Re: [Zope3-Users] Modified IntId utility
On 24. Sep 2007, at 18:53, Maken Seteva wrote: Fellow Zopers. I have made a slight modification to my intid util by inheriting from IntId and overriding _generateId(). I do this to be sure that all new created objects will have an incrementing number where the first object created gets id 1, the next gets id 2 and so on. This way I get for free sorting by oldest/newest. Please do not attach additional meaning to intids. The value of an object's intid is (and should be) completely irrelevant. [snip] What do you think about this? Is it safe to do this, or have i forgotten any unforseen oddities that might occur in the future :O Your code looks like a conflict-magnet to me. I suggest you read up on why counting in the ZODB is a bad idea. Stefan -- It doesn't necessarily do it in chronological order, though. --Douglas Adams ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Modified IntId utility
Hi, On Mon, Sep 24, 2007 at 06:53:58PM +0200, Maken Seteva wrote: Fellow Zopers. I have made a slight modification to my intid util by inheriting from IntId and overriding _generateId(). I do this to be sure that all new created objects will have an incrementing number where the first object created gets id 1, the next gets id 2 and so on. This way I get for free sorting by oldest/newest. class MyIntIds(IntId): # We need a non-volatile nextid nextid = None def _generateId(self): # In the unlikely event that the nextid already # exists, we run this in a while loop to fix it. while True: if len(self) == 0: self.nextid = 1 elif self.nextid is None: self.nextid = self.refs.maxKey() + 1 uid = self.nextid self.nextid += 1 if uid not in self.refs: return uid # Normally we would never get here.. self.nextid = None What do you think about this? Is it safe to do this, or have i forgotten any unforseen oddities that might occur in the future :O I'm using a modified IntId utility which starts IDs at 1 and counts upwards, too. I needed some permanent link for each object which was easy to implement via IntId. The modification was made to safe keystrokes when typing the permalink. Typing http://server/~251 is a lot easier than http://server/~344357462 :-) . However, I don't use those IDs for anything else - like sorting. Regards, Frank ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
[Zope3-Users] zopeproject (debugging an app)
In the doc. for zopeproject, it says: Note: Even exceptions such as Unauthorized (which normally leads to a login screen) or NotFound (which normally leads to an HTTP 404 response) will trigger the debugger. Is there a workaround, so that I can run bin/paster server debug.ini on an application that requires a login (ie: starts out by issuing an Unauthorized exception), or is removing the zcml decls that causes the login challenge to be issued, the only way to debug such an app? Thanks, Roy. ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] Modified IntId utility
On Sep 25, 2007, at 3:27 AM, Frank Burkhardt wrote: I'm using a modified IntId utility which starts IDs at 1 and counts upwards, too. I needed some permanent link for each object which was easy to implement via IntId. The modification was made to safe keystrokes when typing the permalink. Typing http://server/~251 is a lot easier than http://server/~344357462 :-) . However, I don't use those IDs for anything else - like sorting. We do. We use 64-bit intids arranged in ways that help with our most common sorting requirements (usually time related). Higher-order bits provide the sort order we care about, and the remaining lower- order bits provide randomness so that we reduce the chance of conflict errors. (It still can have a higher theoretical chance for conflict errors than the classic intid approach to assigning keys, but the BTree conflict resolution algorithm should eliminate the increase in practice.) So, we don't follow the exact pattern in the original post, and using the general pattern has subtleties you need to get right. For instance, you need to avoid conflict errors, as Stefan mentioned; and, for simplicity, we regard intids to be immutable and so they should only be tied to immutable data points about your objects. But we believe the idea--letting intids have meaning, particularly for sorting--has merit generally. ...sigh, we need to do some open-sourcing. We've been pretty busy. Gary ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
[Zope3-Users] zope.app.session and eggs?
I finally got the courage to try the eggs install on Windows after reading the documentation on zopeproject. It worked great and I have my brand new project working. Now here is the problem. I'm assuming a python setup.py install will download all the parts and install it into my python site-packages directory as that seems to be what it is doing. But I get an error when i get to the zope.app.session package. Here is the trace. Now I'm not sure why it is trying to get the 3.4 version as the zopeproject downloaded the 3.5dev. Can someone shed some light on this? Searching for zope.app.session Reading http://pypi.python.org/simple/zope.app.session/ Reading http://svn.zope.org/zope.app.session Best match: zope.app.session 3.4.0 Downloading http://pypi.python.org/packages/source/z/zope.app.session/zope.app.s ession-3.4.0.zip#md5=c3d63fd6917049ed3556d32972441031 Processing zope.app.session-3.4.0.zip Running zope.app.session-3.4.0\setup.py -q bdist_egg --dist-dir c:\docume~1\mats \locals~1\temp\easy_install-3z0srr\zope.app.session-3.4.0\egg-dist-tmp-b02rfo error: c:\docume~1\mats\locals~1\temp\easy_install-3z0srr\zope.app.session-3.4.0 \CHANGES.txt: No such file or directory -- View this message in context: http://www.nabble.com/zope.app.session-and-eggs--tf4517094.html#a12884814 Sent from the Zope3 - users mailing list archive at Nabble.com. ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
[Zope3-Users] Re: zope.app.session and eggs?
Mats Nordgren wrote: I finally got the courage to try the eggs install on Windows after reading the documentation on zopeproject. It worked great and I have my brand new project working. Great to hear. Now here is the problem. I'm assuming a python setup.py install will download all the parts and install it into my python site-packages directory as that seems to be what it is doing. Yup. Note that this isn't quite recommended. Messing with the global Python installation will make it very hard to run different kinds of sandboxes (that require different versions of packages). I suggest creating individual, quarantined sandboxes using zopeproject: http://cheeseshop.python.org/pypi/zopeproject But I get an error when i get to the zope.app.session package. Here is the trace. Now I'm not sure why it is trying to get the 3.4 version as the zopeproject downloaded the 3.5dev. Can someone shed some light on this? Searching for zope.app.session Reading http://pypi.python.org/simple/zope.app.session/ Reading http://svn.zope.org/zope.app.session Best match: zope.app.session 3.4.0 Downloading http://pypi.python.org/packages/source/z/zope.app.session/zope.app.s ession-3.4.0.zip#md5=c3d63fd6917049ed3556d32972441031 Processing zope.app.session-3.4.0.zip Running zope.app.session-3.4.0\setup.py -q bdist_egg --dist-dir c:\docume~1\mats \locals~1\temp\easy_install-3z0srr\zope.app.session-3.4.0\egg-dist-tmp-b02rfo error: c:\docume~1\mats\locals~1\temp\easy_install-3z0srr\zope.app.session-3.4.0 \CHANGES.txt: No such file or directory Yes. Somebody created a new zope.app.session egg that doesn't contain a CHANGES.txt. We'll try and upload a new one. Thanks for catching this. -- http://worldcookery.com -- Professional Zope documentation and training ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] zope.app.session and eggs?
I suggest creating individual, quarantined sandboxes using zopeproject: http://cheeseshop.python.org/pypi/zopeproject Can you tell me how I can get the eggs in the sandbox into the python path so my auto-completion will work while developing for Zope? When I do a python setup.py install the eggs are added to the easy-install.pth this does not happen in the sandbox. I guess this can be done manually but creating pth files for each package in the sandbox seems like a hassle and hopefully there is a better way. Thanks -- View this message in context: http://www.nabble.com/zope.app.session-and-eggs--tf4517094.html#a12885645 Sent from the Zope3 - users mailing list archive at Nabble.com. ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] zope.app.session and eggs?
I think that he's saying that it's better to have a virtual python enviroment instead of use the global python. In other thread in the list you will find something like this: $ python virtualenv.py env ... $ cd env $ bin/easy_install zopeproject ... $ bin/zopeproject HelloWorld checkout: http://cheeseshop.python.org/pypi/virtualenv http://peak.telecommunity.com/DevCenter/EasyInstall#creating-a-virtual-python cheers On 9/25/07, Mats Nordgren [EMAIL PROTECTED] wrote: I suggest creating individual, quarantined sandboxes using zopeproject: http://cheeseshop.python.org/pypi/zopeproject Can you tell me how I can get the eggs in the sandbox into the python path so my auto-completion will work while developing for Zope? When I do a python setup.py install the eggs are added to the easy-install.pth this does not happen in the sandbox. I guess this can be done manually but creating pth files for each package in the sandbox seems like a hassle and hopefully there is a better way. Thanks -- View this message in context: http://www.nabble.com/zope.app.session-and-eggs--tf4517094.html#a12885645 Sent from the Zope3 - users mailing list archive at Nabble.com. ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users -- Santiago Videla www.revolucionesweb.com.ar Sigue la mata dando de que hablar siempre abajo y a la izquierda donde el pensamiento que se hace corazón resplandece con la palabra sencilla y humilde que [EMAIL PROTECTED] [EMAIL PROTECTED] somos. ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] zope.app.session and eggs?
I suggest creating individual, quarantined sandboxes using zopeproject: http://cheeseshop.python.org/pypi/zopeproject Can you tell me how I can get the eggs in the sandbox into the python path so my auto-completion will work while developing for Zope? When I do a python setup.py install the eggs are added to the easy-install.pth this does not happen in the sandbox. I guess this can be done manually but creating pth files for each package in the sandbox seems like a hassle and hopefully there is a better way. Thanks -- View this message in context: http://www.nabble.com/zope.app.session-and-eggs--tf4517094.html#a12885689 Sent from the Zope3 - users mailing list archive at Nabble.com. ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] zope.app.session and eggs?
I think that he's saying that it's better to have a virtual python enviroment instead of use the global python. In other thread in the list you will find something like this: $ python virtualenv.py env ... $ cd env $ bin/easy_install zopeproject ... $ bin/zopeproject HelloWorld That looks like a nice solution. Wasn't aware of this before. Now when I run the zopeproject I get the following error. Not sure it is related to virtualenv.py or if it is something that is changed in the PyPI. snip src\zope\i18nmessageid\_zope_i18nmessageid_message.c:125: warning: 'Message_trav erse' defined but not used error: Setup script exited with error: command 'gcc' failed with exit status 1 An error occured when trying to install zope.i18nmessageid 3.4.2.Look above this message for any errors thatwere output by easy_install. An error occured when trying to install zope.i18nmessageid 3.4.2.Look above this message for any errors thatwere output by easy_install. While: Installing app. Getting distribution for 'zope.i18nmessageid'. Error: Couldn't install: zope.i18nmessageid 3.4.2 Thanks, Mats -- View this message in context: http://www.nabble.com/zope.app.session-and-eggs--tf4517094.html#a12887987 Sent from the Zope3 - users mailing list archive at Nabble.com. ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] zope.app.session and eggs?
PS, this only happens in the virtual instance, it compiles with MinGW just fine on a pure zopeproject with global python. Mats Nordgren wrote: I think that he's saying that it's better to have a virtual python enviroment instead of use the global python. In other thread in the list you will find something like this: $ python virtualenv.py env ... $ cd env $ bin/easy_install zopeproject ... $ bin/zopeproject HelloWorld That looks like a nice solution. Wasn't aware of this before. Now when I run the zopeproject I get the following error. Not sure it is related to virtualenv.py or if it is something that is changed in the PyPI. snip src\zope\i18nmessageid\_zope_i18nmessageid_message.c:125: warning: 'Message_trav erse' defined but not used error: Setup script exited with error: command 'gcc' failed with exit status 1 An error occured when trying to install zope.i18nmessageid 3.4.2.Look above this message for any errors thatwere output by easy_install. An error occured when trying to install zope.i18nmessageid 3.4.2.Look above this message for any errors thatwere output by easy_install. While: Installing app. Getting distribution for 'zope.i18nmessageid'. Error: Couldn't install: zope.i18nmessageid 3.4.2 Thanks, Mats -- View this message in context: http://www.nabble.com/zope.app.session-and-eggs--tf4517094.html#a12888094 Sent from the Zope3 - users mailing list archive at Nabble.com. ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] zope.app.session and eggs?
Yes. Somebody created a new zope.app.session egg that doesn't contain a
CHANGES.txt. We'll try and upload a new one. Thanks for catching this.
Looks like zope.app.session is fixed, thanks. Now I get an error with
zope.event.
Installed h:\python24\lib\site-packages\zope.event-3.4.0-py2.4.egg
Searching for zope.minmax
Reading http://pypi.python.org/simple/zope.minmax/
Couldn't find index page for 'zope.minmax' (maybe misspelled?)
Scanning index of all packages (this may take a while)
Reading http://pypi.python.org/simple/
No local packages or download links found for zope.minmax
error: Could not find suitable distribution for
Requirement.parse('zope.minmax')
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[Zope3-Users] ftesting.zcml in zopeproject
Couple of questions: When I use zopeproject to create a project, the project name and the package name are the same... ie: $HOME/py24/MYPROJ/src/MYPROJ/... Can I override this to get a package name that is different than the project name? Also, when I run bin/test, I get: bin/test Running tests at level 1 Running zope.app.testing.functional.Functional tests: Set up zope.app.testing.functional.Functional Traceback (most recent call last): ... File $HOME/py24/eggs/tmp1w5hah/zope.configuration-3.4.0b1-py2.4.egg/zope/configuration/xmlconfig.py, line 539, in include File $HOME/py24/eggs/tmp1w5hah/zope.configuration-3.4.0b1-py2.4.egg/zope/configuration/xmlconfig.py, line 427, in openInOrPlain IOError: [Errno 2] No such file or directory: '$HOME/py24/MYPROJ/parts/test/ftesting.zcml' However, I find that there is such an ftesting.zcml file - just not in the right place. Symlinking/copying it solves the problem: ln -s $HOME/py24/MYPROJ/src/MYPROJ/ftesting.zcml $HOME/py24/MYPROJ/parts/test/ftesting.zcml What gives? Thanks for your responses... ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
[Zope3-Users] Re: ftesting.zcml in zopeproject
[EMAIL PROTECTED] wrote: When I use zopeproject to create a project, the project name and the package name are the same... ie: $HOME/py24/MYPROJ/src/MYPROJ/... Not quite. By default, the project name will be used as the directory name for the sandbox and as the name of the egg (in setup.py). The lower case of the project name will be used for the package name. Can I override this to get a package name that is different than the project name? * The name of the directory containing the sandbox is completely irrelevant. You can completely move it around, so long as you run bin/buildout afterwards. * The name of the package is completely arbitrary as well. You may rename it if you wish. Just make sure you update every occurrence of that name in the Python code and ZCML as well. * The name of the egg is defined in setup.py:: setup(name='...', You may change it any time, as long as you also update buildout.cfg (where the egg name is mentioned a couple of times) and then run bin/buildout. Thanks for bringing up this question. I will add this to zopeproject's README.txt file. Also, when I run bin/test, I get: bin/test Running tests at level 1 Running zope.app.testing.functional.Functional tests: Set up zope.app.testing.functional.Functional Traceback (most recent call last): ... File $HOME/py24/eggs/tmp1w5hah/zope.configuration-3.4.0b1-py2.4.egg/zope/configuration/xmlconfig.py, line 539, in include File $HOME/py24/eggs/tmp1w5hah/zope.configuration-3.4.0b1-py2.4.egg/zope/configuration/xmlconfig.py, line 427, in openInOrPlain IOError: [Errno 2] No such file or directory: '$HOME/py24/MYPROJ/parts/test/ftesting.zcml' However, I find that there is such an ftesting.zcml file - just not in the right place. Symlinking/copying it solves the problem: ln -s $HOME/py24/MYPROJ/src/MYPROJ/ftesting.zcml $HOME/py24/MYPROJ/parts/test/ftesting.zcml What gives? It seems you're using the old default functional test layer from zope.app.testing.functional. In Zope 3 instances there used to be a global ftesting.zcml that this layer would look for and load. In a buildout, that'd be the parts/test directory. Nowadays we define package-specific functional test layers. Your zopeproject-generated code does that too. It comes with a custom ftesting.zcml (which you found already) and defines a FunctionalLayer in pkg.testing based on that file. You should apply this layer to your functional test suites. For your convenience, the pkg.testing module also defines FunctionalDocFileSuite, FunctionalDocTestSuite and a FunctionalTestCase variants with that layer applied already. So if you import them for pkg.testing rather than zope.app.testing.functional, you won't have to do this symlinking. This is documented already, by the way: http://pypi.python.org/pypi/zopeproject#writing-functional-tests -- http://worldcookery.com -- Professional Zope documentation and training ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
