withers wrote:
Jens Vagelpohl wrote:
What happens if you turn this off in all zeo clients?
New products don't get installed..?
Okay, but what does installed mean?
Would it actually stop new instances of object classes provided by the 
product being instantiated, or would it just prevent help pages and 
other conflict-error-on-startup-y things from happening?
From what I understand it prevents the installation/writing of a 
product into the ZODB (the products management part of the 
Control_Panel) and thus prevents conflict errors. If the product is 
already installed (e.g. by a client who is allowed to do so) then you 
can instantiate instances of your new product. The setting does not 
prevent that.

jens
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[Zope] Restart button in Control Panel

2005-04-18 Thread Milos Prudek
Is it possible to have the Restart button in ZMI Control Panel? I only 
have Shutdown. What controls this? I start my Zope instance with 
instance/bin/runzope .

I use Zope 2.7.4.
--
Milos Prudek
http://www.spoxdesign.com - your web usability testing
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Re: [Zope] Restart button in Control Panel

2005-04-18 Thread Jake
You are starting it in Debug mode, which means it will not allow for the
restart button.

/etc/zope.conf (edit debug mode)

Also, try running it with:

/bin/zopectl start 

Jake
-- 
http://www.ZopeZone.com


Milos Prudek said:
 Is it possible to have the Restart button in ZMI Control Panel? I only
 have Shutdown. What controls this? I start my Zope instance with
 instance/bin/runzope .

 I use Zope 2.7.4.

 --
 Milos Prudek
 http://www.spoxdesign.com - your web usability testing
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[Zope] non-undoable storage

2005-04-18 Thread Milos Prudek
I have a couple hundred Articles (class instances) in my ZODB. Most 
instances are 200 kB, some are much larger. One of the Article 
properties is Number of times the article was read. Any increment causes 
ZODB to grow by the size of the given instance, due to the fact that 
ZODB will append a new version of the whole 200 kB or 2MB instance just 
because a single byte was changed.

Consequently ZODB grows several hundred MB in a single day even if no 
new article is added.

This calls for some form of non-undoable storage.
One possibility is to move the NumberOfReaders attribute from ZODB to 
my SQL server. Not a problem, but I'm not sure what is the best way to 
maintain connection between ZODB instance (it can appear at different 
places in ZODB directory structure and it can be moved from place to 
place with Cut and Paste in ZMI) and SQL table. Connection means SQL key 
column. Instance ids cannot be used as a SQL key, because they are 
nonunique - each folder has a sequence of instances numbered 1...x. So 
there are over ten instances named 1. Instance addresses = URLs could 
be used but I would have to write my own methods / interfaces for moving 
Articles in the directory structure to maintain the connection between 
ZODB and SQL table.

Is there an obvious elegant solution that I am missing?
--
Milos Prudek
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Re: [Zope] non-undoable storage

2005-04-18 Thread Paul Winkler
On Mon, Apr 18, 2005 at 02:38:01PM +0200, Milos Prudek wrote:
 I have a couple hundred Articles (class instances) in my ZODB. Most 
 instances are 200 kB, some are much larger. One of the Article 
 properties is Number of times the article was read. Any increment causes 
 ZODB to grow by the size of the given instance, due to the fact that 
 ZODB will append a new version of the whole 200 kB or 2MB instance just 
 because a single byte was changed.
 
 Consequently ZODB grows several hundred MB in a single day even if no 
 new article is added.
 
 This calls for some form of non-undoable storage.
 
 One possibility is to move the NumberOfReaders attribute from ZODB to 
 my SQL server. Not a problem, but I'm not sure what is the best way to 
 maintain connection between ZODB instance (it can appear at different 
 places in ZODB directory structure and it can be moved from place to 
 place with Cut and Paste in ZMI) and SQL table. Connection means SQL key 
 column. Instance ids cannot be used as a SQL key, because they are 
 nonunique - each folder has a sequence of instances numbered 1...x. So 
 there are over ten instances named 1. Instance addresses = URLs could 
 be used but I would have to write my own methods / interfaces for moving 
 Articles in the directory structure to maintain the connection between 
 ZODB and SQL table.
 
 Is there an obvious elegant solution that I am missing?

You might consider replacing the NumberOfReaders attribute with a
first-class persistent object.  e.g. you could use a PersistentList or
IIBTree or some such.  This would prevent Zope from saving the entire
Article object when that one attribute changes. You'd still get some
bloat from all the historical revisions of the attribute, but it would
be MUCH less.  

e.g. something like:

from ZODB import PersistentList

class Article(...):

def __init__(self):
...
self._numberOfReaders = PersistentList([0])

def getNumberOfReaders(self):
return self._numberOfReaders[0]

def incrementNumberOfReaders(self):
# do NOT set self._p_changed = 1
self._numberOfReaders[0] = += 1 


You could then have NumberOfProperties become a ComputedAttribute
to allow client code to keep accessing it as an attribute.
(this is a read-only property in recent versions of Python,
not to be confused with Zope's properties; but Zope doesn't
support pythonic properties yet.)

e.g.:

NumberOfReaders= ComputedAttribute(getNumberOfReaders)


But AFAIK, ComputedAttributes don't support write methods.
So client code can't write someArticle.NumberOfReaders += 1.
But then, you wouldn't be able to do that with a SQL-based
solution either.
 
-- 

Paul Winkler
http://www.slinkp.com
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Re: [Zope] non-undoable storage

2005-04-18 Thread Florent Guillaume
Paul Winkler  [EMAIL PROTECTED] wrote:
 On Mon, Apr 18, 2005 at 02:38:01PM +0200, Milos Prudek wrote:
  I have a couple hundred Articles (class instances) in my ZODB. Most 
  instances are 200 kB, some are much larger. One of the Article 
  properties is Number of times the article was read. Any increment causes 
  ZODB to grow by the size of the given instance, due to the fact that 
  ZODB will append a new version of the whole 200 kB or 2MB instance just 
  because a single byte was changed.
  
  Consequently ZODB grows several hundred MB in a single day even if no 
  new article is added.
  
  This calls for some form of non-undoable storage.
  
  Is there an obvious elegant solution that I am missing?
 
 You might consider replacing the NumberOfReaders attribute with a
 first-class persistent object.  e.g. you could use a PersistentList or
 IIBTree or some such.  This would prevent Zope from saving the entire
 Article object when that one attribute changes. You'd still get some
 bloat from all the historical revisions of the attribute, but it would
 be MUCH less.  

A better candidate, rather than PersistentList, would be a BTrees.Length.

Florent


-- 
Florent Guillaume, Nuxeo (Paris, France)   CTO, Director of RD
+33 1 40 33 71 59   http://nuxeo.com   [EMAIL PROTECTED]
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[Zope] tal:attributes and extra newline

2005-04-18 Thread Pascal Peregrina
Hi,

I would like to know the reason why tal:attributes adds an extra newline for
each generated tag attribute.
This just makes generated HTML bigger...

Thanks.

Pascal


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Re: [Zope] tal:attributes and extra newline

2005-04-18 Thread Andreas Jung

--On Montag, 18. April 2005 16:31 Uhr +0200 Pascal Peregrina 
[EMAIL PROTECTED] wrote:

Hi,
I would like to know the reason why tal:attributes adds an extra newline
for each generated tag attribute.
This just makes generated HTML bigger...
It generates *only newlines if *you* generate multiple attributes using a
single tal:attributes statement on *multiple* lines...so it's your 
application...

-aj

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RE: [Zope] tal:attributes and extra newline

2005-04-18 Thread Pascal Peregrina
Ok, it was TALInterpreter after all, but you need a long list of attributes
(on a single line / single tal:attributes statement I mean)...
It's because of the TAL.TALInterpreter.TALInterpreter.wrap value defaulting
to 60 (see __init__)
I managed, in my object that relies on PageTemplate, to set warp to 0 and I
got no more extra newlines.

So, just to know, why is the default value 60 ?

Pascal


-Message d'origine-
De : Andreas Jung [mailto:[EMAIL PROTECTED]
Envoyé : lundi 18 avril 2005 16:57
À : Pascal Peregrina; 'zope@zope.org'
Objet : Re: [Zope] tal:attributes and extra newline




--On Montag, 18. April 2005 16:31 Uhr +0200 Pascal Peregrina 
[EMAIL PROTECTED] wrote:

 Hi,

 I would like to know the reason why tal:attributes adds an extra newline
 for each generated tag attribute.
 This just makes generated HTML bigger...

It generates *only newlines if *you* generate multiple attributes using a
single tal:attributes statement on *multiple* lines...so it's your 
application..

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RE: [Zope] tal:attributes and extra newline

2005-04-18 Thread Andreas Jung

--On Montag, 18. April 2005 17:55 Uhr +0200 Pascal Peregrina 
[EMAIL PROTECTED] wrote:

Ok, it was TALInterpreter after all, but you need a long list of
attributes (on a single line / single tal:attributes statement I mean)...
It's because of the TAL.TALInterpreter.TALInterpreter.wrap value
defaulting to 60 (see __init__)
I managed, in my object that relies on PageTemplate, to set warp to 0 and
I got no more extra newlines.
So, just to know, why is the default value 60 ?
It could be 42 or 120 or 800 :-)
-aj

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RE: [Zope] tal:attributes and extra newline

2005-04-18 Thread Pascal Peregrina
Ok, silly question then... :)
Let's stop this thread now.
Thanks for the answers.

Pascal

-Message d'origine-
De : Fred Drake [mailto:[EMAIL PROTECTED]
Envoyé : lundi 18 avril 2005 18:04
À : Pascal Peregrina
Cc : zope@zope.org
Objet : Re: [Zope] tal:attributes and extra newline


On 4/18/05, Pascal Peregrina [EMAIL PROTECTED] wrote:
 So, just to know, why is the default value 60 ?

I think just because Guido wrote it that way.  I don't know that
there's anything special about the value.


  -Fred

-- 
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Zope Corporation


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Re: [Zope] non-undoable storage

2005-04-18 Thread Milos Prudek
from ZODB import PersistentList
Interesting. I'll look at this idea. I never heard of this class.
You could then have NumberOfProperties become a ComputedAttribute

But AFAIK, ComputedAttributes don't support write methods.
Um, are you saying that the solution would actually not work for my use 
case?

So client code can't write someArticle.NumberOfReaders += 1.
But then, you wouldn't be able to do that with a SQL-based
solution either.
Why not? It's easy to write ZSQL method to update data. Probably we do 
not understand each other.

--
Milos Prudek
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Re: [Zope] non-undoable storage

2005-04-18 Thread Milos Prudek
A better candidate, rather than PersistentList, would be a BTrees.Length.
Never heard about this. Why is it better? What does it do? Where can I 
find more info about it?

--
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Re: [Zope] non-undoable storage

2005-04-18 Thread Florent Guillaume
Milos Prudek  [EMAIL PROTECTED] wrote:
  A better candidate, rather than PersistentList, would be a BTrees.Length.
 
 Never heard about this. Why is it better? What does it do? Where can I 
 find more info about it?

It's designed to be a counter and does automatic conflict resolution. It
was mentionned a number of times in the past on the zope and zodb-dev
lists.

Florent

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Re: [Zope] non-undoable storage

2005-04-18 Thread Paul Winkler
On Mon, Apr 18, 2005 at 06:29:49PM +0200, Milos Prudek wrote:
 from ZODB import PersistentList
 
 Interesting. I'll look at this idea. I never heard of this class.
 
 You could then have NumberOfProperties become a ComputedAttribute
 
 But AFAIK, ComputedAttributes don't support write methods.
 
 Um, are you saying that the solution would actually not work for my use 
 case?

If your use case is that a writable attribute is part of
your class' API, then yes I am saying that.

If your count is always updated by methods of the class anyway,
then you're fine.
 
 So client code can't write someArticle.NumberOfReaders += 1.
 But then, you wouldn't be able to do that with a SQL-based
 solution either.
 
 Why not? It's easy to write ZSQL method to update data. Probably we do 
 not understand each other.

Probably not. If you had an SQL solution, and some client code
said someArticle.NumberOfReaders += 1, how would you get that
assignment to fire off your SQL code?

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Re: [Zope] non-undoable storage

2005-04-18 Thread Milos Prudek
Probably not. If you had an SQL solution, and some client code
said someArticle.NumberOfReaders += 1, how would you get that
assignment to fire off your SQL code?
I would have to calculate the key, so simple assignment would not 
work, that's true.


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Re: [Zope] non-undoable storage

2005-04-18 Thread Milos Prudek
It's designed to be a counter and does automatic conflict resolution. It
was mentionned a number of times in the past on the zope and zodb-dev
lists.
Thank you. I found detailed info in the mailing list archive, just like 
you said.

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[Zope] Both tal:on-error and error_log?

2005-04-18 Thread Kirk Strauser
Can I use a tal:on-error attribute in a page template to provide a 
user-friendly explanation of an exception while still recording the 
occurrence of that exception to error_log?
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Re: [Zope] Both tal:on-error and error_log?

2005-04-18 Thread Jens Vagelpohl
On Apr 18, 2005, at 20:20, Kirk Strauser wrote:
Can I use a tal:on-error attribute in a page template to provide a
user-friendly explanation of an exception while still recording the
occurrence of that exception to error_log?
I don't think that's possible. But you can test that very easily for 
yourself by putting code inside the on-error that provokes an error.

jens
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Re: [Zope] Both tal:on-error and error_log?

2005-04-18 Thread Kirk Strauser
On Monday 18 April 2005 13:35, Jens Vagelpohl wrote:

 I don't think that's possible. But you can test that very easily for
 yourself by putting code inside the on-error that provokes an error.

I guess I should've prefaced my question by saying that I know on-error 
normally ends propagation of the exception.  I guess I was wondering if 
there was some way to manually add the exception to an error_log object so 
that i can come back later to analyze that logfile, while still presenting 
a non-confusing error screen to my users.
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Re: [Zope] Both tal:on-error and error_log?

2005-04-18 Thread Jens Vagelpohl
On Apr 18, 2005, at 20:51, Kirk Strauser wrote:
On Monday 18 April 2005 13:35, Jens Vagelpohl wrote:
I don't think that's possible. But you can test that very easily for
yourself by putting code inside the on-error that provokes an error.
I guess I should've prefaced my question by saying that I know on-error
normally ends propagation of the exception.  I guess I was wondering if
there was some way to manually add the exception to an error_log 
object so
that i can come back later to analyze that logfile, while still 
presenting
a non-confusing error screen to my users.
There is a method named raising on the SiteErrorLog object but I 
don't see a way to call it from a PageTemplate itself because it seems 
to need the actual exception object as its argument.

jens
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Re: [Zope] Restart button in Control Panel

2005-04-18 Thread J Cameron Cooper
Jake wrote:
You are starting it in Debug mode, which means it will not allow for the
restart button.
/etc/zope.conf (edit debug mode)
Also, try running it with:
/bin/zopectl start 
I don't think that debug mode has anything to do with it. Rather, if 
you're using runzope it's not running in daemon mode, and so cannot 
restart. Run it as a service with 'zopectl start' and you'll have a 
Restart button.

		--jcc
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