Mailing List Archive: Zope: Users

- Importing objects

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adustman at comstar

Dec 7, 1998, 4:30 PM

Post #1 of 6 (429 views)
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- Importing objects

I have an application where I would collect various automated e-mail
responses which arrive more or less randomly. How can I get these into
Zope? It looks like I could use the ZPublisher.Client module. Following
along in the code, it looks like it ought to do the job. Is there some
existing object type I can use for this, or do I have to make one?

Note: the Client module uses rand, which I think is obsoleted; it is no
longer in the Python Library Reference. To get around this, I did:

#from rand import rand
from whrandom import randint
def rand(): return randint(0,2**31)

Although, the only thing it is doing with rand.rand() is making a MIME
multipart boundary, which could also be done with
mimetools.choose_boundary().

--
Andy Dustman You should always say "spam" and "eggs"
ComStar Communications Corp. instead of "foo" and "bar"
(706) 549-7689 | PGP KeyID=0xC72F3F1D in Python examples. (Mark Lutz)

pavlos at gaaros

Dec 7, 1998, 6:43 PM

Post #2 of 6 (421 views)
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Re: - Importing objects [In reply to]

On Mon, 7 Dec 1998, Andy Dustman wrote:

>
> Note: the Client module uses rand, which I think is obsoleted; it is no
> longer in the Python Library Reference. To get around this, I did:
>
> #from rand import rand
> from whrandom import randint
> def rand(): return randint(0,2**31)

For entries that change regularly and often I do not use BoboPOS. Assuming
that the e-mails arrive on the server machine you can store them in any
format you want (shelve,xml plain text) and have Zope open your e-mail
database and process them.

Pavlos

adustman at comstar

Dec 7, 1998, 10:02 PM

Post #3 of 6 (421 views)
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Re: - Importing objects [In reply to]

On Mon, 7 Dec 1998, Pavlos Christoforou wrote:

> For entries that change regularly and often I do not use BoboPOS. Assuming
> that the e-mails arrive on the server machine you can store them in any
> format you want (shelve,xml plain text) and have Zope open your e-mail
> database and process them.

Okay. In one particular case, I have a sort of status report which is in a
fixed location in a flat text file, but it's not even clear how I can get
that. Basically, I have a module in the Extensions directory. It defines
one function. When I try to add an External method, it does find the
module, and it does find the function, but then it barfs:

Traceback (innermost last):
File /home/rlist/Zope-1.9b1-src/lib/python/ZPublisher/Publish.py, line
861, in publish_module
File /home/rlist/Zope-1.9b1-src/lib/python/ZPublisher/Publish.py, line
583, in publish
(Info: /Remailers/manage_addExternalMethod)
File
/home/rlist/Zope-1.9b1-src/lib/python/Products/ExternalMethod/ExternalMethod.py,
line 125, in manage_addExternalMethod
(Object: Navigation)
File
/home/rlist/Zope-1.9b1-src/lib/python/Products/ExternalMethod/ExternalMethod.py,
line 167, in __init__
(Object: Item)
File
/home/rlist/Zope-1.9b1-src/lib/python/Products/ExternalMethod/ExternalMethod.py,
line 186, in manage_edit
(Object: Item)
File
/home/rlist/Zope-1.9b1-src/lib/python/Products/ExternalMethod/ExternalMethod.py,
line 207, in getFunction
(Object: Item)
File /home/rlist/Zope-1.9b1-src/lib/python/App/Extensions.py, line 104,
in __cmp__
AttributeError: 'None' object has no attribute 'co_argcount'

So I'm obviously overlooking something.

--
Andy Dustman You should always say "spam" and "eggs"
ComStar Communications Corp. instead of "foo" and "bar"
(706) 549-7689 | PGP KeyID=0xC72F3F1D in Python examples. (Mark Lutz)

akuchlin at cnri

Dec 8, 1998, 7:52 AM

Post #4 of 6 (421 views)
Permalink

Re: - Importing objects [In reply to]

Andy Dustman writes:
>I have an application where I would collect various automated e-mail
>responses which arrive more or less randomly. How can I get these into
>Zope? It looks like I could use the ZPublisher.Client module. Following
>along in the code, it looks like it ought to do the job. Is there some
>existing object type I can use for this, or do I have to make one?

Ah! I've been fuzzily thinking of the objects that would be
useful for an upcoming site, and one of them would be an object for
receiving mail messages. Outside of Zope, you'd have to add a line to
/etc/aliases and pipe mail to some script which would stick messages
in a directory or GDBM file or something. Actually processing
messages is another matter; would it be better to have external
scripts that read mail and twiddle objects in the Bobobase, or do
everything in the long-running Zope process? If handled internally,
you could have a publish/subscribe model: objects could send out a
message with an ID in the subject line, and then be notified when a
response with that ID comes in again.

IMHO an important task will be to assemble a library of Zope
objects, letting people assemble systems out of lower-level building
blocks. For example, given a mail receiving object, you could write a
mailing list manager like Mailman as a Zope application.

--
A.M. Kuchling http://starship.skyport.net/crew/amk/
It may be objected by some that I have concentrated too much on the dry bones,
and too little on the flesh which clothes them, but I would ask such critics
to concede at least that the bones have an austere beauty of their own.
-- A.B. Pippard, _Classical Thermodynamics_

pavlos at gaaros

Dec 8, 1998, 11:59 AM

Post #5 of 6 (426 views)
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Re: - Importing objects [In reply to]

On Tue, 8 Dec 1998, Andy Dustman wrote:

> in __cmp__
> AttributeError: 'None' object has no attribute 'co_argcount'
>
> So I'm obviously overlooking something.
>

Andy

I am not using Zope so I won't be of much help in deciphering the Zope
tracebacks. I am using the ORB formerly known as Bobo and some simple
framework I have developed on my own. I did have a situation similar to
yours so I wrote a configuration class that maps dictionary like objects
to XML and back. The sychronization is done automatically so
administrators can edit the conf files using a text editor or through the
Web. BoboPOS only keeps a reference to the configuration object but does
not deal updates etc. I remember other posts on the subject and solutions
varied from using b+trees to gdbm/bsddb to gadfly/etc.

Pavlos

amos at aracnet

Dec 8, 1998, 1:05 PM

Post #6 of 6 (421 views)
Permalink

Re: - Importing objects [In reply to]

>Okay. In one particular case, I have a sort of status report which is in a
>fixed location in a flat text file, but it's not even clear how I can get
>that. Basically, I have a module in the Extensions directory. It defines
>one function. When I try to add an External method, it does find the
>module, and it does find the function, but then it barfs:
>
>Traceback (innermost last):
> File /home/rlist/Zope-1.9b1-src/lib/python/ZPublisher/Publish.py, line
>861, in publish_module
> File /home/rlist/Zope-1.9b1-src/lib/python/ZPublisher/Publish.py, line
>583, in publish
> (Info: /Remailers/manage_addExternalMethod)
> File
>/home/rlist/Zope-1.9b1-src/lib/python/Products/ExternalMethod/ExternalMetho
d.py,
>line 125, in manage_addExternalMethod
> (Object: Navigation)
> File
>/home/rlist/Zope-1.9b1-src/lib/python/Products/ExternalMethod/ExternalMetho
d.py,
>line 167, in __init__
> (Object: Item)
> File
>/home/rlist/Zope-1.9b1-src/lib/python/Products/ExternalMethod/ExternalMetho
d.py,
>line 186, in manage_edit
> (Object: Item)
> File
>/home/rlist/Zope-1.9b1-src/lib/python/Products/ExternalMethod/ExternalMetho
d.py,
>line 207, in getFunction
> (Object: Item)
> File /home/rlist/Zope-1.9b1-src/lib/python/App/Extensions.py, line 104,
>in __cmp__
>AttributeError: 'None' object has no attribute 'co_argcount'
>
>So I'm obviously overlooking something.

It seems that External Methods are broken in beta 1. There was at least on
patch posted to the Zope list. They should be fixed in beta 2. Sorry.

-Amos

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