Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2010-01-03 Thread David Lyon
On Mon, Dec 28, 2009 at 1:15 AM, Tarek Ziade wrote: This new operator removes the ambiguity the original proposal had, without making it more complex for common use cases. So if you dislike it, you will need to propose something else that also fixes the ambiguity we had. Ok.

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2010-01-03 Thread MRAB
David Lyon wrote: On Mon, Dec 28, 2009 at 1:15 AM, Tarek Ziade wrote: This new operator removes the ambiguity the original proposal had, without making it more complex for common use cases. So if you dislike it, you will need to propose something else that also fixes the ambiguity we had.

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2010-01-03 Thread Martin v. Löwis
Requires-Dist: pywin32 (1.0); sys.platform == 'win32' Requires-Dist: [Windows] pywin32 1.0+ That's simpler, shorter, and less ambiguous. Easier to parse for package managers. Don't you want the PEP to complete? Why this bike-shedding? I can agree it's shorter. I can't agree that it's

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2010-01-03 Thread sstein...@gmail.com
On Jan 3, 2010, at 7:21 PM, Martin v. Löwis wrote: Requires-Dist: pywin32 (1.0); sys.platform == 'win32' Requires-Dist: [Windows] pywin32 1.0+ That's simpler, shorter, and less ambiguous. Easier to parse for package managers. Don't you want the PEP to complete? Why this

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2010-01-03 Thread David Lyon
Hi Martin, Happy New Year, Requires-Dist: pywin32 (1.0); sys.platform == 'win32' Requires-Dist: [Windows] pywin32 1.0+ That's simpler, shorter, and less ambiguous. Easier to parse for package managers. Don't you want the PEP to complete? Why this bike-shedding? Well, I'm just helping

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread david . lyon
Hi Stephen, BTW, *all* of the Python applications I really care about make a point of specifying a range of versions they work with (or bundle a particular version). Yes, well that was my point exactly. If opinion is against commas, then we can take them out. That would give us something

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Tarek Ziadé
On Mon, Dec 28, 2009 at 7:39 AM, Lennart Regebro rege...@gmail.com wrote: On Mon, Dec 28, 2009 at 05:37, Terry Reedy tjre...@udel.edu wrote: If the first x.y release were called x.y.0, (does not sys.version include 0?) then x.y would unambiguously mean the series. Yeah, well, although

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Tarek Ziadé
On Mon, Dec 28, 2009 at 6:20 AM, Tres Seaver tsea...@palladion.com wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Tarek Ziadé wrote: On Mon, Dec 28, 2009 at 1:41 AM, Sridhar Ratnakumar sridh...@activestate.com wrote: [..] Tarek, I am a bit confused at the current proposal combined

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Tarek Ziadé
On Mon, Dec 28, 2009 at 6:16 AM, Tres Seaver tsea...@palladion.com wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Terry Reedy wrote: On 12/27/2009 7:48 PM, Antoine Pitrou wrote: Tarek Ziadéziade.tarekat  gmail.com  writes: This was ambiguous because it was unclear, as MvL stated,  if

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Tarek Ziadé
On Mon, Dec 28, 2009 at 3:03 AM, MRAB pyt...@mrabarnett.plus.com wrote: Martin v. Löwis wrote: No application developer will quickly figure out what a tilde means. Maybe it means 'roughly', but it requires too much thought and is ambiguous. 2.5 is not roughly 2.5.2. It is the same exactly.

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Martin v. Löwis
david.l...@preisshare.net wrote: No application developer will quickly figure out what a tilde means. Maybe it means 'roughly', but it requires too much thought and is ambiguous. 2.5 is not roughly 2.5.2. It is the same exactly. Before we had : Requires-Python: 2.5, 2.6 That made much

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Stephen J. Turnbull
Antoine Pitrou writes: And in fact this case is often more the important one. Packages that depend on having a *recent* version of python will often crash quickly, before doing permanent damage, when an undefined syntax, function, or method is invoked, while packages that depend on

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Tarek Ziadé
On Mon, Dec 28, 2009 at 4:17 AM, Stephen J. Turnbull step...@xemacs.org wrote: Ben Finney writes:   Instead, the default should be `=='. That is, `Requires-Python: 3'   should be equivalent to `Requires-Python: ==3'; and only 3 or 3.0 or   3.0.0 etc. will match. I maintain that is what most

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Ben Finney
Tarek Ziadé ziade.ta...@gmail.com writes: What happened is that Martin came late in the discussions in Distutils-SIG after I've forwarded the final mail in Catalog-SIG and after I did send it here (the mail where I said Here's the mail I'll send to python-dev for PEP 345, if anyone sees a

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Martin v. Löwis
Does that mean we should add or? Requires-Python: 2.5 or 2.6 It would be redundant to have it, since you can also write Requires-Python: =2.5, 2.7 Should we also use and instead of ,? Requires-Python: = 2.5 and 2.6 Perhaps. I think the Linux packaging formats uniformly use

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Martin v. Löwis
It seems to me that all this version range talk relates pretty directly to PEP 386. The Python version numbers themselves are the simplest type of Normalized Versions, and since comparisons of NormalizedVersions are defined in PEP 386, and that's really all we're talking about here,

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Tarek Ziadé
On Mon, Dec 28, 2009 at 10:23 AM, Ben Finney ben+pyt...@benfinney.id.au wrote: [..] So, if no one object, I propose to continue this thread about the way range should be compared, to see if we meet a consensus quite soon. If not, I guess we can go back to distutils-SIG and invite people over

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Martin v. Löwis
And IMO the choice of ~= or =~ for the range match should be avoided, since that looks like the regexp search operator in Perl, and there ~= 3 would match 3, 3.0.4, and 2.3.5. The next obvious interpretation is fuzzy match, but that doesn't have an obvious, more specific meaning. The usual

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Martin v. Löwis
Point of order: what is the point of sending the discussion off to the distutils SIG if we are just going to bikeshed it (again!) here. Bike-shedding it here is indeed inappropriate. If the PEP had listed all possible arguments that can come up in this discussion, and the corresponding counter

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Martin v. Löwis
I think Antoine's proposal is good (using the range when 2.5 is used, and using 2.5.0 when explicitely needed), and fixes Martin's concerns. So I would be in favor of removing ~= and using Antoine's rule; So specifying 2.5 would be a short-hand for *what*? Regards, Martin

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Tarek Ziadé
2009/12/28 Martin v. Löwis mar...@v.loewis.de: I think Antoine's proposal is good (using the range when 2.5 is used, and using 2.5.0 when explicitely needed), and fixes Martin's concerns. So I would be in favor of removing ~= and using Antoine's rule; So specifying 2.5 would be a short-hand

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Lennart Regebro
Another penny dropped when it comes to version specs. Should 2.5 mean 2.5.0 only, or 2.5.*. Well... why would you ever need to specify 2.5.0 only. That's a nonsense specification. My project requires Python 2.5.0, but doesn't work with 2.5.1. Huh!? Well, then fix it, goofball. :) 2.5 can mean

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread david . lyon
Hi Len, Another penny dropped when it comes to version specs. Pennies are good. They build value. With examples being: Requires-Python: [2.5.2:3]; [3.1:] What about going even more simple... Requires-Python: 2.5..3 3.1.. If we use double-dots to replace colons, the .. will translate

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Tarek Ziadé
On Mon, Dec 28, 2009 at 11:21 AM, Lennart Regebro rege...@gmail.com wrote: Another penny dropped when it comes to version specs. Should 2.5 mean 2.5.0 only, or 2.5.*. Well... why would you ever need to specify 2.5.0 only. That's a nonsense specification. My project requires Python 2.5.0, but

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Martin v. Löwis
So specifying 2.5 would be a short-hand for *what*? 2.5 would be a shorthand for 2.5.x. So, equivalent to : =2.5.0, 2.6.0 Ok, so it's not a shorthand for a single operator anymore, but for a more complex term. Fine with me. 2.5.0 would be the notation required to describe this specific

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Martin v. Löwis
Another penny dropped when it comes to version specs. Should 2.5 mean 2.5.0 only, or 2.5.*. Well... why would you ever need to specify 2.5.0 only. That's a nonsense specification. My project requires Python 2.5.0, but doesn't work with 2.5.1. Huh!? Well, then fix it, goofball. :) This ==

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Lennart Regebro
On Mon, Dec 28, 2009 at 11:27, david.l...@preisshare.net wrote: What about going even more simple... Requires-Python: 2.5..3 3.1.. Doh! Of course. Works for me. In fact, the dots could be dashes as well. Requires-Python: 2.5-3 3.1- Commas, spaces, semicolons, whatever. We could allow:

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Tarek Ziadé
2009/12/28 Martin v. Löwis mar...@v.loewis.de: [..] 2.5.0 would be the notation required to describe this specific micro version. I think it would be a shorthand for =2.5.0, 2.5.1, right? Or are you saying that specifying a version is sometimes a shorthand for a range, and sometimes a

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Lennart Regebro
On Mon, Dec 28, 2009 at 11:54, Martin v. Löwis mar...@v.loewis.de wrote: This == operator is fairly common in Debian. For example, the apache2 package installed on my system specifies Oh, absolutely, but that's when you specify interdependencies between packages. Nobody makes a Python package

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Tarek Ziadé
On Mon, Dec 28, 2009 at 11:57 AM, Lennart Regebro rege...@gmail.com wrote: On Mon, Dec 28, 2009 at 11:27,  david.l...@preisshare.net wrote: What about going even more simple... Requires-Python: 2.5..3 3.1.. Doh! Of course. Works for me. In fact, the dots could be dashes as well.

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Scott Dial
On 12/28/2009 5:42 AM, Martin v. Löwis wrote: So specifying 2.5 would be a short-hand for *what*? 2.5 would be a shorthand for 2.5.x. So, equivalent to : =2.5.0, 2.6.0 Ok, so it's not a shorthand for a single operator anymore, but for a more complex term. Fine with me. 2.5.0 would be

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Lennart Regebro
On Mon, Dec 28, 2009 at 12:02, Tarek Ziadé ziade.ta...@gmail.com wrote: -1. This looks like typos the developer made on his versions definitions. Nah. And if not, is subject to errors by forgetting dashes or dots. Eh, yeah but that goes for ANY syntax. Having the same syntax as for package

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Tarek Ziadé
On Mon, Dec 28, 2009 at 12:04 PM, Lennart Regebro rege...@gmail.com wrote: On Mon, Dec 28, 2009 at 12:02, Tarek Ziadé ziade.ta...@gmail.com wrote: -1. This looks like typos the developer made on his versions definitions. Nah. And if not, is subject to errors by forgetting dashes or dots.

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Tarek Ziadé
On Mon, Dec 28, 2009 at 12:02 PM, Lennart Regebro rege...@gmail.com wrote: On Mon, Dec 28, 2009 at 11:54, Martin v. Löwis mar...@v.loewis.de wrote: This == operator is fairly common in Debian. For example, the apache2 package installed on my system specifies Oh, absolutely, but that's when

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Ben Finney
Lennart Regebro rege...@gmail.com writes: On Mon, Dec 28, 2009 at 11:54, Martin v. Löwis mar...@v.loewis.de wrote: This == operator is fairly common in Debian. For example, the apache2 package installed on my system specifies Oh, absolutely, but that's when you specify interdependencies

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Antoine Pitrou
How can they know that they depend on a quirk in behaviour of an older version if a newer version hasn't been released? This sounds bogus. Of course a newer version has been released. Who said it hasn't been? Eg, the discussion of =2.5. Hasn't 2.6 been released? Or am I

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Stephen J. Turnbull
Antoine Pitrou writes: How can they know that they depend on a quirk in behaviour of an older version if a newer version hasn't been released? This sounds bogus. Of course a newer version has been released. Who said it hasn't been? Eg, the discussion of =2.5. Hasn't 2.6

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Paul Moore
2009/12/28 Martin v. Löwis mar...@v.loewis.de: Does that mean we should add or?     Requires-Python: 2.5 or 2.6 It would be redundant to have it, since you can also write Requires-Python: =2.5, 2.7 Should we also use and instead of ,?     Requires-Python: = 2.5 and 2.6 Perhaps. I

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread David Lyon
On Mon, 28 Dec 2009 10:42:20 +0100, Martin v. Löwis mar...@v.loewis.de wrote: On distutils-sig, a vocal fraction seems to think otherwise. From my short interaction there, I now think that comparison operators are indeed hard to use, and that the concept of a half-open interval, and how you

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Michael Foord
On 28/12/2009 22:57, David Lyon wrote: On Mon, 28 Dec 2009 10:42:20 +0100, Martin v. Löwismar...@v.loewis.de wrote: On distutils-sig, a vocal fraction seems to think otherwise. From my short interaction there, I now think that comparison operators are indeed hard to use, and that the

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread David Lyon
On Mon, 28 Dec 2009 23:07:32 +, Michael Foord fuzzy...@voidspace.org.uk wrote: Requires-Python: 2.5:2.7 Specifies a range of python versions. So this would work for Python 2.7 but *not* 2.7.1? Or does 2.7 implicitly mean a range of all Python 2.7 versions? Yes. 2.7 would mean

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Antoine Pitrou
David Lyon david.lyon at preisshare.net writes: Requires a particular python version. Requires-Python: 2.5:2.7 Why not drop ranges as well as operators and simply use commas? The above would be rewritten as: Requires-Python: 2.5, 2.6, 2.7 This would prevent the ambiguity on the

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread MRAB
Antoine Pitrou wrote: David Lyon david.lyon at preisshare.net writes: Requires a particular python version. Requires-Python: 2.5:2.7 Why not drop ranges as well as operators and simply use commas? The above would be rewritten as: Requires-Python: 2.5, 2.6, 2.7 This would prevent the

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread R. David Murray
On Mon, 28 Dec 2009 23:21:54 +, Antoine Pitrou solip...@pitrou.net wrote: David Lyon david.lyon at preisshare.net writes: Requires a particular python version. Requires-Python: 2.5:2.7 Why not drop ranges as well as operators and simply use commas? The above would be

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Antoine Pitrou
R. David Murray rdmurray at bitdance.com writes: Why not drop ranges as well as operators and simply use commas? The above would be rewritten as: Requires-Python: 2.5, 2.6, 2.7 This would prevent the ambiguity on the inclusive or exclusive nature of the upper bound of the

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread David Lyon
On Mon, 28 Dec 2009 23:21:54 + (UTC), Antoine Pitrou solip...@pitrou.net wrote: Requires-Python: 2.5:2.7 Why not drop ranges as well as operators and simply use commas? The above would be rewritten as: Requires-Python: 2.5, 2.6, 2.7 Firstly, I find your notation proposition to be

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread David Lyon
On Mon, 28 Dec 2009 18:55:17 -0500, R. David Murray rdmur...@bitdance.com wrote: What about specifying that the package works only with, say, 2.6.2 or earlier (because of some problem introduced by 2.6.3)? That could get pretty darn verbose. (Also remember we aren't just talking about the

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Ben Finney
David Lyon david.l...@preisshare.net writes: The counter argument for 'cloning' the linux packaging system is that most of the representations come from a C perspective. Because of the fact that Linux is predominantly a C product. Since Python isn't C, and doesn't come from C, then one could

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Tarek Ziadé
On Mon, Dec 28, 2009 at 9:26 PM, Tres Seaver tsea...@palladion.com wrote: [..] Requires-Dist: zope.interface (3.1.0)   == only 3.1.0 For completeness, isn't this really any versino which starts with 3.1.0, not including post- or pre- releases?  That particular pacakge doesn't use more than a

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread sstein...@gmail.com
On Dec 28, 2009, at 8:00 PM, Ben Finney wrote: The dependency declarations are *not* Python language syntax, and there is no need to consider Python language syntax in defining them. Agreed. We're also not going to be writing an operating system with them; just simple version range

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Larry Hastings
David Lyon wrote: On Mon, 28 Dec 2009 23:07:32 +, Michael Foord fuzzy...@voidspace.org.uk wrote: Requires-Python: 2.5:2.7 Specifies a range of python versions. So this would work for Python 2.7 but *not* 2.7.1? Or does 2.7 implicitly mean a range of all Python 2.7

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Tarek Ziadé
On Tue, Dec 29, 2009 at 2:17 AM, sstein...@gmail.com sstein...@gmail.com wrote: On Dec 28, 2009, at 8:00 PM, Ben Finney wrote: The dependency declarations are *not* Python language syntax, and there is no need to consider Python language syntax in defining them. Agreed. We're also not

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread sstein...@gmail.com
On Dec 28, 2009, at 8:35 PM, Tarek Ziadé wrote: On Tue, Dec 29, 2009 at 2:17 AM, sstein...@gmail.com sstein...@gmail.com wrote: On Dec 28, 2009, at 8:00 PM, Ben Finney wrote: The dependency declarations are *not* Python language syntax, and there is no need to consider Python language

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread Ben Finney
Tarek Ziadé ziade.ta...@gmail.com writes: I am now rewriting the relevant section of the PEP with the examples we discussed in this thread, but the operators should stay the same as they were initially: , , =, =, == and !=. Thank you, this is the clear and simple path and keeps the dependency

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-28 Thread David Lyon
On Tue, 29 Dec 2009 12:00:50 +1100, Ben Finney ben+pyt...@benfinney.id.au wrote: The dependency declarations are *not* Python language syntax, and there is no need to consider Python language syntax in defining them. Well I don't know how you can say that if it is python developers to which

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Tarek Ziadé
On Fri, Dec 25, 2009 at 8:33 AM, Nick Coghlan ncogh...@gmail.com wrote: Martin v. Löwis wrote: I'll remove it and push it in Distutils documentation, then might just provide a link in the PEP References. That sounds fine to me. That would address my questions as well - someone looking for a

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread david . lyon
On Fri, Dec 25, 2009 at 8:33 AM, Nick Coghlan ncogh...@gmail.com wrote: Martin v. Löwis wrote: FYI we have introduced a range operator, so one may define a range of versions. This is useful for instance to write: Requires-Python: ~=2.5 Which means: requires any version of Python 2.5.x.

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Tarek Ziadé
On Mon, Dec 28, 2009 at 1:15 AM, david.l...@preisshare.net wrote: On Fri, Dec 25, 2009 at 8:33 AM, Nick Coghlan ncogh...@gmail.com wrote: Martin v. Löwis wrote: FYI we have introduced a range operator, so one may define a range of versions. This is useful for instance to write:  

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Sridhar Ratnakumar
On 12/27/2009 4:15 PM, david.l...@preisshare.net wrote: On Fri, Dec 25, 2009 at 8:33 AM, Nick Coghlanncogh...@gmail.com wrote: Martin v. Löwis wrote: FYI we have introduced a range operator, so one may define a range of versions. This is useful for instance to write:

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Antoine Pitrou
Tarek Ziadé ziade.tarek at gmail.com writes: This was ambiguous because it was unclear, as MvL stated, if 2.5 was just 2.5.0 or included versions like 2.5.1 or 2.5.2. How about having 2.5 match all 2.5.x versions, and 2.5.0 match only 2.5 itself? (ditto for 2.5.N matching only 2.5.N for N =

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Tarek Ziadé
On Mon, Dec 28, 2009 at 1:41 AM, Sridhar Ratnakumar sridh...@activestate.com wrote: [..] Tarek, I am a bit confused at the current proposal combined with the newly introduced range operator. Would Requires-Python: =2.5 include 2.5.4 or not? =2.5 means any version that is inferior or equal

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Martin v. Löwis
No application developer will quickly figure out what a tilde means. Maybe it means 'roughly', but it requires too much thought and is ambiguous. 2.5 is not roughly 2.5.2. It is the same exactly. Before we had : Requires-Python: 2.5, 2.6 That made much more sense. It was simple and

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Tarek Ziadé
On Mon, Dec 28, 2009 at 1:48 AM, Antoine Pitrou solip...@pitrou.net wrote: Tarek Ziadé ziade.tarek at gmail.com writes: This was ambiguous because it was unclear, as MvL stated,  if 2.5 was just 2.5.0 or included versions like 2.5.1 or 2.5.2. How about having 2.5 match all 2.5.x versions,

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Ben Finney
Tarek Ziadé ziade.ta...@gmail.com writes: FYI we have introduced a range operator, so one may define a range of versions. This is useful for instance to write: Requires-Python: ~=2.5 Which means: requires any version of Python 2.5.x. -1 on that syntax. It's an extra operator, with a

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Martin v. Löwis
Tarek Ziadé wrote: On Mon, Dec 28, 2009 at 1:48 AM, Antoine Pitrou solip...@pitrou.net wrote: Tarek Ziadé ziade.tarek at gmail.com writes: This was ambiguous because it was unclear, as MvL stated, if 2.5 was just 2.5.0 or included versions like 2.5.1 or 2.5.2. How about having 2.5 match all

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Ben Finney
Tarek Ziadé ziade.ta...@gmail.com writes: On Mon, Dec 28, 2009 at 1:41 AM, Sridhar Ratnakumar sridh...@activestate.com wrote: Also, Requires-Python: 3 would include all 3.X versions, correct? Correct, because, Requires-Python: 3 is equivalent to Requires-Python: ~= 3 which is equivalent to

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread MRAB
Tarek Ziadé wrote: On Mon, Dec 28, 2009 at 1:41 AM, Sridhar Ratnakumar sridh...@activestate.com wrote: [..] Tarek, I am a bit confused at the current proposal combined with the newly introduced range operator. Would Requires-Python: =2.5 include 2.5.4 or not? =2.5 means any version that is

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Arfrever Frehtes Taifersar Arahesis
2009-12-28 02:17:22 Ben Finney napisał(a): Tarek Ziadé ziade.ta...@gmail.com writes: On Mon, Dec 28, 2009 at 1:41 AM, Sridhar Ratnakumar sridh...@activestate.com wrote: Also, Requires-Python: 3 would include all 3.X versions, correct? Correct, because, Requires-Python: 3 is

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread MRAB
Ben Finney wrote: Tarek Ziadé ziade.ta...@gmail.com writes: On Mon, Dec 28, 2009 at 1:41 AM, Sridhar Ratnakumar sridh...@activestate.com wrote: Also, Requires-Python: 3 would include all 3.X versions, correct? Correct, because, Requires-Python: 3 is equivalent to Requires-Python: ~= 3 which

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Fred Drake
On Sun, Dec 27, 2009 at 8:28 PM, Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com wrote: 'Requires-Python: 3*' (or '3.*') would be better than 'Requires-Python: =3, 4'. Maybe. MRAB wrote: Requires-Python: 3 ~ 4 Ugh. -1 -Fred -- Fred L. Drake, Jr.fdrake at gmail.com

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread sstein...@gmail.com
On Dec 27, 2009, at 8:02 PM, Tarek Ziadé wrote: On Mon, Dec 28, 2009 at 1:48 AM, Antoine Pitrou solip...@pitrou.net wrote: Tarek Ziadé ziade.tarek at gmail.com writes: This was ambiguous because it was unclear, as MvL stated, if 2.5 was just 2.5.0 or included versions like 2.5.1 or

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Sridhar Ratnakumar
On 12/27/2009 5:21 PM, MRAB wrote: Tarek Ziadé wrote: On Mon, Dec 28, 2009 at 1:41 AM, Sridhar Ratnakumar sridh...@activestate.com wrote: [..] Tarek, I am a bit confused at the current proposal combined with the newly introduced range operator. Would Requires-Python: =2.5 include 2.5.4 or

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread MRAB
Martin v. Löwis wrote: No application developer will quickly figure out what a tilde means. Maybe it means 'roughly', but it requires too much thought and is ambiguous. 2.5 is not roughly 2.5.2. It is the same exactly. Before we had : Requires-Python: 2.5, 2.6 That made much more sense. It was

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread MRAB
Arfrever Frehtes Taifersar Arahesis wrote: 2009-12-28 02:17:22 Ben Finney napisał(a): Tarek Ziadé ziade.ta...@gmail.com writes: On Mon, Dec 28, 2009 at 1:41 AM, Sridhar Ratnakumar sridh...@activestate.com wrote: Also, Requires-Python: 3 would include all 3.X versions, correct? Correct,

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Stephen J. Turnbull
Ben Finney writes: Instead, the default should be `=='. That is, `Requires-Python: 3' should be equivalent to `Requires-Python: ==3'; and only 3 or 3.0 or 3.0.0 etc. will match. I maintain that is what most people will expect on seeing that syntax. I really don't think your assessment

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread david . lyon
No application developer will quickly figure out what a tilde means. Maybe it means 'roughly', but it requires too much thought and is ambiguous. 2.5 is not roughly 2.5.2. It is the same exactly. Before we had : Requires-Python: 2.5, 2.6 That made much more sense. It was simple and

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread david . lyon
Instead, the default should be ‘==’. That is, ‘Requires-Python: 3’ should be equivalent to ‘Requires-Python: ==3’; and only “3” or “3.0” or “3.0.0” etc. will match. I maintain that is what most people will expect on seeing that syntax. If a less strict range is

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Terry Reedy
On 12/27/2009 7:48 PM, Antoine Pitrou wrote: Tarek Ziadéziade.tarekat gmail.com writes: This was ambiguous because it was unclear, as MvL stated, if 2.5 was just 2.5.0 or included versions like 2.5.1 or 2.5.2. How about having 2.5 match all 2.5.x versions, and 2.5.0 match only 2.5 itself?

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread david . lyon
Tarek Ziadé ziade.tarek at gmail.com writes: An implicit range operator is simpler indeed, and achieves the same goal. Meaning that =2.5 for example, will be translated to =2.5.x as well. With respect, it's not a very common use case for a developer to say that package needs a python

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Terry Reedy wrote: On 12/27/2009 7:48 PM, Antoine Pitrou wrote: Tarek Ziadéziade.tarekat gmail.com writes: This was ambiguous because it was unclear, as MvL stated, if 2.5 was just 2.5.0 or included versions like 2.5.1 or 2.5.2. How about

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Stephen J. Turnbull
david.l...@preisshare.net writes: Before we had : Requires-Python: 2.5, 2.6 That made much more sense. It was simple and unambiguous, and is relevant to typical packaging scenarios. Unfortunately, it is fairly ambiguous, and makes no sense. It means requires Python 2.5 *AND*

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Tarek Ziadé wrote: On Mon, Dec 28, 2009 at 1:41 AM, Sridhar Ratnakumar sridh...@activestate.com wrote: [..] Tarek, I am a bit confused at the current proposal combined with the newly introduced range operator. Would Requires-Python: =2.5

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Lennart Regebro
On Mon, Dec 28, 2009 at 05:37, Terry Reedy tjre...@udel.edu wrote: If the first x.y release were called x.y.0, (does not sys.version include 0?) then x.y would unambiguously mean the series. Yeah, well, although sys.version includes the zero, nothing else does. The first releases are called

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Stephen J. Turnbull
david.l...@preisshare.net writes: With respect, it's not a very common use case for a developer to say that package needs a python interpretor 'older' than 2.5. Of course it is. I don't claim it is the majority of cases out there, but stable versions of many of the packages I use will

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread Antoine Pitrou
And in fact this case is often more the important one. Packages that depend on having a *recent* version of python will often crash quickly, before doing permanent damage, when an undefined syntax, function, or method is invoked, while packages that depend on a quirk in behavior of an older

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-27 Thread david . lyon
david.l...@preisshare.net writes: With respect, it's not a very common use case for a developer to say that package needs a python interpretor 'older' than 2.5. Of course it is. I don't claim it is the majority of cases out there, but stable versions of many of the packages I use will

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-24 Thread Martin v. Löwis
As an application developer, I really stand with Tarek here. Not sure what specific point of Tarek you are supporting, though. I think we want something stronger than that since they were not really used by the community and removed and replaced by something better. Using them should raise

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-24 Thread Martin v. Löwis
David Lyon wrote: On Thu, 24 Dec 2009 10:31:09 +0900, Stephen J. Turnbull step...@xemacs.org wrote: Martin's point is that the PEP process doesn't *have* reference implementations. It has *sample* implementations. It may be useful to refer to a sample implementation as an example..

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-24 Thread Tarek Ziadé
2009/12/23 Martin v. Löwis mar...@v.loewis.de: So that will happen in the code of course, but we need the PEP to state clearly wether metadata 1.0 and 1.1 should be dropped by implementations or not. Ok. We should recommend that implementations support these versions indefinitely. I see no

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-24 Thread Tarek Ziadé
On Thu, Dec 24, 2009 at 10:26 AM, Martin v. Löwis mar...@v.loewis.de wrote: David Lyon wrote: On Thu, 24 Dec 2009 10:31:09 +0900, Stephen J. Turnbull step...@xemacs.org wrote: Martin's point is that the PEP process doesn't *have* reference implementations.  It has *sample* implementations.  

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-24 Thread Martin v. Löwis
I'll remove it and push it in Distutils documentation, then might just provide a link in the PEP References. That sounds fine to me. Regards, Martin ___ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-24 Thread Nick Coghlan
Martin v. Löwis wrote: I'll remove it and push it in Distutils documentation, then might just provide a link in the PEP References. That sounds fine to me. That would address my questions as well - someone looking for a guide on how they should deal with different versions of the metadata on

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-23 Thread Tarek Ziadé
On Wed, Dec 23, 2009 at 3:31 AM, Tres Seaver tsea...@palladion.com wrote: [..] The deprecation of the existing Requires/Provides/Obsoletes fields should be more prominent - tucked away below the examples, I missed these notices on the first read through (I only noticed that they actually had

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-23 Thread Tarek Ziadé
On Wed, Dec 23, 2009 at 11:18 AM, Tarek Ziadé ziade.ta...@gmail.com wrote: [..] if a 1.2 field is found and no 1.1 field is found:    metadata 1.2 is used if a 1.1 field is found and no 1.2 field is found:    metadata 1.1 is used + a warning is displayed if a 1.1 field is found and a 1.2

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-23 Thread Martin v. Löwis
The deprecation of the existing Requires/Provides/Obsoletes fields should be more prominent - tucked away below the examples, I missed these notices on the first read through (I only noticed that they actually had been formally deprecated when I got to the summary of differences at the end).

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-23 Thread Tarek Ziadé
2009/12/23 Martin v. Löwis mar...@v.loewis.de: The deprecation of the existing Requires/Provides/Obsoletes fields should be more prominent - tucked away below the examples, I missed these notices on the first read through (I only noticed that they actually had been formally deprecated when I

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-23 Thread Martin v. Löwis
I think we want something stronger than that since they were not really used by the community and removed and replaced by something better. Using them should raise a warning so developers abandon them, so it would be don't use 1.1 anymore I think you are mixing the distutils implementation

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-23 Thread Tarek Ziadé
2009/12/23 Martin v. Löwis mar...@v.loewis.de: I think we want something stronger than that since they were not really used by the community and removed and replaced by something better. Using them should raise a warning so developers abandon them, so it would be don't use 1.1 anymore I

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-23 Thread Martin v. Löwis
So that will happen in the code of course, but we need the PEP to state clearly wether metadata 1.0 and 1.1 should be dropped by implementations or not. Ok. We should recommend that implementations support these versions indefinitely. I see no point in dropping them. But then, this is really

Re: [Python-Dev] Proposing PEP 345 : Metadata for Python Software Packages 1.2

2009-12-23 Thread David Lyon
Martin, As an application developer, I really stand with Tarek here. On Wed, 23 Dec 2009 20:07:30 +0100, Tarek Ziadé ziade.ta...@gmail.com wrote: 2009/12/23 Martin v. Löwis mar...@v.loewis.de: I think we want something stronger than that since they were not really used by the community and

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