-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I haven't found any docs (outside the code) for the setuptools.dist.Feature, or for how it operates with the rest of the ecosystem. Can somebody confirm or correct my understanding of them?
- - Feature instances represent optionally-included bits of the distribution. - - Normally, features are disabled by default, and can be enabled by passing '--with-<featurename>' to setup.py. - - Features declared as 'standard' are enabled by default, and can be disabled by passing '--without-<featurename>' to setup.py. - - Features have an 'available' attribute, which can be set to False in setup.py to disable a feature based on runtime introspection (e.g., using sys.version_info or os.name). - - It appears that it should be possible to pass an instance with a '__nonzero__' method as the 'available': the code seems only to use it in boolean tests. - - Features may depend on (force inclusion of) other features. - - Enabled features do their actual work by adding **kwargs to the args passed directly to setup.py - - Distributions created via an invocation to setup.py are not labeled in any way to indicate any '--with-<featurename>' (or '--without') passed to setup.py during their creation. - - There is no way to enable / disable a feature when installing a distribution via easy_install. The particular use case which led me to investigate Features was easing packaging of projects with optional C extensions, such that they could be installable on Jython, IronPython, Windows, or GAE. It doesn't seem possible to figure out whether a compiler actually exists: jython's distutils lies and creates a compiler which raises exceptions, for instance. Tres. - -- =================================================================== Tres Seaver +1 540-429-0999 [email protected] Palladion Software "Excellence by Design" http://palladion.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkwuL/oACgkQ+gerLs4ltQ6gSACdHkbS6vic9+/ovRutN9c5Rue3 QBcAn176C4btyAU4j2AGlMsupviUxsTI =KAKk -----END PGP SIGNATURE----- _______________________________________________ Distutils-SIG maillist - [email protected] http://mail.python.org/mailman/listinfo/distutils-sig
