Convert the Python framework bits to USES=python.

Please use USES=python instead of USE_PYTHON.

  USE_PYTHON=yes becomes USES=python
  USE_PYTHON=2.7+ becomes USES=python:2.7+
  USE_PYTHON_BUILD=3.3 becomes USES=python:3.3,build
  ...

A new PYTHON_FEATURES variable was added, which enables certain features for a
port and replaces some knobs at the same time;

  PYTHON_FEATURES=distutils replaces USE_PYDISTUTILS
  PYTHON_FEATURES=autoplist replaces PYDISTUTILS_AUTOPLIST
  PYTHON_FEATURES=py3kplist replaces PYTHON_PY3K_PLIST_HACK
  PYTHON_FEATURES=noegginfo replaces PYDISTUTILS_NOEGGINFO
  PYTHON_FEATURES=concurrent replaces PYTHON_CONCURRENT_INSTALL
  PYTHON_FEATURES=pythonprefix replaces USE_PYTHON_PREFIX

Some knobs have been deprecated and are to be removed in the near future:

  PYTHON_MASTER_SITES - use MASTER_SITE_PYTHON instead
  PYTHON_PKGNAMESUFFIX - use PYTHON_PKGNAMEPREFIX instead
  PYDISTUTILS_INSTALLNOSINGLE - deprecated without replacement

Some knobs have been removed completely:

  PYTHON_MASTER_SITE_SUBDIR
  PYTHON_DISTNAME
  PYTHON_WRKSRC

Several variables specific to the Python framework are no longer passed to the
build environment to avoid polluting dependency builds.

  PYTHON_VERSION is not passed to .MAKEFLAGS anymore
  PYTHON_DEFAULT_VERSION,
  PYTHON_DEFAULT_PORTVERSION and
  PYTHONBASE are not passed to the make environment anymore

The conversion required a couple of ports to be updated to fit the changes and
new requirements. Those included "bsd.python.mk" directly or contained checks
in places, for which the USES framework would fail to provide correct values.

Python modules directly using the upstream Python package (such as py-tkinter
or py-sqlite3) were updated to avoid using the now unnecessary and remmoved
knobs from "bsd.python.mk".

Phabric:	D399
exp-run:	167368 192357
PR:		167368 192357
Reviewed by:	antoine, wg
Exp-run award:	antoine
With hat:	python@
Approved by:	portmgr

1 files changed, 23 insertions, 0 deletions

diff --git a/CHANGES b/CHANGES
index c363551a70b..43e177c30ff 100644
--- a/CHANGES
+++ b/CHANGES
@@ -10,6 +10,29 @@ in the release notes and/or placed into UPDATING.
 
 All ports committers are allowed to commit to this file.
 
+20140809:
+AUTHOR: mva@FreeBSD.org
+
+  The Python language bits of the poorts framework have been converted
+  to USES. Instead of USE_PYTHON, please use USES=python instead.
+
+    USE_PYTHON=yes becomes USES=python
+    USE_PYTHON=2.7+ becomes USES=python:2.7+
+    USE_PYTHON_BUILD=3.3 becomes USES=python:3.3,build
+    ...
+
+  Additionally, several Python specific feeatures have been converted
+  to USES-inspired PYTHON_FEATURES=<featureA>,<featureB>.
+
+    USE_PYDISTUTILS becomes PYTHON_FEATURES=distutils
+    PYDISTUTILS_AUTOPLIST becomes PYTHON_FEATURES=autoplist
+    ...
+
+  Please read the header comments of Uses/python.mk for more details
+  about the new and changed bits and pieces. You will find a list of
+  deprecated variables and how to replace them in your own ports at
+  the end of the header comment.
+
 20140715:
 AUTHOR: bapt@FreeBSD.org