From 5e5166584bb9be3297f1284c5be3fd696d18df7b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Piotr=20O=C5=BCarowski?= <piotr@debian.org>
Date: Mon, 25 Jun 2012 23:57:39 +0200
Subject: [PATCH] add support for DEBPYTHON_SUPPORTED and DEBPYTHON_DEFAULT
env. variables
can be used to override list of supported/default Python versions in Debian
---
debpython/version.py | 29 ++++++++++++++++++-----------
1 file changed, 18 insertions(+), 11 deletions(-)
diff --git a/debpython/version.py b/debpython/version.py
index 2695496..544d65d 100644
--- a/debpython/version.py
+++ b/debpython/version.py
@@ -22,6 +22,7 @@
import logging
import re
from ConfigParser import SafeConfigParser
+from os import environ
from os.path import exists, dirname, join
from types import GeneratorType
@@ -36,18 +37,24 @@ log = logging.getLogger(__name__)
# try to read debian_defaults and get a list of supported Python versions and
# the default one from there
-_config = SafeConfigParser()
-_config.read(['/usr/share/python/debian_defaults',
- join(dirname(__file__), '..', 'debian', 'debian_defaults')])
+_supported = environ.get('DEBPYTHON_SUPPORTED')
+_default = environ.get('DEBPYTHON_DEFAULT')
+if not _supported or not _default:
+ _config = SafeConfigParser()
+ _config.read(['/usr/share/python/debian_defaults',
+ join(dirname(__file__), '..', 'debian', 'debian_defaults')])
+ if not _default:
+ _default = _config.get('DEFAULT', 'default-version')[6:]
+ if not _supported:
+ _supported = _config.get('DEFAULT', 'supported-versions')\
+ .replace('python', '')
try:
- DEFAULT = tuple(int(i) for i in _config.get('DEFAULT',
- 'default-version')[6:].split('.'))
+ DEFAULT = tuple(int(i) for i in _default.split('.'))
except Exception:
log.exception('cannot read debian_defaults')
try:
- SUPPORTED = tuple(tuple(int(j) for j in i.strip()[6:].split('.'))\
- for i in _config.get('DEFAULT',
- 'supported-versions').split(','))
+ SUPPORTED = tuple(tuple(int(j) for j in i.strip().split('.'))
+ for i in _supported.split(','))
except Exception:
log.exception('cannot read debian_defaults')
@@ -83,10 +90,10 @@ def get_requested_versions(vrange=None, available=None):
versions = set(v for v in SUPPORTED if minv <= v < maxv)
if available:
- versions = set(v for v in versions \
+ versions = set(v for v in versions
if exists("/usr/bin/python%d.%d" % v))
elif available is False:
- versions = set(v for v in versions \
+ versions = set(v for v in versions
if not exists("/usr/bin/python%d.%d" % v))
return versions
@@ -190,7 +197,7 @@ def parse_pycentral_vrange(value):
minv = sorted(hardcoded)[0]
if current:
- versions = sorted(get("%s-%s" % (minv if minv else '', \
+ versions = sorted(get("%s-%s" % (minv if minv else '',
maxv if maxv else '')))
if not versions:
raise ValueError("version range doesn't match installed Python versions: %s" % value)
--
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