[Zope-dev] MIME type syntax (was: Bug in zc.resourcelibrary?)
Fred Drake wrote:
On Dec 4, 2007 5:55 PM, Thomas Lotze [EMAIL PROTECTED] wrote:
It wasn't even about whitespace around the / but leading whitespace in
front of the major type.
Wow. It probably didn't occur to me that would be screwed up.
I've now looked up RfC 2045 which states that there is to be no whitespace
within the MIME type specification, i.e. in particular none around the
slash. This requires a change to zope.publisher.contenttype. OTOH it's
probably up to us how to treat whitespace surrounding the string
specifying MIME type:
- Either we decide that such a string should always follow the RfC exactly
and contain no whitespace at all (which makes the way zope.publisher.http
handles it the correct way),
- or we allow for it to be some possibly whitespace-padded string that
contains a valid MIME spec, which would allow for surrounding whitespace,
but not space around the slash.
I'd prefer the first option for clarity. Is there any reason to be
forgiving regarding whitespace in the first place?
As for capitalization, the RfC states clearly that major type, minor type
and parameter names are case-insensitive. This requires a change to
zope.publisher.http which currently says:
if not content_type.startswith('text/'):
raise ValueError(...)
I'll do all that once we have agreed on one way of treating the MIME type
specs.
--
Thomas
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[Zope-dev] getting RestrictedPython working on Python 2.5
Hi All, I'm looking to get RestrictedPython working in Python 2.5. Has any work been done on this so far? My first question is about the right way to get a checkout that I can develop in now. In years gone by, I would have created a branch of the whole of zope 3, checked it out and then started work. Since eggification, I'm not sure what to do... What I was planning on doing was creating a branch of RestrictedPython, checking that out and then manually checking out any dependencies from svn. Is there a better way to do this with easy_install or some such? cheers, Chris -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Re: getting RestrictedPython working on Python 2.5
Chris Withers wrote: Hi All, I'm looking to get RestrictedPython working in Python 2.5. Has any work been done on this so far? My first question is about the right way to get a checkout that I can develop in now. In years gone by, I would have created a branch of the whole of zope 3, checked it out and then started work. Since eggification, I'm not sure what to do... What I was planning on doing was creating a branch of RestrictedPython, checking that out and then manually checking out any dependencies from svn. Is there a better way to do this with easy_install or some such? $ svn co $z/RestrictedPython/trunk RestrictedPython (or a branch) $ cd RestrictedPython $ /your/development/python bootstrap.py $ bin/buildout $ bin/test ($z refers to svn+ssh://svn.zope.org/repos/main on my system) Note that this procedure is the canonical one for all packages maintained in svn.zope.org nowadays. ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Re: getting RestrictedPython working on Python 2.5
On 5 Dec 2007, at 15:46 , Chris Withers wrote: There's python setup.py develop, which will also install the checked out thing as a development egg, What does that mean? Which python files would I edit to make changes in this case? The ones you checked out. This isn't rocket science, you know :). Also, you don't get a test runner this easily (though we should probably make python setup.py test work at some point, it currently doesn't work). I might be interested in making that happen ;-) Cool. What still needs to be done? I'm imagining just plumbing the 'test' action through to running the zope.testing testrunner, or is there more to it than that? No idea. You'll presumably have to deal with the tests_require thing as well. The neat thign about the buildout way is that - it's an absolute no-brainer If you know what magic to incant ;-) All you have to remember is python boostrap.py and bin/buildout. Not very hard. The advantage is that every single sandbox can be set up like this. I deploy all my sites like this now, be it Grok, Zope 3 or even Plone: checkout the project from SVN and enter the two command - done! ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Re: getting RestrictedPython working on Python 2.5
Philipp von Weitershausen wrote: ($z refers to svn+ssh://svn.zope.org/repos/main on my system) Where does this put the code that I'd be changing? Uh, you checked it out (first line: svn co). Sorry, I'm used to things like python setup.py install putting all manner of things in all manner of weird places ;-) Dependencies will be downloaded from PyPI (or any other index you specify) as eggs. Cool. There's python setup.py develop, which will also install the checked out thing as a development egg, What does that mean? Which python files would I edit to make changes in this case? Also, you don't get a test runner this easily (though we should probably make python setup.py test work at some point, it currently doesn't work). I might be interested in making that happen ;-) What still needs to be done? I'm imagining just plumbing the 'test' action through to running the zope.testing testrunner, or is there more to it than that? The neat thign about the buildout way is that - it's an absolute no-brainer If you know what magic to incant ;-) - it's completely self-contained (nothing is installed outside that one directory, unless you explicitly allow that). This *is* a good thing :-) cheers, Chris -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Re: getting RestrictedPython working on Python 2.5
Philipp von Weitershausen wrote: On 5 Dec 2007, at 15:46 , Chris Withers wrote: The neat thign about the buildout way is that - it's an absolute no-brainer If you know what magic to incant ;-) All you have to remember is python boostrap.py and bin/buildout. Not very hard. The advantage is that every single sandbox can be set up like this. I deploy all my sites like this now, be it Grok, Zope 3 or even Plone: checkout the project from SVN and enter the two command - done! Maybe we should have a default GETTING-STARTED.txt that goes along with bootstrap.py. -- Benji York Senior Software Engineer Zope Corporation ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Runaway processes
Hi everyone, I have a problem and I am hoping that it has been solved already by someone or that I will get some input on at least.I apologize for the lengthy E-mail in advance, but I wanted to provide a detailed discussion as a starting point. Zope is designed to have very short-lived transactions. If transactions are long-living all sorts of problems arise, most notably: 1. We occupy one thread for a long time. 2. The chance of conflict errors increases. Problem 1 can be addressed by increasing the number of allowed threads or to simply add more Zope servers. But his has clearly its limits and is really just a work-around. Another way to solve the problem is to identify long-running operations and calling them asynchronous. Many of us have implemented solutions for this, one of which is lovely.remotetask. Problem number 2 can only be addressed by identifying the long-running tasks beforehand and move them into an async call, again via lovely.remotetask for example. But what happens, if a something unexpected happens and we have an unanticipated long-runnning process? The worst case being something runs forever. Then whenever this problem occurs, one thread will be locked forever, and we can have a total system lockdown in no-time. So how can this be solved? Effectively, from within Zope we cannot do anything, because (a) Zope makes no assumption about running in a thread, and (b) the application is stuck and won't have a hook to get unstuck. So we have to solve the problem from outside. Currently, Zope is commonly run from an application thread. At least both WSGI servers that we commonly use, twisted and zserver, are implemented this way. This means that by some criterion, probably some timeout, the thread should be killed. But hold on! In Python threads cannot be killed. :-( I have done some research and found issue 221115 [1], which discusses the shortcoming of not being able to kill a thread. The discussion ended in making a feature request in PEP 42 [2] which has not been implemented as far as I can tell. So I googled some more to find possible implementations. Here are two distinctively different solutions (others I have found are either obviously trivial and will not work, or are derivatives of these two): 1. A Python-only solution using sys.settrace [3]. Besides making everything very slow, sys.settrace() is only called when a new byte code instruction is executed. So in case a low-level call hangs up the process, then the trace intercept will never be called. 2. Use an exception to intercept execution on the C-level [4]. This looked very promising, until I read the following comment on the page: The exception will be raised only when executing python bytecode. If your thread calls a native/built-in blocking function, the exception will be raised only when execution returns to the python code. So my conclusion is that Python threads cannot be unconditionally killed. BTW, if a low-level call is blocking, then all Python threads are blocked. From the Python `thread` library documentation[5]: Not all built-in functions that may block waiting for I/O allow other threads to run. (The most popular ones (time.sleep(), file.read(), select.select()) work as expected.) In all fairness, though, those are very rare occurrences. Most libraries are non-blocking and the above solutions would be just fine. But in my case, I really need to find a way to kill a Zope execution environment when a C call hangs. So what other choices do we have? On Unix-like systems, we can use `os.fork()`. The advantage of this approach is that I can use OS system calls to kill the process. However, ZODB database storages cannot be shared between processes. Nikolay Kim has done some preliminary experiments and found that `db.open()` locks the system (for both, `FileStorage` and `ZeoClientStorage`). I have not verified these results or tried to figure out why it is hanging, but I can see the problem for `FileStorage`. Are there any known side-effects on what happens, if I fork after the connection has been made? Since I am using the original process merely as a control, I guess I should be fine. Of course, the interesting question is: what happens to the ZODB connection, not to mention to the DB, if it is in the middle of writing? I guess the safest solution would be to fork within the constraint of the transaction. Any comments will be very much appreciated. Once we decide on the forking approach, we have to solve the issue for Windows of course too. My googling did not turn out immediately successful, but I think if we use Windows' native threads they will provide us with the necessary API, since I can exit it at any time. .. [1]: http://bugs.python.org/issue221115 .. [2]: http://www.python.org/dev/peps/pep-0042/ .. [3]: http://www.velocityreviews.com/forums/t330554-kill-a-thread-in-python.html .. [4]:
[Zope-dev] Re: getting RestrictedPython working on Python 2.5
Chris Withers wrote: Philipp von Weitershausen wrote: $ svn co $z/RestrictedPython/trunk RestrictedPython (or a branch) $ cd RestrictedPython $ /your/development/python bootstrap.py $ bin/buildout $ bin/test ($z refers to svn+ssh://svn.zope.org/repos/main on my system) Where does this put the code that I'd be changing? Uh, you checked it out (first line: svn co). Are any dependencies brought out as svn checkouts or just got as stable releases? Dependencies will be downloaded from PyPI (or any other index you specify) as eggs. Note that this procedure is the canonical one for all packages maintained in svn.zope.org nowadays. OK, is there a non-buildout equivalent? There's python setup.py develop, which will also install the checked out thing as a development egg, but it will try and install the dependencies in the site-packages of the 'python' you used to call it with. This usually means isntalling things globally (unless you use virtualenv). Also, you don't get a test runner this easily (though we should probably make python setup.py test work at some point, it currently doesn't work). The neat thign about the buildout way is that - it's an absolute no-brainer - it's completely self-contained (nothing is installed outside that one directory, unless you explicitly allow that). ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Re: MIME type syntax (was: Bug in zc.resourcelibrary?)
Christian Theune wrote: That depends on the container format and therefore it's the responsibility of the container (e.g. a HTTP header) to remove the whitespace. Note that AFAICT RFC 2045 section 5.1 (that's what you're referring to AFAICT) defines the MIME type specification as done with the Content-Type header for MIME messages without defining exactly how the actual type relates to the container. That's why I asked about the intended semantics of our MIME type strings: should anything that's called a MIME or content type be strict according to the spec, it being the responsibility of whatever creates those strings to make them so, or should we have to be forgiving in all the places that consume MIME types? IMHO we should not pay attention to whitespace. I'm not sure whether you mean we should ignore whitespace in a MIME type string or not have to pay attention to the issue when consuming one. -- Thomas ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Re: Re: MIME type syntax (was: Bug in zc.resourcelibrary?)
Christian Theune wrote: IMHO we should assume whatever is given to us was unpacked by the container format and is intended to be a valid MIME type. Meaning we should not strip it. OK, then we agree. Good that I did zc.resourcelibrary 0.8, not 1.0 yesterday ;o) -- Thomas ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Zope Tests: 5 OK
Summary of messages to the zope-tests list. Period Tue Dec 4 13:00:00 2007 UTC to Wed Dec 5 13:00:00 2007 UTC. There were 5 messages: 5 from Zope Unit Tests. Tests passed OK --- Subject: OK : Zope-2.7 Python-2.3.6 : Linux From: Zope Unit Tests Date: Tue Dec 4 20:54:03 EST 2007 URL: http://mail.zope.org/pipermail/zope-tests/2007-December/008746.html Subject: OK : Zope-2.8 Python-2.3.6 : Linux From: Zope Unit Tests Date: Tue Dec 4 20:55:33 EST 2007 URL: http://mail.zope.org/pipermail/zope-tests/2007-December/008747.html Subject: OK : Zope-2.9 Python-2.4.4 : Linux From: Zope Unit Tests Date: Tue Dec 4 20:57:04 EST 2007 URL: http://mail.zope.org/pipermail/zope-tests/2007-December/008748.html Subject: OK : Zope-2.10 Python-2.4.4 : Linux From: Zope Unit Tests Date: Tue Dec 4 20:58:34 EST 2007 URL: http://mail.zope.org/pipermail/zope-tests/2007-December/008749.html Subject: OK : Zope-trunk Python-2.4.4 : Linux From: Zope Unit Tests Date: Tue Dec 4 21:00:05 EST 2007 URL: http://mail.zope.org/pipermail/zope-tests/2007-December/008750.html ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Re: getting RestrictedPython working on Python 2.5
- Benji York [EMAIL PROTECTED] wrote: Philipp von Weitershausen wrote: On 5 Dec 2007, at 15:46 , Chris Withers wrote: The neat thign about the buildout way is that - it's an absolute no-brainer If you know what magic to incant ;-) All you have to remember is python boostrap.py and bin/buildout. Not very hard. The advantage is that every single sandbox can be set up like this. I deploy all my sites like this now, be it Grok, Zope 3 or even Plone: checkout the project from SVN and enter the two command - done! Maybe we should have a default GETTING-STARTED.txt that goes along with bootstrap.py. May be we can add it to top-level README.txt of all packages. Regards, Baiju M ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Runaway processes
On Unix-like systems, we can use `os.fork()`. The advantage of this approach is that I can use OS system calls to kill the process. However, ZODB database storages cannot be shared between processes. Nikolay Kim has done some preliminary experiments and found that `db.open()` locks the system (for both, `FileStorage` and `ZeoClientStorage`). I have not verified these results or tried to figure out why it is hanging, but I can see the problem for `FileStorage`. i have to create new zeo storage for each child to make forking server work. i think for forking server we need long running childs ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Runaway processes
On Wednesday 05 December 2007, Stephan Richter wrote: On Unix-like systems, we can use `os.fork()`. The advantage of this approach is that I can use OS system calls to kill the process. However, ZODB database storages cannot be shared between processes. Nikolay Kim has done some preliminary experiments and found that `db.open()` locks the system (for both, `FileStorage` and `ZeoClientStorage`). I have not verified these results or tried to figure out why it is hanging, but I can see the problem for `FileStorage`. Okay, I spent the rest of the day testing the waters. ;-) The results are somewhat discouraging but the situation is not hopeless. FileStorage - All the file handling works just right. However, the object index is kept in memory, and the original and forked process do not share the same memory space. Thus, once the child process is done doing its modifications to the database, the parent does not know about the updated index. I have done a small hack that reloads the index and it works. However, loading the index can take a long time for large databases. To make this approach feasible, we would need to find a way to describe changes in the index and send the result to the parent via a file. (ZEO) ClientStorage - I could not get this to work at all, because at various steps in the transaction process, the code tries to allocate a lock, but cannot get it, which causes infinite loops. I have attached a small package that demonstrates the behavior. You can use the usual bootstrap/buildout dance. Before running the zeo-based test, you need to start the ZEO server using ./bin/zeo-server fg. Regards, Stephan -- Stephan Richter CBU Physics Chemistry (B.S.) / Tufts Physics (Ph.D. student) Web2k - Web Software Design, Development and Training forktest.tgz Description: application/tgz ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope] Re: pointers on predicting ZODB size based on size of files to be imported?
michael nt milne wrote: Hi Is there any documentation anywhere or advice on being able to estimate the size of a potential Zope ZODB instance based on the size of a current site? For example if you were to have a site of say 5 gb consisting of HTML pages, graphics, images, pdfs, word docs, excel files etc : are there any pointers anywhere on roughly how many gigs of ZODB this would take up? Obviously word, excel and other binary formats will likely translate to more weight... Also are there any ZODB growth prediction charts at all? There is no general answer to this question other than it depends ;-) In addition to the raw amount of data that you listed the most important additional piece of information you didn't provide is how busy people will be changing things. As any change or edit to an object causes this object to be written to the ZODB again your ZODB can grow (almost) arbitrarily fast until you pack it again. As packing removes the history (up to a point) it is again a policy decision on your side how much history you want or need to keep. With regard to the overhead added by having a file live in the ZODB versus being on the file system I think you shouldn't even worry. For a first estimate this difference shouldn't matter. There are exceptions, of course, like when you add Archetypes to the picture as AT tends to add a lot of overhead but that's not really a ZODB issue. Just my 2 cents. Raphael -- michael ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev ) ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Re: pointers on predicting ZODB size based on size of files to be imported?
Thanks for the reply. Yes we would be packing and backing up each day, so changes made to the db wouldn't be that much of an issue. I guess the best way to do this is to just test using various file types and record the changes to the ZODB. On Dec 5, 2007 12:06 PM, Raphael Ritz [EMAIL PROTECTED] wrote: michael nt milne wrote: Hi Is there any documentation anywhere or advice on being able to estimate the size of a potential Zope ZODB instance based on the size of a current site? For example if you were to have a site of say 5 gb consisting of HTML pages, graphics, images, pdfs, word docs, excel files etc : are there any pointers anywhere on roughly how many gigs of ZODB this would take up? Obviously word, excel and other binary formats will likely translate to more weight... Also are there any ZODB growth prediction charts at all? There is no general answer to this question other than it depends ;-) In addition to the raw amount of data that you listed the most important additional piece of information you didn't provide is how busy people will be changing things. As any change or edit to an object causes this object to be written to the ZODB again your ZODB can grow (almost) arbitrarily fast until you pack it again. As packing removes the history (up to a point) it is again a policy decision on your side how much history you want or need to keep. With regard to the overhead added by having a file live in the ZODB versus being on the file system I think you shouldn't even worry. For a first estimate this difference shouldn't matter. There are exceptions, of course, like when you add Archetypes to the picture as AT tends to add a lot of overhead but that's not really a ZODB issue. Just my 2 cents. Raphael -- michael ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev ) ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev ) -- michael ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] temporary exclude page from ram-cache
Hi all, I have RAM-cached page that looks for data from SQLdb. For error suppression (yea, I use MSSQL which make sometime unbelievable SQL error with the same errorless query) I use try-except wrapper, but in some cases page is cached without db results for a long time. I know how to invalidate already rendered page from a ram cache, but I does not know how to temporal disable RAM-cache during rendering of that page. Many thanks, J. Lukesh ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Progam To Write To PT
Hello, is there any particular reason why you cannot make your program write its output in the ZODB and then access this content from a regular page template to display it properly ? Eric BREHAULT On Dec 5, 2007 8:19 PM, Victor Subervi [EMAIL PROTECTED] wrote: Hi; How do I programmatically write to a page template? That is, I have a program on server and I want to write from that to PT in Zope. Documentation? TIA, Victor ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev ) ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Progam To Write To PT
--On 5. Dezember 2007 15:19:06 -0400 Victor Subervi [EMAIL PROTECTED] wrote: Hi; How do I programmatically write to a page template? That is, I have a program on server and I want to write from that to PT in Zope. Documentation? your_zope_pagetemplate_object.pt_edit(text, content_type) -aj pgpLYGZ6KWi0x.pgp Description: PGP signature ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] Progam To Write To PT
Hi; How do I programmatically write to a page template? That is, I have a program on server and I want to write from that to PT in Zope. Documentation? TIA, Victor ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Progam To Write To PT
I will need to create it first. Using your formula, would this be correct? my_folder/manage_addProduct/PageTemplates/manage_addPageTemplateForm(id = my_id) TIA, Victor On Dec 5, 2007 3:28 PM, Eric Bréhault [EMAIL PROTECTED] wrote: Hello, is there any particular reason why you cannot make your program write its output in the ZODB and then access this content from a regular page template to display it properly ? Eric BREHAULT On Dec 5, 2007 8:19 PM, Victor Subervi [EMAIL PROTECTED] wrote: Hi; How do I programmatically write to a page template? That is, I have a program on server and I want to write from that to PT in Zope. Documentation? TIA, Victor ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev ) ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] Accessing Zope REQUEST data from a Python module
I'm customizing a product. To do what I'm trying to do, I need to be able
to access REQUEST data from within a Python module (not a script; a .py file
containing class and method definitions).
From within a script, a line like
req = context.REQUEST
does the job just fine. But when I put that line into my product module, I
get a message like:
Name context not defined
and I don't see any way to import that into my module.
At (http://www.plope.com/Books/2_7Edition/AppendixB.stx#0-8), the Zope API
Reference describes the module HTTPRequest, which includes the class that
it calls HTTPRequest(BaseRequest), which apparently is the equivalent of
REQUEST as described above. I have put this line into my module:
from ZPublisher.HTTPRequest import HTTPRequest
but now I don't know how to reference the request's contents. I put in this
line:
req = HTTPRequest
and print req to a debug file, and it shows:
ZPublisher.HTTPRequest.HTTPRequest
which I don't understand. I have tried a half-dozen ways (suggested by the
Zope API Reference) to get an actual property of the current HTTPRequest,
but without success. Examples:
req['URL'] - TypeError: unsubscriptable object
req.get('URL') - TypeError: unbound method get() must be called
with HTTPRequest instance as first argument (got str instance
instead)
req.keys() - TypeError: unbound method keys() must be called with
HTTPRequest instance as first argument (got nothing instead)
The last two suggest that, while I have successfully imported the
HTTPRequest *class*, I haven't successfully gotten the current HTTPRequest
*instance*. I don't know how to do that.
So, I need an answer to any one of these questions:
1. How can the Zope global name context be defined or imported into a
non-script Python module?
2. How can one get the current instance of the class HTTPRequest into a
non-script Python module?
3. If I'm looking in the wrong direction, what is the right way to make the
current REQUEST's data available in a non-script Python module?
~ TIA
~ Ken
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[Zope] Re: Frustrated with Python and Frameworks. Zope
Some sort of rating system and comments about Zope products would be nice; like Joomla does with its extensions. For example: http://extensions.joomla.org/component/option,com_mtree/task,viewlink/lin k_id,1508/Itemid,35/ I can't say how much time I have wasted investigating dead-end or poorly or un-supported Zope products over the years. Being able to read other peoples unsoliciated opinions about a Joomla Extension has been incredibly helpful in making successful long-term selections. This is what we need, just install contentrating on plone.org I suppose... ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Accessing Zope REQUEST data from a Python module
--On 5. Dezember 2007 19:35:22 -0500 Ken Winter [EMAIL PROTECTED] wrote: I'm customizing a product. To do what I'm trying to do, I need to be able to access REQUEST data from within a Python module (not a script; a .py file containing class and method definitions). From within a script, a line like req = context.REQUEST does the job just fine. But when I put that line into my product module, I get a message like: Name context not defined and I don't see any way to import that into my module. Either you have to pass down the request object down to your own code or you pass the current 'context' object down to your code and access the request object from their using context.REQUEST. Don't expect that the current REQUEST is magically available. So the solution for questions 1-3 is: pass down the parameters that you need from the location where you have them and from where you call your own code (which is likely a script or a template). -aj pgpQrHUYfam6N.pgp Description: PGP signature ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Progam To Write To PT
--On 5. Dezember 2007 15:53:58 -0400 Victor Subervi [EMAIL PROTECTED] wrote: I will need to create it first. Using your formula, would this be correct? my_folder/manage_addProduct/PageTemplates/manage_addPageTemplateForm(id = my_id) Don't mix Python notation with TAL expressions. -aj pgpgA0LiXPEuk.pgp Description: PGP signature ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope-DB] compiling dco2.c with Oracle 10g using mingw on Windows XP - interesting errror
You might consider using cx_oracle as an alternative to DCO2. cx_oracle could be integrated with Zope as an DA using SQLAlchemyDA (although untested). DCO2 is pretty old and seems to be unmaintained. -aj --On 5. Dezember 2007 18:32:14 -0600 Maan M. Hamze [EMAIL PROTECTED] wrote: I compiled dco2.c on Solaris 9 with Oracle 9i and Oracle 10g with no problems. On Windows XP, compiling dco2.c with Oracle9i is fine. With Oracle 10g on Windows XP (using Mingw C compiler), I ran into following errors: # In file included from C:/oracle/ora10/oci/include/oci.h:394, from dco2.c:109: C:/oracle/ora10/oci/include/oratypes.h:97: error: syntax error before oraub8 C:/oracle/ora10/oci/include/oratypes.h:97: warning: data definition has no type or storage class C:/oracle/ora10/oci/include/oratypes.h:98: error: syntax error before orasb8 C:/oracle/ora10/oci/include/oratypes.h:98: warning: data definition has no type or storage class C:/oracle/ora10/oci/include/oratypes.h:99: error: syntax error before ub8 C:/oracle/ora10/oci/include/oratypes.h:99: warning: data definition has no type or storage class C:/oracle/ora10/oci/include/oratypes.h:100: error: syntax error before sb8 C:/oracle/ora10/oci/include/oratypes.h:100: warning: data definition has no type or storage class ### Culprit is this, in oratypes.h: # define ORAXB8_DEFINED # ifndef lint typedef unsigned _int64 oraub8; typedef signed _int64 orasb8; typedef oraub8 ub8; typedef orasb8 sb8; # else # define ub8 oraub8 # define sb8 orasb8 # define oraub8 unsigned _int64 # define orasb8 signed _int64 # endif /* !lint */ --- _int64 Changing this to __int64 solved the problem, and dco2.c compiled fine. _int64 caused the problem in oratypes.h of Oracle10g. Can this be fixed via some define in dco2.c so that I do not have to change oratypes.h (_int64 to __int64)? Thanks, Maan ___ Zope-DB mailing list Zope-DB@zope.org http://mail.zope.org/mailman/listinfo/zope-db -- ZOPYX Ltd. Co. KG - Charlottenstr. 37/1 - 72070 Tübingen - Germany Web: www.zopyx.com - Email: [EMAIL PROTECTED] - Phone +49 - 7071 - 793376 Registergericht: Amtsgericht Stuttgart, Handelsregister A 381535 Geschäftsführer/Gesellschafter: ZOPYX Limited, Birmingham, UK E-Publishing, Python, Zope Plone development, Consulting pgpuYUMOTT7hh.pgp Description: PGP signature ___ Zope-DB mailing list Zope-DB@zope.org http://mail.zope.org/mailman/listinfo/zope-db
