* [gentoo-commits] portage r12684 - main/trunk/pym/portage
@ 2009-02-22 9:56 Zac Medico (zmedico)
0 siblings, 0 replies; only message in thread
From: Zac Medico (zmedico) @ 2009-02-22 9:56 UTC (permalink / raw
To: gentoo-commits
Author: zmedico
Date: 2009-02-22 09:56:27 +0000 (Sun, 22 Feb 2009)
New Revision: 12684
Modified:
main/trunk/pym/portage/__init__.py
Log:
The python that's inside stage 1 or 2 is built with a minimal
configuration which does not include the /usr/lib/pythonX.Y/encodings
directory. This results in error like the following:
LookupError: no codec search functions registered: can't find encoding
In order to solve this problem, detect it early and manually register
a search function for the ascii codec. Starting with python-3.0 this
problem is more noticeable because of stricter handling of encoding
and decoding between strings of characters and bytes.
Modified: main/trunk/pym/portage/__init__.py
===================================================================
--- main/trunk/pym/portage/__init__.py 2009-02-22 06:00:34 UTC (rev 12683)
+++ main/trunk/pym/portage/__init__.py 2009-02-22 09:56:27 UTC (rev 12684)
@@ -7464,6 +7464,62 @@
atexit_register(portageexit)
+def _ensure_default_encoding():
+ """
+ The python that's inside stage 1 or 2 is built with a minimal
+ configuration which does not include the /usr/lib/pythonX.Y/encodings
+ directory. This results in error like the following:
+
+ LookupError: no codec search functions registered: can't find encoding
+
+ In order to solve this problem, detect it early and manually register
+ a search function for the ascii codec. Starting with python-3.0 this
+ problem is more noticeable because of stricter handling of encoding
+ and decoding between strings of characters and bytes.
+ """
+
+ import codecs
+ try:
+ codecs.lookup(sys.getdefaultencoding())
+ except LookupError:
+ pass
+ else:
+ return
+
+ class IncrementalEncoder(codecs.IncrementalEncoder):
+ def encode(self, input, final=False):
+ return codecs.ascii_encode(input, self.errors)[0]
+
+ class IncrementalDecoder(codecs.IncrementalDecoder):
+ def decode(self, input, final=False):
+ return codecs.ascii_decode(input, self.errors)[0]
+
+ class StreamWriter(codecs.StreamWriter):
+ encode = codecs.ascii_encode
+
+ class StreamReader(codecs.StreamReader):
+ decode = codecs.ascii_decode
+
+ # The sys.setdefaultencoding() function doesn't necessarily exist,
+ # so just setup the ascii codec to correspond to whatever name
+ # happens to be returned by sys.getdefaultencoding().
+ encoding = sys.getdefaultencoding()
+
+ def search_function(name):
+ if name != encoding:
+ return None
+ return codecs.CodecInfo(
+ name=encoding,
+ encode=codecs.ascii_encode,
+ decode=codecs.ascii_decode,
+ incrementalencoder=IncrementalEncoder,
+ incrementaldecoder=IncrementalDecoder,
+ streamwriter=StreamWriter,
+ streamreader=StreamReader,
+ )
+
+ codecs.register(search_function)
+
def _global_updates(trees, prev_mtimes):
"""
Perform new global updates if they exist in $PORTDIR/profiles/updates/.
@@ -7854,6 +7910,8 @@
"flushmtimedb"):
globals()[k] = _LegacyGlobalProxy(k)
+ _ensure_default_encoding()
+
# Clear the cache
dircache={}
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2009-02-22 9:56 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-02-22 9:56 [gentoo-commits] portage r12684 - main/trunk/pym/portage Zac Medico (zmedico)
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox