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Sessions & DTML Execution
by Justin Dunsworth 08 Apr '15

08 Apr '15

Hello, I am running into an issue that I can't quite figure out. I'm trying to leverage storing data within sessions then setting a variable in the header of my page to the session variable (for ease of calling) where I can then use it throughout the rest of my document. Here's the way it goes: <dtml-if "REQUEST.SESSION.get('testVarDict')"> <dtml-call "REQUEST.set('testVarDict',REQUEST.SESSION.get('vx9member'))"> <dtml-else> <dtml-call "RESPONSE.redirect(BASE1+'/login')"> </dtml-if> <dtml-var testVarDict> Here I am wanting to redirect to login should testVarDict not be set. Instead it seems like Zope is still wanting to execute the rest of the page prior to redirecting so this will throw a NameError for testVarDict should the session data not be set. I then found out that I can change the dtml-call to a dtml-return for the redirect and it will stop executing the dtml and redirect. This is all fine but if I have another page I'm going to call that uses the header like so: <dtml-var headerDoc> <dtml-var testVarDict> <dtml-var footerDoc> This then will throw the same NameError regardless of the dtml-return redirect in the header. I can get around this by placing the same checks in the top of every.single.page that I want to utilize testVarDict variable but that's too cumbersome. I then tried to make a script that would check the same thing and then redirect but it doesn't seem to work at all - for fun here's the python script: if context.REQUEST.SESSION.get('testVarDict'): context.REQUEST.set('vx9member',context.REQUEST.SESSION.get('testVarDict')) else: return context.REQUEST.RESPONSE.redirect('/login') I've also tried just the context.REQUEST.RESPONSE.redirect without the return but it doesn't seem to work and I suspect it's because python return is not the same as dtml-return. If anyone could assist or show me a different way then I would greatly appreciate it. Thanks, J

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Start up failing with ZopeCtlOptions instance has no attribute 'transcript'
by Sebastian Tänzer 02 Apr '15

02 Apr '15

Hello all, latest Zope2 releases (2.13.23.dev0) seem top have a bug in Zope2/Startup/zopectl.py and zdaemon/zdctl.py leading to this error on zopectl start (zopectl fg works fine): Traceback (most recent call last): File "/opt/python/zope2/bin/zopectl", line 9, in <module> load_entry_point('Zope2==2.13.23.dev0', 'console_scripts', 'zopectl')() File "/opt/python/zope2/lib/python2.7/site-packages/Zope2/Startup/zopectl.py", line 488, in run exitstatus = main() File "/opt/python/zope2/lib/python2.7/site-packages/Zope2/Startup/zopectl.py", line 447, in main c.onecmd(" ".join(options.args)) File "/opt/python/2.7.9/lib/python2.7/cmd.py", line 221, in onecmd return func(arg) File "/opt/python/zope2/lib/python2.7/site-packages/Zope2/Startup/zopectl.py", line 241, in do_start ZDCmd.do_start(self, arg) File "/opt/python/zope2/lib/python2.7/site-packages/zdaemon/zdctl.py", line 305, in do_start args += self._get_override("-t", "transcript") File "/opt/python/zope2/lib/python2.7/site-packages/Zope2/Startup/zopectl.py", line 223, in _get_override value = getattr(self.options, name) AttributeError: ZopeCtlOptions instance has no attribute 'transcript' I repeated my setup multiple times and was able to reproduce this every time with every setup, so I don't think this is a configuration error on my side (yet if it is please tell me what might be wrong). Zope2 was installed using a simple pip install Zope2. Imho this bug comes up as in Startup/zopectl.py" the ZopeCtlOptions class is beeing emulated but so. missed the transcript attribute (as before this happend with the startup-time attribute, too). I created a patch that's attached to this mail and should be run inside the virtualenv python dir (i.e. where bin, include, lib etc. reside): patch -p0 < patch-zope2-startup.diff Maybe someone could confirm that this bug exists and this fixes it? Best Sebastian - tänzermedien GmbH - Agentur für Online-Medien Kekuléstr. 39 | 53115 Bonn, Germany E-Mail: st(a)taenzer.me | Web: http://www.taenzer.me Tel.: 0228-304134-0 | Fax.: 0228-304134-99

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Zopache Demo
by Christopher Lozinski 01 Apr '15

01 Apr '15

Zopache is a through-the-web Javascript Development environment built on top of Python, ZODB, ZTK, and Grok. Zopache was used to build zopache.com You can see a demo of the gorgeous HTML editor here: http://www.zopache.com/demo We are so used to thinking of Zope as open source software. That business model is not working. Furthermore most of the people in the world are not able to configure their own servers, let alone understand the Zope Component Architecture. A different approach is needed. I wish I know what is was. CHris

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Zope2 - pro/contra
by Sebastian Tänzer 18 Mar '15

18 Mar '15

Hello ZOPE community, we're still developing websites using Zope2 + ZMS3 (www.zms-publishing.com) for years now and never ran into any real problems (compared to, let's say, Wordpress, typo3, Drupal etc. which had serious security problems over the years) and our clients are quite happy with ZMS. A few days ago on a barcamp the discussion lead to Zope and the usual comments, i.e. "Zope is dead", "I would not use that", "Too complicated", "Too old", "Outdated",.... and so on. My personal opinion is, that Zope2 is still rock-solid and gets the job done. I've never heard of any serious issues compared to the big competitors from the PHP or Java world. I looked into Pyramid and Django for different projects and always came back to Zope2 itself. I did not ask that question for quite some time now as there was no reason. Sure, sometimes we get comments like "never heard of it" etc., but nothing serious. Still, are there any specific reasons (beside personal favors) not to use Zope2 anymore? Any reason not to use Zope2 + ZODB for new projects? Are other frameworks like flask, Django, pyramid etc. that much better compared to Zope? Best Sebastian

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Re: [Zope] Zope Digest, Vol 125, Issue 2
by Nico Grubert 06 Mar '15

06 Mar '15

I use Zope since around 2001 and I still have some Zope 2 web applications running and they are just rock-solid and easy to update. I have never been convinced by Zope 3 and I have never seen any advantages for using the Zope 3 techniques. The Zope 2 core developers (I think Andreas has worked for Zope Corporation) created a mature product - and I still love it for its flexibility and the speed of development once you understood the core concepts. However, web development has been changed in the past 10 years. But for future projects I look for new python based products.

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Re: [Zope] Zope2 - pro/contra
by Nico Grubert 06 Mar '15

06 Mar '15

I use Zope since around 2001 and I still have some Zope 2 web applications running and they are just rock-solid and easy to update. I have never been convinced by Zope 3 and I have never seen any advantages for using the Zope 3 techniques. The Zope 2 core developers (I think Andreas has worked for Zope Corporation) created a mature product - and I still love it for its flexibility and the speed of development once you understood the core concepts. However, web development has been changed in the past 10 years. But for future projects I look for new python based products. PS: Sorry, my former message can be deleted,I forgot to change the subject.

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Job offer in Germany for a Python, JavaScript developer. Duration of the contract is 10 months.
by Renat Ishmukhametov 10 Feb '15

10 Feb '15

Dear all, We are looking for a Python, JavaScript developer: - Location: Bonn, Germany; - Contract duration: 10 months; All details are available here: https://unfccc.int/secretariat/employment/recruitment. Vacancy announcement code: 15/TA04/ITS. Details of the vacancy can be found here: https://unfccc.int/secretariat/employment/UserManagement/FileStorage/FX8W7H…. Thank you, ------------------------------------------------------------------------- Renat Ishmukhametov Information Systems Project Officer Information Technology Services [cid:image001.png@01D0451C.397C1B60] Climate Change Secretariat Martin-Luther-King Strasse 8 53175 Bonn, Germany Tel: +49 (0) 228 815 1357 rishmukhametov(a)unfccc.int unfccc.int

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ANN: eGenix mxODBC Plone/Zope Database Adapter 2.2.0
by eGenix Team: M.-A. Lemburg 11 Dec '14

11 Dec '14

________________________________________________________________________ ANNOUNCING mxODBC Plone/Zope Database Adapter Version 2.2.0 for the Plone CMS and Zope server platform Available for Plone 4.0-4.3 and Plone 5.0, Zope 2.12 and 2.13, on Windows, Linux, Mac OS X, FreeBSD and other platforms This announcement is also available on our web-site for online reading: http://www.egenix.com/company/news/eGenix-mxODBC-Zope-DA-2.2.0-GA.html ________________________________________________________________________ INTRODUCTION The eGenix mxODBC Zope DA allows you to easily connect your Zope or Plone CMS installation to just about any database backend on the market today, giving you the reliability of the commercially supported eGenix product mxODBC and the flexibility of the ODBC standard as middle-tier architecture. The mxODBC Zope Database Adapter is highly portable, just like Zope itself and provides a high performance interface to all your ODBC data sources, using a single well-supported interface on Windows, Linux, Mac OS X, FreeBSD and other platforms. This makes it ideal for deployment in ZEO Clusters and Zope hosting environments where stability and high performance are a top priority, establishing an excellent basis and scalable solution for your Plone CMS. Product page: http://www.egenix.com/products/zope/mxODBCZopeDA/ ________________________________________________________________________ NEWS We are pleased to announce our new version 2.2.0 of the mxODBC Zope/Plone Database Adapter product. In this release, we have upgraded the adapter to mxODBC 3.3.1 and added compatibility with the latest Plone releases and ODBC drivers/managers. Feature Enhancements -------------------- * Compatible with Plone 4.0 - 4.3. * Compatible with the upcoming Plone 5.0. Enhanced Support for Stored Procedures * Added documentation on how to call stored procedures from Plone / Zope. * Added support for input, output and input/output parameters to the .callproc() method for calling stored procedures. * Added documentation on how to use External Methods to access and use the mxODBC Zope DA connection objects. Fast Cursor Types * Switched to forward-only cursor types for all database backends, since this provides a much better performance for MS SQL Server and IBM DB2 drivers. Updated mxODBC API * Access all new features from the updated mxODBC 3.3 API via the DatabaseConnect.connection attribute or by importing the mxODBC API directly. Please see the mxODBC 3.3.0 and 3.3.1 release announcements for full details. Easier Installation * ThreadLock egg distribution provided by eGenix to avoid having a compiler installed for the installation buildout run. Please see our ThreadLock distribution release announcement for details: http://www.egenix.com/company/news/eGenix-ThreadLock-Distribution-2.13.0.1.… For the full list of features, please see the mxODBC Zope DA feature list: http://www.egenix.com/products/zope/mxODBCZopeDA/#Features Driver Compatibility Enhancements --------------------------------- * ODBC driver compatibility updated. By upgrading to the latest mxODBC 3.3 release, we are bringing all compatibility enhancements added to mxODBC 3.3 to the mxODBC Zope DA. This includes updated support for Oracle, MS SQL Server, Sybase ASE, IBM DB2, PostgreSQL and MySQL. See the mxODBC 3.3.0 and 3.3.1 release announcements for full details: http://www.egenix.com/company/news/eGenix-mxODBC-3.3.0-GA.html http://www.egenix.com/company/news/eGenix-mxODBC-3.3.1-GA.html * ODBC manager compatibility updated. Built against unixODBC 2.3.2, iODBC 3.52.8, DataDirect 7.1.2 on Unix. Built against the MS Windows Manager ODBC on Windows. Built against iODBC 3.52.8 on Mac OS X. The complete list of changes is available on the mxODBC Zope DA changelog page. http://www.egenix.com/products/zope/mxODBCZopeDA/changelog.html ________________________________________________________________________ UPGRADING Users are encouraged to upgrade to this latest mxODBC Plone/Zope Database Adapter release to benefit from the new features and updated ODBC driver support. We have taken special care not to introduce backwards incompatible changes, making the upgrade experience as smooth as possible. For major and minor upgrade purchases, we will give out 20% discount coupons going from mxODBC Zope DA 1.x to 2.2 and 50% coupons for upgrades from mxODBC 2.x to 2.2. After upgrade, use of the original license from which you upgraded is no longer permitted. Patch level upgrades (e.g. 2.2.0 to 2.2.1) are always free of charge. Please contact the eGenix.com Sales Team with your existing license serials for details for an upgrade discount coupon. If you want to try the new release before purchase, you can request 30-day evaluation licenses by visiting our web-site or writing to sales(a)egenix.com, stating your name (or the name of the company) and the number of eval licenses that you need. http://www.egenix.com/products/python/mxODBCZopeDA/#Evaluation ________________________________________________________________________ DOWNLOADS Please visit the eGenix mxODBC Zope DA product page for downloads, instructions on installation and documentation of the packages: http://www.egenix.com/company/products/zope/mxODBCZopeDA/ If you want to try the package, please jump straight to the download instructions: http://www.egenix.com/products/zope/mxODBCZopeDA/#Download Fully functional evaluation licenses for the mxODBC Zope DA are available free of charge: http://www.egenix.com/products/zope/mxODBCZopeDA/#Evaluation ________________________________________________________________________ SUPPORT Commercial support for this product is available directly from eGenix.com. Please see the support section of our website for details: http://www.egenix.com/services/support/ ________________________________________________________________________ MORE INFORMATION For more information on eGenix mxODBC Zope DA, licensing and download instructions, please write to sales(a)egenix.com. About eGenix (http://www.egenix.com/) eGenix is a software project, consulting and product company focusing on expert project services and professional quality products for companies, Python users and developers. Enjoy, -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Dec 11 2014) >>> Python Projects, Consulting and Support ... http://www.egenix.com/ >>> mxODBC.Plone/Zope.Database.Adapter ... http://zope.egenix.com/ >>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ________________________________________________________________________ 2014-12-02: Released mxODBC Connect 2.1.2 ... http://egenix.com/go66 ::::: Try our mxODBC.Connect Python Database Interface for free ! :::::: eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/

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Zope zserver-threads minimum is 5?
by Pablo Caro Revuelta 10 Nov '14

10 Nov '14

Hi all, My zope clients (Zope2-2.12.11) allways start with 5 theads although zserver-threads is 2 in my zope.conf file. I am using "ps -eLf" for theads counter. If for zserver-threads I use the values 1, 2 or 3 I get 5 theads. A higher value give me 2 threads more. I mean, for 4 I get 6, for 15, 17 threads, etc. It's correct? There are allways 5 threads minumun and 2 extra? It's a plone site. I am using zeo with separated catalog. I have 16 instances in a 8 cores machines and I think the GIL is making a poor performance. Thanks

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ANN: eGenix ThreadLock Distribution 2.13.0.1
by eGenix Team: M.-A. Lemburg 06 Nov '14

06 Nov '14

________________________________________________________________________ ANNOUNCING eGenix.com ThreadLock Distribution Version 2.13.0.1 eGenix is making a ThreadLock binary distribution available to simplify the setup for users of our mxODBC Plone/Zope database adapter. This announcement is also available on our web-site for online reading: http://www.egenix.com/company/news/eGenix-ThreadLock-Distribution-2.13.0.1.… ________________________________________________________________________ INTRODUCTION Several people have approached us about a problem they are facing with installing our mxODBC database adapter for Plone and Zope: http://www.egenix.com/products/zope/mxODBCZopeDA/ The adapter product has dependencies on * ThreadLock * Products.ZSQLMethods The Products.ZSQLMethods package is a pure Python package, so it installs fine on all platforms. ThreadLock comes with a Python C extension, so buildout needs to either find egg files for the platforms or have a compiler installed to build the C extensions. On Unix platforms, installing a compiler is fairly straight forward, but on Windows setting up compilers for Python is difficult and the ThreadLock entry on PyPI only comes with egg files for Python 2.6 on Windows. ________________________________________________________________________ SOLUTION To overcome this problem, we have taken the ThreadLock package and created an internal setup to have it compiled by our build farm. You can now use these buildout configuration settings to pull the egg files from our indexes. For UCS2 Python builds (16-bit Unicode on Unix, Python for Windows): -------------------------------------------------------------------- [buildout] ... find-links = ... https://downloads.egenix.com/python/index/ucs2/ eggs = ... ThreadLock [versions] ... ThreadLock = 2.13.0.1 For UCS4 Python builds (32-bit Unicode on Unix): -------------------------------------------------------------------- [buildout] ... find-links = ... https://downloads.egenix.com/python/index/ucs4/ eggs = ... ThreadLock [versions] ... ThreadLock = 2.13.0.1 Available binaries ------------------ We provide egg files for Linux x86 and x64, Windows x86 and x64 as well as the source package as fallback solution. The binaries were compiled with Python 2.4, 2.5, 2.6 and 2.7. Version number -------------- Note that we have added a build number to the package version. This allows us to issue updates to the package builds should these be necessary and also makes sure that your buildout will use the packages from our indexes instead of PyPI or other indexes. ________________________________________________________________________ ABOUT THE EGENIX MXODBC PLONE/ZOPE DATABASE ADAPTER The eGenix mxODBC Zope DA allows you to easily connect your Zope or Plone CMS installation to just about any database backend on the market today, giving you the reliability of the commercially supported eGenix product mxODBC and the flexibility of the ODBC standard as middle-tier architecture. The mxODBC Zope Database Adapter is highly portable, just like Zope itself and provides a high performance interface to all your ODBC data sources, using a single well-supported interface on Windows, Linux, Mac OS X, FreeBSD and other platforms. This makes it ideal for deployment in ZEO Clusters and Zope hosting environments where stability and high performance are a top priority, establishing an excellent basis and scalable solution for your Plone CMS. Product page: http://www.egenix.com/products/zope/mxODBCZopeDA/ ________________________________________________________________________ MORE INFORMATION For more information on the eGenix ThreadLock distribution, the eGenix mxODBC Zope DA, licensing and download instructions, please write to sales(a)egenix.com. Enjoy, -- -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Nov 06 2014) >>> Python Projects, Consulting and Support ... http://www.egenix.com/ >>> mxODBC.Zope/Plone.Database.Adapter ... http://zope.egenix.com/ >>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ________________________________________________________________________ 2014-10-24: Released eGenix pyOpenSSL 0.13.5 ... http://egenix.com/go63 ::::: Try our mxODBC.Connect Python Database Interface for free ! :::::: eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/

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