On Thu, Dec 30, 2010 at 11:38:47AM +0100, Piotr Ozarowski wrote:
CDBS currently by default build for all variants of Python available
at build time. It is then the responsibility of the package
even if we will change pyversions to parse Build-Depends, please try to
build for all interpreters returned by `pyversions -r`, do not limit it
to the ones installed, it's much better to FTBFS if given interpreter
is missing than to build with missing extensions
Please document *independently* of high-level helper tools the best
practice of Python packaging. Then point us developers of high-level
packaging helper tools to that documentation, and let's work from there.
CDBS provides helper tools for packaging, not (if we can avoid it)
band-aid for lack of sensible logic in underlying build
infrastructures.
but there's *is* a logic: build depend on python or python-dev or
pythonX.Y-dev if you want to build for one Python version only and
build depend on python-all/python-all-dev if you want to support more
than one Python version (i.e. your package provides public module)
Where is that logic documented?
If you mean that CDBS python snippets has a logic, then *no* - don't
lean on that: The hacks applied to the CDBS puthon*.mk snippets back in
2006 as part of the transition to Python policy 2 was a disaster that I
am still trying to both understand and to adjust for.
I sugest you resolve Python build systems issues internally among the
build infrastructures python-central python-support and
python-default, and then tell us package helper folks what you came
up with which we can then support from a higher altitude.
as noted before, dh_py* helper tools know how to deal with this
situation, the only problem is with cdbs/dh → pyversions. We can either
fix it in CDBS/dh or in pyversions (if both CDBS and dh will try to
build for all `pyversions -rv` versions and not only for `pyversions
-riv` or `pyversions -iv` ones)
Great that dh_py* tools are good. Now please document independently of
high-level packaging tools (like CDBS and short-form dh) how this
goodness is intended to be used, and point us to that documentation.
- Jonas
--
* Jonas Smedegaard - idealist Internet-arkitekt
* Tlf.: +45 40843136 Website: http://dr.jones.dk/
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