This is a verifier for the binary code used by the _sre module (this
is often called bytecode, though to distinguish it from Python bytecode
I put it in quotes).
I wrote this for Google App Engine, and am making the patch available as
open source under the Apache 2 license. Below are the copyright
statement and license, for completeness.
# Copyright 2008 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
It's not necessary to include these copyrights and bytecode in the
source file. Google has signed a contributor's agreement with the PSF
already.
This patch publishes the work done until now
for Python 3.0 compatibility. Still a lot
to be done.
When possible, we use 3.0 features in Python 2.6,
easing development and testing, and exposing internal
changes to a wider audience, for better test coverage.
Some mode details:
http://www.jcea.es/programacion/pybsddb.htm#bsddb3-4.7.2
was not always being done properly in some python types and extension
modules. PyMem_MALLOC, PyMem_REALLOC, PyMem_NEW and PyMem_RESIZE have
all been updated to perform better checks and places in the code that
would previously leak memory on the error path when such an allocation
failed have been fixed.
process rather than both parent and child.
Does anyone actually use fork1()? It appears to be a Solaris thing
but if Python is built with pthreads on Solaris, fork1() and fork()
should be the same.
When a thread touches such an object for the first time, a new thread-local __dict__ is created,
and the __init__ method is run.
But a thread switch can occur here; if the other thread touches the same object, it installs another
__dict__; when the first thread resumes, it updates the dictionary of the second...
This is the deep cause of the failures in test_multiprocessing involving "managers" objects.
Also a 2.5 backport candidate.
behaviours. I left the original test commented out (note
that that test came from #2702, which seems to have a
problem in FreeBSD and Windows, but not in Linux).
I included a new test, to watch over the now-broken
behaviour, I took it from #3179.
Martin v. Löwis
Brett Cannon
Antoine Pitrou
Guido van Rossum
Benjamin Peterson
Jesse Noller
Neal Norwitz
Mark Dickinson
Thomas Heller
Raymond Hettinger
Georg Brandl
Jesus Cea
Gregory P. Smith
Amaury Forgeot d'Arc
Bob Ippolito
Nick Coghlan
Alexandre Vassalotti
Robert Schuppenies
Facundo Batista
Bill Janssen