From dieter.menne@menne-biomed.de  Thu Mar  6 10:01:24 2003
From: dieter.menne@menne-biomed.de (Dieter Menne)
Date: Thu, 6 Mar 2003 11:01:24 +0100
Subject: [ZDP] Just to tell you
Message-ID: <JLEPLGAANFCEAEDCAGJNIEHHCEAA.dieter.menne@menne-biomed.de>

... your tutorial is great..


Dieter Menne



---------------------------------------
Dr. Dieter Menne
Biomed Software
72074 T=FCbingen
Tel (49) (7071) 52176
FAX (49) (7071) 55 10 46
dieter.menne@menne-biomed.de
www.menne-biomed.de






From webmaster@zope.org  Thu Mar  6 22:06:56 2003
From: webmaster@zope.org (webmaster@zope.org)
Date: Thu, 06 Mar 2003 17:06:56 -0500
Subject: [ZDP] BackTalk to Document Zope Developer's Guide (2.4 edition)/Testing and Debugging
Message-ID: <E18r3Vw-0000Pz-00@mail.python.org>

A comment to the paragraph below was recently added via http://www.zope.org/Documentation/Books/ZDG/current/TestingAndDebugging.stx#2-18

---------------

    There is a few other testing and debugging techniques and tools
    not commonly used to test Zope. In this section we'll mention
    several of them.

      % Anonymous User - Oct. 16, 2001 6:49 pm - The Medusa monitor client is also a good debugging tool. It permits querying the ZODB from an interactive commandline interface, and would be familiar to many Python users. The only downside is that because persisted objects are based on ExtensionClass, it is not possible to query an object for its functions and attributes in the style of "dir(thisobject)".    -- Chui Tey

      % Anonymous User - Nov. 1, 2001 8:39 am - Actually dir(object) works fine.  It just breaks the *first* time you try to use it on a persistent object, where it returns an empty list.  The second and subsequent times, it will show you the methods and attributes.  Of course it won't show you acquired methods and attributes, but that's what aq_parent and such are for. -- chrism

      % Anonymous User - Mar. 6, 2003 5:06 pm:
       Perhaps it's something I'm doing, but the downside of Medusa monitor debugging on my setup is that all errors
       fail silently, rather than raising a traceback. So if you try to look at attribute "a" of object "o", and it
       doesn't exist, you get no response, rather than a TB/exception. Is this just me?


From webmaster@zope.org  Sun Mar  9 19:00:04 2003
From: webmaster@zope.org (webmaster@zope.org)
Date: Sun, 09 Mar 2003 14:00:04 -0500
Subject: [ZDP] BackTalk to Document Zope Developer's Guide (2.4 edition)/Testing and Debugging
Message-ID: <E18s61k-0001pf-00@mail.python.org>

A comment to the paragraph below was recently added via http://www.zope.org/Documentation/Books/ZDG/current/TestingAndDebugging.stx#4-23

---------------

        So, for the sake our example, let's say that you have a 'News'
        object which is defined in a Zope Product called 'ZopeNews', and
        is located in the 'lib/python/Products/ZopeNews' directory.  The
        class that defines the 'News' instance is also called 'News',
        and is defined in the 'News.py' module in your product.

          % Anonymous User - Mar. 9, 2003 2:00 pm:
           What exactly is a News object and how was it defined? Is it a class that was registered with the registrar
           object? <a
           href="http://www.zope.org/Documentation/Books/ZDG/current/Products.stx">http://www.zope.org/Documentation/Boo
           ks/ZDG/current/Products.stx</a>
           Object is to ambiguous of a term.


From Dtimmons@mail.cyberlink.ws  Mon Mar 10 15:52:02 2003
From: Dtimmons@mail.cyberlink.ws (David Timmons)
Date: Mon, 10 Mar 2003 10:52:02 -0500
Subject: [ZDP] Shopping Cart example
Message-ID: <200303101052.AA1602552064@mail.cyberlink.ws>

Hello,
I was looking at the shopping cart example at 
http://www.aixtraware.de/TCPware/TCPware/TCPware/Examples.

It mentions that I could get the source by logging into the management 
interface; however, what is the user/password combo? do you have any 
other examples on using session data? This one does seem perfect.

Thanks for the help




From webmaster@zope.org  Tue Mar 11 10:31:50 2003
From: webmaster@zope.org (webmaster@zope.org)
Date: Tue, 11 Mar 2003 05:31:50 -0500
Subject: [ZDP] BackTalk to Document Zope Developer's Guide (2.4 edition)/Testing and Debugging
Message-ID: <E18sh30-00043t-00@mail.python.org>

A comment to the paragraph below was recently added via http://www.zope.org/Documentation/Books/ZDG/current/TestingAndDebugging.stx#3-2

---------------

      Profiling uses the standard Python profiler.  This is turned on
      by setting the 'PROFILE_PUBLISHER' environment variable before
      executing Zope.

        % Anonymous User - Mar. 11, 2003 5:31 am:
         It doesn't work for me :(
         In ZOPE_HOME/start i set 
         export PROFILE_PUBLISHER="/usr/local/zope/profile.out"
         exec /usr/local/bin/python $cwd/z2.py -D -u flo "$@"
         but i don't get any change in the profiling tab


From webmaster@zope.org  Wed Mar 12 07:21:20 2003
From: webmaster@zope.org (webmaster@zope.org)
Date: Wed, 12 Mar 2003 02:21:20 -0500
Subject: [ZDP] BackTalk to Document Zope Developer's Guide (2.4 edition)/Appendix B - Zope Directories
Message-ID: <E18t0YC-0001n5-00@mail.python.org>

A comment to the paragraph below was recently added via http://www.zope.org/Documentation/Books/ZDG/current/AppendixB.stx#1-0

---------------

  This is a list of some important directories in the Zope source
  code.

    'Extensions' -- Code for External Methods go in this
    directory.

    'ZServer' -- Python code for ZServer and Medusa.

    'ZServer/medusa' -- Sam Rushing's Medusa package upon which
    ZServer is built.

    'doc' -- Miscellaneous documentation. 

    'import' -- Place Zope export files here in order to import them
    into Zope.

    'inst' -- Installation scripts.

    'pcgi' --  C and Python code for PCGI.

    'utilities' -- Miscellaneous utilities.

    'var' -- Contains the ZODB data file (Data.fs) and various other
    files (logs, pids, etc.) This directory should be owned and
    writable by the userid that Zope is run as.

    'lib/Components' -- Python extension modules written in C
    including BTree, ExtensionClass, cPickle, zlib, etc.

    'lib/python' -- Most of the Zope Python code is in here.

    'lib/python/AccessControl' -- Security classes.

    'lib/python/App' -- Zope application classes. Stuff like product
    registration, and the control panel.

    'lib/python/BTrees' -- Btrees package.

    'lib/python/DateTime' -- DateTime package.

    'lib/python/DocumentTemplate' -- DTML templating package. DTML
    Document and DTML Method use this.

    'lib/python/HelpSys' -- Online help system.

    'lib/python/Interface' -- Scarecrow interfaces package.

    'lib/python/OFS' -- Object File System code. Includes basic Zope
    classes (Folder, DTML Document) and interfaces (ObjectManager,
    SimpleItem).

    'lib/python/Products' -- Zope products are installed here.

    'lib/python/Products/OFSP' -- The OFS product. Contains
    initialization code for basic Zope objects like Folder and DTML
    Document.

    'lib/python/RestrictedPython' -- Python security used by DTML and
    Python Scripts.

    'lib/python/SearchIndex' -- Indexes used by ZCatalog.

    'lib/python/Shared' -- Shared code for use by multiple Products.

    'lib/python/StructuredText' -- Structured Text package.

    'lib/python/TreeDisplay' -- Tree tag package.

    'lib/python/ZClasses' -- ZClasses package.

    'lib/python/ZLogger' -- Logging package.

    'lib/python/ZODB' -- ZODB package.

    'lib/python/ZPublisher' -- The Zope ORB.

    'lib/python/Zope' -- The Zope package published by ZPublisher.

    'lib/python/webDAV' -- WebDAV support classes and interfaces.

    % Anonymous User - Mar. 12, 2003 2:21 am:
     What's different between <zope>/lib/python/Products and <zope>/Products?


From money4u@OperaMail.com  Thu Mar 13 08:57:12 2003
From: money4u@OperaMail.com (GayleWilson)
Date: Thu, 13 Mar 2003 03:57:12 -0500
Subject: [ZDP] ~ saw your site-http://www.hitech-accounting.com/examples
Message-ID: <E18tOWW-0003Gg-00@memphis.dnsrouter.com>

Hello.
85% of all Internet surfers are directed by search engines. Search Engines are the super powerful traffic solution on the Internet.
Your web site:  http://www.hitech-accounting.com/examples

can be evaluated for FREE for its keyword placement in the top twenty major search engines.  By evaluate, we mean taking the search words that are important to your web site and checking the results of those words in the top twenty search engines to determine your web site's placement within those results.  We will create a report that displays the results, and then a professional evaluator will look at your site to see if there is any 'search engine hostile' content.  This valuable service is simply free for you as our gift.To take part in our free offer, simply click the link below:
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I think you will be very surprised by the detail and results of our analysis.

If by some misunderstanding we sent this email, click reply and type 'take away' in the subject line.
 - Gayle Wilson
Extreme Monitoring



From HugoMar@clientlogic.com  Thu Mar  6 15:18:32 2003
From: HugoMar@clientlogic.com (Hugo Martires)
Date: Thu, 6 Mar 2003 10:18:32 -0500
Subject: [ZDP] Zope Tuturial
Message-ID: <B1F07FDEC7FED311B3EC009027AA35370629930C@swords14>

I just finished to pass trough the zope tuturial to learn the very basics of
zope.
It was very helpful to have this tuturial.
Now I know what I can do with zope and how to start playng with it.

What would be nice also, is to have more advanced tuturials.

Many Thanks,
Hugo


From 4eer4e@yahoo.com  Thu Mar 13 19:52:12 2003
From: 4eer4e@yahoo.com (Yboreviel)
Date: Thu, 13 Mar 2003 19:52:12 GMT
Subject: [ZDP] shildebr,A Trading Systems for the New Millennium
Message-ID: <VOSSEXCHLxZm4Rp2q7J000042ba@vossexch.vossendom.huisvossen.com>

<html>

<head>
<meta http-equiv="Content-Language" content="en-us">
<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>Trading Systems for the New Millennium and the New Markets</title>
</head>

<body>

<h2 align="center"><span style="font-weight: 400">
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</p>
<h3 align="center">The Software: Market Prophet 2000<br>
&nbsp;</h3>
<table width="100%">
  <tr>
    <td style="font-family: arial,helvetica,sans-serif; font-size: x-small">
    <img height="130" alt="New Home Study Program" src="http://www.learntodaytrade.com/images/homestudylg.jpg" width="100" align="left" border="0">
    </td>
    <td style="font-family: arial,helvetica,sans-serif; font-size: x-small">
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<!--<p><img src="http://mail.yahoo.com/config/login?/options/holiday/cd.gif" align="left" border="0">A CD-ROM with the <b>Option Price Calculator</b> helps you determine the price of an option based on a stock's volatility estimate. </p>-->
</h3>
<p align="center">
<a href="http://www.learntodaytrade.com/microsite/feedback.htm" target="_blank">
<br>
</a>
<a style="color: #00594b" href="http://www.horizon-stop.com/trade_today/">
<img src="http://www.learntodaytrade.com/images/talk.gif" border="0" width="486" height="30"></a>
</p>
<div align="center">
&nbsp;</div>
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<p align="center">&nbsp;</p>
<p align="left"><font color="#0000FF">To stop receiving our promotion, please send email to  newsle_end@yahoo.com</font></p>

</body>

</html>


From webmaster@zope.org  Mon Mar 17 21:22:28 2003
From: webmaster@zope.org (webmaster@zope.org)
Date: Mon, 17 Mar 2003 16:22:28 -0500
Subject: [ZDP] BackTalk to Document Zope Developer's Guide (2.4 edition)/Testing and Debugging
Message-ID: <E18v23w-0001rm-00@mail.python.org>

A comment to the paragraph below was recently added via http://www.zope.org/Documentation/Books/ZDG/current/TestingAndDebugging.stx#3-2

---------------

      Profiling uses the standard Python profiler.  This is turned on
      by setting the 'PROFILE_PUBLISHER' environment variable before
      executing Zope.

        % Anonymous User - Mar. 11, 2003 5:31 am:
         It doesn't work for me :(
         In ZOPE_HOME/start i set 
         export PROFILE_PUBLISHER="/usr/local/zope/profile.out"
         exec /usr/local/bin/python $cwd/z2.py -D -u flo "$@"
         but i don't get any change in the profiling tab

        % Anonymous User - Mar. 17, 2003 4:22 pm:
         It's ok now. - I'm not sure what my mistake was.


From teyc@cognoware.com  Thu Mar 20 00:30:29 2003
From: teyc@cognoware.com (Chui Tey)
Date: Thu, 20 Mar 2003 10:30:29 +1000
Subject: [ZDP] masking email addresses
Message-ID: <9DB60AFDAB1A5E4093762030DBB38978360C4A@WEBSERVER.advdata.com.au>

This is a multi-part message in MIME format.

------=_NextPart_000_0000_01C2EECB.BBBE7C30
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 7bit

Since this is a dead project, I volunteer to modify ZDP to mask all the
email addresses to reduce spam harvesting. Can I have an account please?

Chui Tey

------=_NextPart_000_0000_01C2EECB.BBBE7C30
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3DWindows-1252">


<META content=3D"MSHTML 6.00.2800.1141" name=3DGENERATOR></HEAD>
<BODY>
<DIV><SPAN class=3D271352900-20032003><FONT face=3DArial size=3D2>Since =
this is a dead=20
project, I volunteer to modify ZDP to mask all the email addresses to =
reduce=20
spam harvesting. Can I have an account please?</FONT></SPAN></DIV>
<DIV><SPAN class=3D271352900-20032003><FONT face=3DArial=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=3D271352900-20032003><FONT face=3DArial size=3D2>Chui=20
Tey</FONT></SPAN></DIV></BODY></HTML>

------=_NextPart_000_0000_01C2EECB.BBBE7C30--



From webmaster@zope.org  Fri Mar 21 17:53:45 2003
From: webmaster@zope.org (webmaster@zope.org)
Date: Fri, 21 Mar 2003 12:53:45 -0500
Subject: [ZDP] BackTalk to Document Zope Developer's Guide (2.4 edition)/Zope Development Gotchas (User Contributed)
Message-ID: <E18wQi9-0005qG-00@mail.python.org>

A comment to the paragraph below was recently added via http://www.zope.org/Documentation/Books/ZDG/current/Gotchas#0-0

---------------

Here is the place to add comments about "gotchas" related to Zope development.  We will try to work
these in to the ZDG narrative from time to time.

  % mcdonc - Jan. 17, 2002 6:23 pm - Methods declared in Product classes must have docstrings to callable by visiting them "through the web" (by calling them up by URL via a browser).

  % Anonymous User - Feb. 27, 2002 10:52 pm - Volatile attributes are not shared between threads, so using them for  page counters or holding state between requests will not work (although it will sometimes appear to until your server is under load)

  % Anonymous User - May 22, 2002 7:18 am:
   DTMLMethod with a name ending '_alpha' was not rendered at all

  % Anonymous User - July 17, 2002 1:40 pm:
   From Zope Maillist:

   On Tue, 16 Jul 2002, Ross Boylan wrote:
   > The Zope Developer's Guide and the API docs (Zope 2.5) present
   > different stories about how to add things to object managers.  I don't
   > really follow what the API stuff is doing.  This is a request for
   > clarification.
   >
   > Devguide says do
   > def addFunction(dispatcher, id):
   >    "Create object and add to self"
   >    p = SomeProduct(id)
   >    dispatcher.Destination()._setObject(id, p)
   >
   > This makes sense, though, as commented at
   > http://www.zope.org//Members/michel/Projects/Interfaces/ObjectManager,
   > it relies on a private, undocumented method.  addFunction is in outer
   > scope of a module, and is hooked up wtih various calls in ___init__.py.

   Call this the "add function".  Defined by the product, it is passed
   the dispatcher for the ObjectManager to which the object is being added.
   As you say, it apparently uses a private function, however despite
   it's (historical artifact of a) name, it is the proper way to do
   this operation.  And it is documented, in the Dev Guide <wry grin>.

   > On the other hand, the ObjectManager API says to do
   > self.manage_addProduct['OFSP'].manage_addFolder(id, title).

   This is the action that non-Product code uses to add an object from
   the Product to an arbitrary object manager.  'self' being the object
   manager in question (eg: when called from an External Method, self
   will be the folder the External Method was called on).  This sequence
   *calls* the "add function" defined above.  In this case, it is
   calling the add function defined by the Folder object in the OFSP
   Product.

   > First, what scope should that be done in?  Second, this seems to
   > create one product (OFSP) and then add a folder to it, so that it
   > creates two, nested products.

   Actually, it doesn't.  This syntax has bothered me since I first
   encoutered it, and I'm sure I'm not alone.  But we are stuck with
   it (for now).  "manage_addProduct[<someproductname>]" is, essentially,
   a lookup in a registry keyed by product name.  So that part looks
   up the Product from the registry, and then you have access to the
   module level functions in that Product, such as the "add function"
   defined above.

   > The API for Folder mentions manage_addFolder as a constructor, but
   > again the scope is unclear to me.  Presumably it needs to know what to
   > add it to, but that is not passed in.

   You are calling the method on 'self' in the API example, or on some
   other reference to an ObjectManager in some other context.
   (Literally 'context' if you were doing this from a pythonscript.)
   'manage_addProduct' gets "acquired" (from where I'm not quite sure
   <wry grin>), and some magic that I haven't had a need to look in
   to arranges things so that your add function gets passed a dispatcher
   that has that ObjectManager as its Destination() as its first
   argument, followed by whatever arguments (id, title) in the API
   example) you pass it explicitly.  This is an example of Zope2
   "magic" that we are trying hard to eliminate from Zope3 <grin>.

   > Finally, the use of id in two places in the first code snippet (one
   > apparently associated with the container, the other with the object)
   > seems like an invitation to trouble.  Why is it done that way?

   Tell us about it.  This is an old Zope2 (or was it bobo?) design
   decision that has been revisited in Zope3.  In Zope3, only containers
   know about ids in the general case, not the objects referenced by
   them.

   > One reason I want to know this is that I'm considering having a
   > container that would automatically label (or set id) of its contents
   > (e.g., 'a' is first, 'b' is second....).
   >
   > Thanks for any light you can shed.

   Hopefully I haven't told you anything untrue up above, but if I have
   someone will doubtless correct me <grin>.

   --RDM

  % eckamm - Nov. 11, 2002 10:05 pm:
   This one has bit me on more than one occassion:
       manage_add_XYZ_form = DTMLFile('dtml/manage_add_XYZ_form')
   instead of:
       manage_add_XYZ_form = DTMLFile('dtml/manage_add_XYZ_form', globals())

   The error message is tough to interpret; it looks like an attempt
   is made to find manage_add_XYZ_form.dtml in {base}/lib/python/dtml/.
   This may send you on a wild goose chase if you're like me.

  % slinkp - Mar. 21, 2003 12:53 pm:
   i just posted this to the zope list...
   I find "Monkey patches" a useful way to expand or modify functionality provided by
   zope or 3rd-party products, but I just discovered something very important:
   it's apparently NOT safe to "refresh" a MonkeyPatch-style product.

   I have a monkeypatch that works fine until I refresh it, then I get mysterious
   errors like "Object of type 'None' is not callable" with no indication in the
   traceback of what object is None or even what's trying to call it!
   I've spent hours in a debugging session trying to find out what's None and
   came up with nothing.

   Then i discovered that if i restart zope, everything's fine. :-P


From anja_S@yahoo.de  Sun Mar 23 00:34:29 2003
From: anja_S@yahoo.de (Anja Sallborn)
Date: Sat, 22 Mar 2003 19:34:29 -0500
Subject: [ZDP] Schau dir das an!
Message-ID: <200303230034.h2N0YRp28355@ns2.zope.com>

Hi s=FCsser, <br>
Du willst geile Frauen und stehst auf harten Sex?? Kein Problem! Schau di=
r einfach meine geilen Seiten an und du wirst dein blaues Wunder erleben!
<br>
<a href=3D"http://girl021.tripod.com.br/index.txt?sid=3D151A0200294B0D1C0=
4465608185E5701595356500042454541425B5F451852455549">http://members.lycos=
.de/Anja_Sallborn/</a><br> =20
Vielleicht k=F6nnen wir uns ja auch mal treffen?!
<br>
ciao Anja



From webmaster@zope.org  Mon Mar 24 21:23:05 2003
From: webmaster@zope.org (webmaster@zope.org)
Date: Mon, 24 Mar 2003 16:23:05 -0500
Subject: [ZDP] BackTalk to Document Zope Developer's Guide (2.4 edition)/ZODB Persistent Components
Message-ID: <E18xZPN-0000wl-00@mail.python.org>

A comment to the paragraph below was recently added via http://www.zope.org/Documentation/Books/ZDG/current/Persistence.stx#2-31

---------------

    There are two solutions to this problem.  First, you can assign a
    special flag, '_p_changed'::

        def addDepartment(self, department):
            self.department.append(department)
            self._p_changed = 1

      % Anonymous User - Mar. 24, 2003 4:23 pm:
       It says there are "two solutions", and then, "First...". What is the second solution?


From Manuel Hidalgo O." <mhidalgo@catie.ac.cr  Thu Mar 27 00:58:18 2003
From: Manuel Hidalgo O." <mhidalgo@catie.ac.cr (Manuel Hidalgo O.)
Date: Wed, 26 Mar 2003 18:58:18 -0600
Subject: [ZDP] Spanish
Message-ID: <07e801c2f3fb$f4e27d60$090210ac@bcomputo>

Hello,

Do you have some document in spanish..

Thank You

____________________________
Manuel Hidalgo O.
TI SIDALC
Unidad de Informatica, Biblioteca Conmemorativa Orton
IICA
Tel 5582414       Fax 5560858
http://www.sidalc.net
http://www.catie.ac.cr/biblioteca
manuel.hidalgo@iica.ac.cr
mhidalgo@catie.ac.cr
ICQ 14195614
Messenger hotmail hidalgoo@hotmail.com
Messenger Yahoo  hidalgoo@yahoo.com


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From webmaster@zope.org  Sat Mar 29 05:43:06 2003
From: webmaster@zope.org (webmaster@zope.org)
Date: Sat, 29 Mar 2003 00:43:06 -0500
Subject: [ZDP] BackTalk to Document Zope Developer's Guide (2.4 edition)/Zope Development Gotchas (User Contributed)
Message-ID: <E18z97S-0001oL-00@mail.python.org>

A comment to the paragraph below was recently added via http://www.zope.org/Documentation/Books/ZDG/current/Gotchas#0-0

---------------

Here is the place to add comments about "gotchas" related to Zope development.  We will try to work
these in to the ZDG narrative from time to time.

  % mcdonc - Jan. 17, 2002 6:23 pm - Methods declared in Product classes must have docstrings to callable by visiting them "through the web" (by calling them up by URL via a browser).

  % Anonymous User - Feb. 27, 2002 10:52 pm - Volatile attributes are not shared between threads, so using them for  page counters or holding state between requests will not work (although it will sometimes appear to until your server is under load)

  % Anonymous User - May 22, 2002 7:18 am:
   DTMLMethod with a name ending '_alpha' was not rendered at all

  % Anonymous User - July 17, 2002 1:40 pm:
   From Zope Maillist:

   On Tue, 16 Jul 2002, Ross Boylan wrote:
   > The Zope Developer's Guide and the API docs (Zope 2.5) present
   > different stories about how to add things to object managers.  I don't
   > really follow what the API stuff is doing.  This is a request for
   > clarification.
   >
   > Devguide says do
   > def addFunction(dispatcher, id):
   >    "Create object and add to self"
   >    p = SomeProduct(id)
   >    dispatcher.Destination()._setObject(id, p)
   >
   > This makes sense, though, as commented at
   > http://www.zope.org//Members/michel/Projects/Interfaces/ObjectManager,
   > it relies on a private, undocumented method.  addFunction is in outer
   > scope of a module, and is hooked up wtih various calls in ___init__.py.

   Call this the "add function".  Defined by the product, it is passed
   the dispatcher for the ObjectManager to which the object is being added.
   As you say, it apparently uses a private function, however despite
   it's (historical artifact of a) name, it is the proper way to do
   this operation.  And it is documented, in the Dev Guide <wry grin>.

   > On the other hand, the ObjectManager API says to do
   > self.manage_addProduct['OFSP'].manage_addFolder(id, title).

   This is the action that non-Product code uses to add an object from
   the Product to an arbitrary object manager.  'self' being the object
   manager in question (eg: when called from an External Method, self
   will be the folder the External Method was called on).  This sequence
   *calls* the "add function" defined above.  In this case, it is
   calling the add function defined by the Folder object in the OFSP
   Product.

   > First, what scope should that be done in?  Second, this seems to
   > create one product (OFSP) and then add a folder to it, so that it
   > creates two, nested products.

   Actually, it doesn't.  This syntax has bothered me since I first
   encoutered it, and I'm sure I'm not alone.  But we are stuck with
   it (for now).  "manage_addProduct[<someproductname>]" is, essentially,
   a lookup in a registry keyed by product name.  So that part looks
   up the Product from the registry, and then you have access to the
   module level functions in that Product, such as the "add function"
   defined above.

   > The API for Folder mentions manage_addFolder as a constructor, but
   > again the scope is unclear to me.  Presumably it needs to know what to
   > add it to, but that is not passed in.

   You are calling the method on 'self' in the API example, or on some
   other reference to an ObjectManager in some other context.
   (Literally 'context' if you were doing this from a pythonscript.)
   'manage_addProduct' gets "acquired" (from where I'm not quite sure
   <wry grin>), and some magic that I haven't had a need to look in
   to arranges things so that your add function gets passed a dispatcher
   that has that ObjectManager as its Destination() as its first
   argument, followed by whatever arguments (id, title) in the API
   example) you pass it explicitly.  This is an example of Zope2
   "magic" that we are trying hard to eliminate from Zope3 <grin>.

   > Finally, the use of id in two places in the first code snippet (one
   > apparently associated with the container, the other with the object)
   > seems like an invitation to trouble.  Why is it done that way?

   Tell us about it.  This is an old Zope2 (or was it bobo?) design
   decision that has been revisited in Zope3.  In Zope3, only containers
   know about ids in the general case, not the objects referenced by
   them.

   > One reason I want to know this is that I'm considering having a
   > container that would automatically label (or set id) of its contents
   > (e.g., 'a' is first, 'b' is second....).
   >
   > Thanks for any light you can shed.

   Hopefully I haven't told you anything untrue up above, but if I have
   someone will doubtless correct me <grin>.

   --RDM

  % eckamm - Nov. 11, 2002 10:05 pm:
   This one has bit me on more than one occassion:
       manage_add_XYZ_form = DTMLFile('dtml/manage_add_XYZ_form')
   instead of:
       manage_add_XYZ_form = DTMLFile('dtml/manage_add_XYZ_form', globals())

   The error message is tough to interpret; it looks like an attempt
   is made to find manage_add_XYZ_form.dtml in {base}/lib/python/dtml/.
   This may send you on a wild goose chase if you're like me.

  % slinkp - Mar. 21, 2003 12:53 pm:
   i just posted this to the zope list...
   I find "Monkey patches" a useful way to expand or modify functionality provided by
   zope or 3rd-party products, but I just discovered something very important:
   it's apparently NOT safe to "refresh" a MonkeyPatch-style product.

   I have a monkeypatch that works fine until I refresh it, then I get mysterious
   errors like "Object of type 'None' is not callable" with no indication in the
   traceback of what object is None or even what's trying to call it!
   I've spent hours in a debugging session trying to find out what's None and
   came up with nothing.

   Then i discovered that if i restart zope, everything's fine. :-P

  % Anonymous User - Mar. 29, 2003 12:43 am:
   slinkp: Yes, that's right, you should never try to refresh monkey patch products. However, I haven't found
   the right way to spread this warning so that the people who need to know it will hear it. How do you suggest
   this be documented?
   Shane Hathaway