[Zope-dev] Re: [Checkins] SVN: zope.file/trunk/ Make a good package out of this package.

2007-11-07 Thread Bernd Dorn


On 02.11.2007, at 15:43, Benji York wrote:


Stephan Richter wrote:
zope.file was the *only* package of the 150+ I worked on that did  
not have extras.


I'm surprised.  I thought it was generally agreed upon not to do  
that. Darn.


no - afaik there is no agreement upon this, and imho it is not good  
to put extras in the general deps because one always ends up fetching  
all the zope packages as deps if using any zope.* package


-100 from me for removing extras




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Re: [Zope-dev] Re: [Checkins] SVN: zope.file/trunk/ Make a good package out of this package.

2007-11-02 Thread Jim Fulton


On Nov 2, 2007, at 1:04 PM, Tres Seaver wrote:


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Benji York wrote:

Stephan Richter wrote:

Overall I am in favor in switching to 'test_require'.


If I recall correctly, "test_require" doesn't actually do  
anything. :)


setuptools installs 'tests_requires' dependencies when you run tests
from 'setup.py test'.


Benji meant "doesn't actually do anything useful". :)

Jim

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[Zope-dev] Re: [Checkins] SVN: zope.file/trunk/ Make a good package out of this package.

2007-11-02 Thread Tres Seaver
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Benji York wrote:
> Stephan Richter wrote:
>> Overall I am in favor in switching to 'test_require'.
> 
> If I recall correctly, "test_require" doesn't actually do anything. :)

setuptools installs 'tests_requires' dependencies when you run tests
from 'setup.py test'.

Tres.
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Re: [Zope-dev] Re: [Checkins] SVN: zope.file/trunk/ Make a good package out of this package.

2007-11-02 Thread Christian Theune
Hi,

Am Freitag, den 02.11.2007, 10:53 -0400 schrieb Stephan Richter:
> I only know of the general problem and not the specific one. Let's say you 
> have a package A with extras AE1 and AE2. Then you really have to write tests 
> for three installation cases: A, A with AE1, A with AE2. Currently we do not 
> have technology doing this. It gets even worse when you bring another package 
> into play. Let's say you have package B with extras BE1 and BE2 that depends 
> on package A. You now have to test (B, A), (B, A with AE1), (B, A with AE2), 
> (B with BE1, A), ... So the test scenarios multiply. It is just unmanageable. 
> To put the final nail in the coffin, extras are not even fully supported by 
> setuptools.

I do understand the `test extra` is a deviation from `test what you fly,
fly what you test`. Which means that the `anti-extras` argument would
require us to provide one package with the `pure tests` and put
integration tests into another package, carefully selecting which
combinations we want that demonstrate support for interoperability.

> Overall I am in favor in switching to 'test_require'.

Me too, although I see the point as stated above which is a counter
argument. I'm somewhat indecisive right now, but I think that using
test_require is better for the current situation than staying with the
bad dependency mixture. Maybe some `test-only` integration packages
would be nice, but I don't see anybody do the work.

Christian

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Re: [Zope-dev] Re: [Checkins] SVN: zope.file/trunk/ Make a good package out of this package.

2007-11-02 Thread Benji York

Stephan Richter wrote:

Overall I am in favor in switching to 'test_require'.


If I recall correctly, "test_require" doesn't actually do anything. :)
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[Zope-dev] Re: [Checkins] SVN: zope.file/trunk/ Make a good package out of this package.

2007-11-02 Thread Stephan Richter
On Friday 02 November 2007, Christian Theune wrote:
> > I think that extras for tests are a necessary evil until we have
> > unscrewed the dependencies of the functional test setups.
>
> Depends on what 'unscrew' means. Functional test setups might want to
> demonstrate more in-depth, "real-life" scenarios where they have to
> introduce more dependencies than the actual package itself needs, so two
> sets of dependencies are needed anyway, or not?

He he, yep, you are right. The point I was trying to make is that unscrewing 
the functional tests dependencies is a pointless exercise since you want to 
demonstrate the functionality in one more realistic environment. Like you 
said. And those dependencies might not match my use of the package.

BTW, I think you guys did a good job of separating the real and testing 
dependencies for the Zope packages.

Regards,
Stephan
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Re: [Zope-dev] Re: [Checkins] SVN: zope.file/trunk/ Make a good package out of this package.

2007-11-02 Thread Stephan Richter
On Friday 02 November 2007, Christian Theune wrote:
> I see that there is a special 'tests_require' in setuptools anyway.  We
> could give up on extras using tests_require if the testrunner recipe (or
> buildout) knew how to handle those.

Yes, I think this would be the way to go. I have seen this option too, but was 
not sure how supported and desired it is. Jim, can you comment on 
the 'test_require' option?

> I (and other gocept guys) unscrewed the dependencies for almost all
> zope.* packages (at least those that come from the old big tree) using
> this approach. We really wanted to get the normal dependencies right
> there, and moving the test dependencies out of the way was a large part
> of that.

Yes, and it works very well, thanks!

> I'm happy using extras to do that. I'm not 100% sure on the complete
> reasoning against extras but my understanding is that this specific use
> case works. Can someone explain whether this use case has a problem too?

I only know of the general problem and not the specific one. Let's say you 
have a package A with extras AE1 and AE2. Then you really have to write tests 
for three installation cases: A, A with AE1, A with AE2. Currently we do not 
have technology doing this. It gets even worse when you bring another package 
into play. Let's say you have package B with extras BE1 and BE2 that depends 
on package A. You now have to test (B, A), (B, A with AE1), (B, A with AE2), 
(B with BE1, A), ... So the test scenarios multiply. It is just unmanageable. 
To put the final nail in the coffin, extras are not even fully supported by 
setuptools.

Overall I am in favor in switching to 'test_require'.

Regards,
Stephan
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[Zope-dev] Re: [Checkins] SVN: zope.file/trunk/ Make a good package out of this package.

2007-11-02 Thread Benji York

Stephan Richter wrote:
zope.file was the *only* package of the 150+ I worked on that did not have 
extras.


I'm surprised.  I thought it was generally agreed upon not to do that. 
Darn.

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Senior Software Engineer
Zope Corporation
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[Zope-dev] Re: [Checkins] SVN: zope.file/trunk/ Make a good package out of this package.

2007-11-02 Thread Christian Theune
Hi,

Am Freitag, den 02.11.2007, 10:23 -0400 schrieb Stephan Richter:
> On Friday 02 November 2007, Benji York wrote:
> > Stephan Richter wrote:
> > > On Friday 02 November 2007, Benji York wrote:
> > >> Why the test extra?
> > >
> > > to get it working. :-) There were several packages required by
> > > ftesting.zcml.
> >
> > We generally put those in install_requires and eschew extras.
> 
> zope.file was the *only* package of the 150+ I worked on that did not have 
> extras. If this changes, I want a canconical community decision with someone 
> writing a script fixing it everywhere for the next releases.

Hmm. I've been doing that dance using extras too.

I see that there is a special 'tests_require' in setuptools anyway.  We
could give up on extras using tests_require if the testrunner recipe (or
buildout) knew how to handle those.

I (and other gocept guys) unscrewed the dependencies for almost all
zope.* packages (at least those that come from the old big tree) using
this approach. We really wanted to get the normal dependencies right
there, and moving the test dependencies out of the way was a large part
of that.

I'm happy using extras to do that. I'm not 100% sure on the complete
reasoning against extras but my understanding is that this specific use
case works. Can someone explain whether this use case has a problem too?
 
> I know why extras are bad, Jim explained it to me. I would still argue that 
> we 
> need them (for tests only, of course). For example, the zope.file tests 
> require zope.app.zcmlfiles, which effectively pulls in 70 packages, including 
> the entire ZMI, Rotterdam, and old form framework. But what if I do not want 
> to install ZMI, Rotterdam and the old form stuff and just use the API of 
> zope.file?
> 
> I think that extras for tests are a necessary evil until we have unscrewed 
> the 
> dependencies of the functional test setups.

Depends on what 'unscrew' means. Functional test setups might want to
demonstrate more in-depth, "real-life" scenarios where they have to
introduce more dependencies than the actual package itself needs, so two
sets of dependencies are needed anyway, or not?

Christian

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[Zope-dev] Re: [Checkins] SVN: zope.file/trunk/ Make a good package out of this package.

2007-11-02 Thread Stephan Richter
On Friday 02 November 2007, Benji York wrote:
> Stephan Richter wrote:
> > On Friday 02 November 2007, Benji York wrote:
> >> Why the test extra?
> >
> > to get it working. :-) There were several packages required by
> > ftesting.zcml.
>
> We generally put those in install_requires and eschew extras.

zope.file was the *only* package of the 150+ I worked on that did not have 
extras. If this changes, I want a canconical community decision with someone 
writing a script fixing it everywhere for the next releases.

I know why extras are bad, Jim explained it to me. I would still argue that we 
need them (for tests only, of course). For example, the zope.file tests 
require zope.app.zcmlfiles, which effectively pulls in 70 packages, including 
the entire ZMI, Rotterdam, and old form framework. But what if I do not want 
to install ZMI, Rotterdam and the old form stuff and just use the API of 
zope.file?

I think that extras for tests are a necessary evil until we have unscrewed the 
dependencies of the functional test setups.

Regards,
Stephan
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CBU Physics & Chemistry (B.S.) / Tufts Physics (Ph.D. student)
Web2k - Web Software Design, Development and Training
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[Zope-dev] Re: [Checkins] SVN: zope.file/trunk/ Make a good package out of this package.

2007-11-02 Thread Benji York

Stephan Richter wrote:

On Friday 02 November 2007, Benji York wrote:

Why the test extra?


to get it working. :-) There were several packages required by ftesting.zcml.


We generally put those in install_requires and eschew extras.
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[Zope-dev] Re: [Checkins] SVN: zope.file/trunk/ Make a good package out of this package.

2007-11-02 Thread Stephan Richter
On Friday 02 November 2007, Benji York wrote:
> Why the test extra?

to get it working. :-) There were several packages required by ftesting.zcml.

Regards,
Stephan
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Web2k - Web Software Design, Development and Training
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[Zope-dev] Re: [Checkins] SVN: zope.file/trunk/ Make a good package out of this package.

2007-11-02 Thread Benji York

Stephan Richter wrote:

Log message for revision 81401:
  Make a good package out of this package.
  


Changed:
  A   zope.file/trunk/CHANGES.txt
  A   zope.file/trunk/README.txt
  U   zope.file/trunk/buildout.cfg
  U   zope.file/trunk/setup.py



+  extras_require = dict(
+  test=['zope.app.testing',
+'zope.app.securitypolicy',
+'zope.app.zcmlfiles',
+'zope.testbrowser',
+'zope.formlib',
+'zope.app.server']),


Why the test extra?
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