Disable the ZEROTRAP code -- this turns a 0 byte into a 2 byte and I
don't think that's what we want. There was some brief discussion
of this somewhere but I don't recall where.
Barry Warsaw [Tue, 2 May 2000 19:27:51 +0000 (19:27 +0000)]
PyErr_GivenExceptionMatches(): Check for err==NULL and exc==NULL and
return 0 (exceptions don't match). This means that if an ImportError
is raised because exceptions.py can't be imported, the interpreter
will exit "cleanly" with an error message instead of just core
dumping.
PyErr_SetFromErrnoWithFilename(), PyErr_SetFromWindowsErrWithFilename():
Don't test on Py_UseClassExceptionsFlag.
Barry Warsaw [Tue, 2 May 2000 19:24:06 +0000 (19:24 +0000)]
initerrors(): Remove this function. String-based standard exceptions
are no longer supported (i.e. -X option is removed).
_PyBuiltin_Init_1(): Don't call initerrors(). This does mean that it
is possible to raise an ImportError before that exception has been
initialized, say because exceptions.py can't be found, or contains
bogosity. See changes to errors.c for how this is handled.
_PyBuiltin_Init_2(): Don't test Py_UseClassExceptionsFlag, just go
ahead and initialize the class-based standard exceptions. If this
fails, we throw a Py_FatalError.
At last, this backward compatibility file bites the dust.
If you still haven't updated your extension since the Grand Renaming,
you don't deserve Python 1.6. :-)
I know this is only a temporary stop-gap measure, but the match() and
search() functions didn't even work because _fixflags() isn't
idempotent. I'm adding another stop-gap measure so that you can at
least use sre.search() and sre.match() with a zero flags arg.
telnetlib is unable to connect to a few telnet daemons because of
improper IAC handling, heres an attached oneliner to reject WILL
messages which will allow many more telnet daemons to work with it,
namely FreeBSD.
Changed all references to the MAGIC constant to use a global
pyc_magic instead. This global is initially set to MAGIC, but can be
changed by the _PyImport_Init() function to provide for
special features implemented in the compiler which are settable
using command line switches and affect the way PYC files are
generated.
Currently this change is only done for the -U flag.
(1) Added and documented the capability for shlex to handle
lexical-level inclusion and a stack of input sources. Also, the input
stream member is now documented, and the constructor takes an optional
source-filename. The class provides facilities to generate error
messages that track file and line number.
(2) Add a convenience function to generate C-compiler style error
leaders.
Added and documented the capability for shlex to handle lexical-level
inclusion and a stack of input sources. Also, the input stream member
is now documented, and the constructor takes an optional source-filename.
The class provides facilities to generate error messages that track
file and line number.
[GvR: I changed the __main__ code so that it actually stops at EOF, as
Eric surely intended -- however it returned '' instead of the None he
was testing for.]
Support for the new -U command line option option:
with the option enabled the Python compiler
interprets all "..." strings as u"..." (same with r"..." and
ur"...").
Robin Becker: The following patch seems to fix a module case bug in
1.6a2 caused by wrong return values in routine allcaps83. [GvR: I
also changed the case for end-s>8 to return 0.]
Barry Warsaw [Mon, 1 May 2000 16:18:22 +0000 (16:18 +0000)]
Document the new additional signature for utime(). In addition to the
previous functionality utime(path, (atime, mtime)), now allowed is
utime(path, None) which sets the file's times to the current time.
Barry Warsaw [Mon, 1 May 2000 16:17:24 +0000 (16:17 +0000)]
posix_utime(): Allow the second argument to be None, which invokes the
utime(path, NULL) call, setting the atime and mtime of the file to the
current time. The previous signature utime(path, (atime, mtime)) is
of course still allowed.
Follow a suggestion in an /*XXX*/ comment [in com_add()] to speed up
compilation by using supplemental dictionaries to keep track of names
and constants, eliminating quadratic behavior. With this patch in
place, the time to import a 5000-line file with lots of constants [at
the global level] is reduced from 20 seconds to under 3 on my system.
Fred Drake [Fri, 28 Apr 2000 14:42:37 +0000 (14:42 +0000)]
Brian Hooper <brian_takashi@hotmail.com>:
Here's a patch which changes modsupport to add 'u' and 'u#',
to support building Unicode objects from a null-terminated
Py_UNICODE *, and a Py_UNICODE * with length, respectively.
[Conversion from 'U' to 'u' by Fred, based on python-dev comments.]
Note that the use of None for NULL values of the Py_UNICODE* value is
still in; I'm not sure of the conclusion on that issue.
Mark Hammond: For Windows debug builds, we now only offer to dump
remaining object references if the environment variable PYTHONDUMPREFS
exists. The default behaviour caused problems for background or
otherwise invisible processes that use the debug build of Python.
Fixed a memory leak found by Fredrik Lundh. Instead of
PyUnicode_AsUTF8String() we now use _PyUnicode_AsUTF8String() which
returns the string object without incremented refcount (and assures
that the so obtained object remains alive until the Unicode object is
garbage collected).
Added the "--root" option as a sort of meta-install-base; if supplied,
it is forcibly prepended onto all installation directories, even if
they are already absolute.
Added 'dump_dirs()' to clean up the debug output a bit.
Added 'change_root()' to forcibly slap a new root directory onto a pathname,
even if it's already absolute. Currently only implemented for Unix; I'm
not entirely sure of the right thing to do for DOS/Windows, and have no
clue what to do for Mac OS.
This patch is a workaround for Macintosh, where the GUSI I/O library
(time, stat, etc) use the MacOS epoch of 1-Jan-1904 and the MSL C
library (ctime, localtime, etc) uses the (apparently ANSI standard)
epoch of 1-Jan-1900. Python programs see the MacOS epoch and we
convert values when needed.
Jeremy Hylton [Wed, 26 Apr 2000 20:39:20 +0000 (20:39 +0000)]
potentially useless optimization
The previous checkin (2.84) added a PyErr_Format call that made the
cost of raising an AttributeError much more expensive. In general
this doesn't matter, except that checks for __init__ and
__del__ methods, where exceptions are caught and cleared in C, also
got much more expensive.
The fix is to split instance_getattr1 into two calls:
instance_getattr2 checks the instance and the class for the attribute
and returns it or returns NULL on error. It does not raise an
exception.
instance_getattr1 does rexec checks, then calls instance_getattr2. It
raises an exception if instance_getattr2 returns NULL.
PyInstance_New and instance_dealloc now call instance_getattr2
directly.
a) check for zero length args (does this to execve, too), raising
ValueError.
b) raises more rational exceptions for various flavours of duff arguments.
I *hate*
TypeError: "illegal argument type for built-in operation"
It has to be one of the most frustrating error messages ever.
Michael Hudson fixes a case where execv() is called (for a test) with
an empty argument list -- another patch he's checking in will make
this illegal (the first argument should always be the program name).
Hacked things up a bit so that configuration variables are expanded
in command-line options, and in two phases at that: first, we expand
'install_base' and 'install_platbase', and then the other 'install_*'
options. This lets us do tricky stuff like
install --prefix='/tmp$sys_prefix'
...oooh, neat.
Simplified 'select_scheme()' -- it's no longer responsible for expanding
config vars, tildes, etc.
Define installation-specific config vars in 'self.config_vars', rather than
in a local dictionary of one method. Also factored '_expand_attrs()' out
of 'expand_dirs()' and added 'expand_basedirs()'.
Added a bunch of debugging output so I (and others) can judge the
success of this crazy scheme through direct feedback.
Patch inspired by Just van Rossum: on the Mac, in savefilename(), make
the path to save a relative path by prefixing it with os.sep (':').
Also fix an indent inconsistency in the same function.
Mark Hammond: Added dependency of winsound project on python16
project. [However I didn't add the other changes in his patch, which
were just taking away the source code control stuff -- this doesn't
hurt and would come back as soon as I make another change. --GvR]
Harry Henry Gebel:
Adds bztar format to generate .tar.bz2 tarballs
Uses the -f argument to overright old tarballs automatically, I am
assuming that if the old tarball was wanted it would have been moved or
else the version number would have been changed.
Uses the -9 argument to bzip2 and gzip to use maximum
compression. Compress uses the maximum compression by default.
Tests for correct value for the 'compress' argument of make_tarball. This
is one less place for someone adding new compression programs to forget to
change.
Christian Tismer -- total rewrite on trashcan code.
Improvements:
- does no longer need any extra memory
- has no relationship to tstate
- works in debug mode
- can easily be modified for free threading (hi Greg:)
Side effects:
Trashcan does change the order of object destruction.
Prevending that would be quite an immense effort, as
my attempts have shown. This version works always
the same, with debug mode or not. The slightly
changed destruction order should therefore be no problem.
Algorithm:
While the old idea of delaying the destruction of some
obejcts at a certain recursion level was kept, we now
no longer aloocate an object to hold these objects.
The delayed objects are instead chained together
via their ob_type field. The type is encoded via
ob_refcnt. When it comes to the destruction of the
chain of waiting objects, the topmost object is popped
off the chain and revived with type and refcount 1,
then it gets a normal Py_DECREF.
I am confident that this solution is near optimum
for minimizing side effects and code bloat.
Jack Jansen: The GUSI 2.0 I/O library used on the Mac uses the
socklen_t (unsigned int) for most size parameters. Apparently this is
part of the UNIX 98 standard.
[GvR: the changes to configure.in etc. that I just checked in make
sure that socklen_t is defined everywhere, so I deleted the little
part of Jack's mod to define socklen_t if not in GUSI2. I suppose I
will have to add it to the Windows config.h in a minute.]
Added a provision to stop all threads before exiting from the test:
the change to regrtest.py to unload all newly imported modules did
something bad to the threads -- and I realized that they would never
stop!
This uses the same precautions when trying to find a temporary
directory as when the actual tempfile is created (using O_CREAT and
O_EXCL). On non-posix platforms, nothing is changed.
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