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Re: [Zope] sequence of numbers
by Bill Randle 13 Mar '99

13 Mar '99

Paul, Thanks for the suggestion. I had thought of something like that, and my sequence is short, but the problem is I don't know how long it is ahead of time. The actual sequence length is stored in a property. I guess I could brute force it like this:     ...  Before I finished writing this followup, I did some browsing thru the Python book (definite newbie here, also) and found exactly what I was looking for: range(start?, end, step?) So, what I want to do is:  // some stuff  I notice that range() is not in the list of attributes for '_'. Is there any special reason for this? If it was there, I could do this:  Will it work to add "range" to the list of built-ins in line 185 of lib/python/DocumentTemplate/DT_Util.py (line number matches version 1.50)? I've redirected this followup to Zope-dev, as I think I'm talking more about development issues now, than a simple language quesiton. -Bill Randle Central Oregon Internet billr(a)coinet.com On Mar 13, 9:29am, Paul Everitt wrote: } Subject: RE: [Zope] sequence of numbers } } Bill wrote: } > What I want to do is given a limit number, iterate over a sequence of } > DTML commands. This would be an obvious use for #in (which I'm using } > elsewhere for other things) except I don't have a sequence - just the } > number of items in the sequence, as it were. } } Here's a brute-force way to do it, as long as the list of items was } short: } }  } }  } <br> }  } } --Paul

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RE: [Zope-dev] concerns about the single-threaded nature of zope: large file downloads.
by Paul Everitt 13 Mar '99

13 Mar '99

Anthony wrote: > Can someone who understands these things better provide me > some reassurance? Well I'm certainly not going to let your qualification prevent me from flapping my lips! > If I have a large object inside zope (say for the sake of > argument a one > meg audio message) and it's requested by someone who's on a > godawful link, > which only gets a couple of Kbytes a second of bandwidth. Is > Zope going to > be inaccessible while that file is downloaded? Nope. If you are using PCGI, the entire contents are poured into the PCGI process, which reads it all then trickles it back to the client. That is, PCGI buffers all I/O. I believe both ZopeHTTPServer (with threads turned on) and ZServer behave this way as well. --Paul

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RE: [Zope-dev] De-Authentication / Logout
by Paul Everitt 13 Mar '99

13 Mar '99

Roger wrote: > Jason wrote: > > Is there a setUser type method for AUTHENTICATED_USER? I have tried > > everything, and there isn't any docs. I am trying to have > a user logout > > without having to quit Netscape. Any thoughts? > > -- > > It's always been my impression that unless Zope can be fitted with a > cookie-based-authentication system (vs. the current > basic-auth), there's > *no* way to force a "logout" because of the way the *browsers* handle > basic-auth. The unsupported UserDB package has cookie-based authentication. We're using it here in a consulting gig we're shipping for an intranet budgeting system (written by Jeffrey Shell, it's the best, most polished deliverable we've ever made). There's a chance that this will become a more formal part of Zope on or about May 18. Just a hunch. :^) --Paul

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Re: [Zope-dev] De-Authentication / Logout
by ajs＠pigpond.com 13 Mar '99

13 Mar '99

>>>>> "Roger" == Roger Espinosa <roger(a)umich.edu> writes: Roger> At 4:40 PM -0500 3/12/99, Jason Spisak wrote: >> Zope-misters >> >> Is there a setUser type method for AUTHENTICATED_USER? I have >> tried everything, and there isn't any docs. I am trying to have >> a user logout without having to quit Netscape. Any thoughts? -- Roger> It's always been my impression that unless Zope can be fitted Roger> with a cookie-based-authentication system (vs. the current Roger> basic-auth), there's *no* way to force a "logout" because of Roger> the way the *browsers* handle basic-auth. Generally, the workaround/kludge is to change the authentication realm to something different, since most browsers seem to only remember authentication information for the most recent authentication realm (if I recall correctly). Also note that lynx gets it right since you can press _ to make it forget all known authentication information. - Andrew -- #!/usr/bin/env python print(lambda s:s+"("+`s`+")")\ ('#!/usr/bin/env python\012print(lambda s:s+"("+`s`+")")\\\012') print(lambda x:x%`x`)('print(lambda x:x%%`x`)(%s)')

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concerns about the single-threaded nature of zope: large file downloads.
by Anthony Baxter 13 Mar '99

13 Mar '99

Can someone who understands these things better provide me some reassurance? If I have a large object inside zope (say for the sake of argument a one meg audio message) and it's requested by someone who's on a godawful link, which only gets a couple of Kbytes a second of bandwidth. Is Zope going to be inaccessible while that file is downloaded? -- Anthony Baxter <anthony(a)interlink.com.au> It's never to late to have a happy childhood.

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Difference between C and Python versions of TemplateDict?
by Brian Hooper 13 Mar '99

13 Mar '99

Hi Zope-Devvers, Anyone have experience with the below kind of problem? I'm working on trying to make a Product which is reference-able using an in tag, like:    I've made a Product along these lines: class MyProduct( Acquisition.Implicit, Persistent, AccessControl.Role.RoleManager, OFS.SimpleItem.Item): def __init__(self): self.items = [MyItem(1), MyItem(2), MyItem(3)] def __call__(self, *args, **kw): return self.items def __len__(self): return len(self.items) def __getattr__(self, index): return self.items[index] class MyItem: def __init__(self, v): self.myvalue = v When I include the above  DTML in a document and view it, it gives a TypeError (2 args expected instead of 1) on the following line in DocumentTemplate.DT_In.renderwob: sequence=md[name] However, the exact same code works if I change DT_Util.py so that it uses pDocumentTemplate instead of cDocumentTemplate for the TemplateDict class definition. What's going on here? Is there some difference in the way this lookup is being done in pDocumentTemplate.TemplateDict and cDocumentTemplate.TemplateDict? I'm doing my best to understand what's going on on my own, but if anyone has an easy solution please spin it my way! Document Templatingly yours, -Brian Hooper

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Re: [Zope-dev] EJB
by Robin Dunn 13 Mar '99

13 Mar '99

Zope couldn't host an EJB, but some EJB containers (application servers) provide CORBA interfaces for accessing the EJB's either directly or indirectly. Using Fnorb you could implement the client-side proxies in Python and then should be able to talk to the EJB's from Zope. -- Robin Dunn robin(a)AllDunn.com http://AllDunn.com/robin/ http://AllDunn.com/wxPython/ Check it out! Try http://AllDunn.com/laughworks/ for a good laugh. -----Original Message----- From: umun <umun(a)cyberdude.com> To: zope list <zope-dev(a)zope.org> Date: Wednesday, March 10, 1999 5:15 PM Subject: [Zope-dev] EJB >Hi, > >As I am new to Zope, I hope I will not offend the people on the list if >this question has been asked before. Does the Zope development platform >support Enterprise Javabean Specs (1.0)? > >Don't get me wrong. As I am still evaluating Zope, I am very impressed >with the features that Zope offers but would like to consider >interoperating it with other EJB compliant frameworks like BEA WebLogic, >etc. > >rdgs > >umun > > >_______________________________________________ >Zope-Dev maillist - Zope-Dev(a)zope.org >http://www.zope.org/mailman/listinfo/zope-dev > >(For non-developer, user-level issues, use the companion list, >zope(a)zope.org, http://www.zope.org/mailman/listinfo/zope ) >

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De-Authentication / Logout
by Jason Spisak 13 Mar '99

13 Mar '99

Zope-misters Is there a setUser type method for AUTHENTICATED_USER? I have tried everything, and there isn't any docs. I am trying to have a user logout without having to quit Netscape. Any thoughts? -- Jason Spisak webmaster(a)mtear.com

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Net-Pa �nternet :)
by 2 Free Books ! (Totally) 13 Mar '99

13 Mar '99

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RE: [Zope] Some tough questions about zope... (long)
by Paul Everitt 12 Mar '99

12 Mar '99

Richard wrote: > Paul wrote: > > We put them in the database. The 3 Mb Zope binaries are > served out of > > the database, the PDF files are served out of the database. > This works > > so well I don't even think about it any more. > > Would you address the "to be uploaded" aspect. Unfortunately, from the > Zope POV, not all information formatters are written on Python. Zope currently speaks HTTP. Any programming language that fully implements the HTTP spec can talk to Zope. Skip is also using XML-RPC to get to Zope via Perl. Jim has spent some time thinking about adding XML-RPC support to the publishing system. Zope supports "Netscape Publishing", aka HTTP PUT. Thus you can sit in Netscape Composer and blast a whole directory into Zope in one fell swoop. Let's see, some other choices. When ZServer gets a little farther along you can use FTP. When we release the WebDAV support in Zope, you'll be able to use IE5, FrontPage 2000, and a number of other products to move information into and out of Zope. Until then you can use the command line WebDAV clients like sitecopy. > I certainly don't want to reinvent wheels. As a result, I need to do > automatic dynamic replacement of content. "Including" a file which has > been generated by the external program is certainly easier probably > more efficient than generating the file, importing a copy into the > database, and serving it from there. It might appear that way, but there are other points of view as well. Do you re-read the file on every request to re-parse it, the way PHP does? If you cache the contents, you'll still have to stat the file on every request, as well as any subdocument. Let's see, you'd also lose the benefits of the Zope cache. You'd obviously lose all concept of versioning and undo. Transactions will no longer work. Unless you invented some file-based meta information, you wouldn't be able to have properties or assign security or ... > Mentally, I look at a file system as an implementation of a database > which has structured keys and is efficient at supplying large > "results" > (the file) from the (path) key. Sure, it can do that. Can it do any of the other things the Zope database does? I understand that integrating filesystem information is appealing, but it certainly comes at both a feature and performance cost. If this is acceptible, then go for it. It should be pretty easy to write a "Disk Folder" that integrates a directory on the filesystem. --Paul

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