during interpreter shutdown instead of masking it with another traceback about
accessing a NoneType when trying to print the exception out in the first place.
Closes bug #754449 (using patch #954922).
- weakref.ref and weakref.ReferenceType will become aliases for each
other
- weakref.ref will be a modern, new-style class with proper __new__
and __init__ methods
- weakref.WeakValueDictionary will have a lighter memory footprint,
using a new weakref.ref subclass to associate the key with the
value, allowing us to have only a single object of overhead for each
dictionary entry (currently, there are 3 objects of overhead per
entry: a weakref to the value, a weakref to the dictionary, and a
function object used as a weakref callback; the weakref to the
dictionary could be avoided without this change)
- a new macro, PyWeakref_CheckRefExact(), will be added
- PyWeakref_CheckRef() will check for subclasses of weakref.ref
This closes SF patch #983019.
The builtin eval() function now accepts any mapping for the locals argument.
Time sensitive steps guarded by PyDict_CheckExact() to keep from slowing
down the normal case. My timings so no measurable impact.
[ 924301 ] A leak case with cmd.py & readline & exception
by ensuring that the readline completion function is always reset
even in the case of an exception being raised. As a bonus, this
makes the documentation for pre & postloop accurate again.
Fix memory leaks revealed by valgrind and ensuing code inspection.
In the existing test suite valgrind revealed two memory leaks (DB_get
and DBC_set_range). Code inspection revealed that there were many other
potential similar leaks (many on odd code error paths such as passing
something other than a DBTxn object for a txn= parameter or in the face
of an out of memory error). The most common case that would cause a
leak was when using recno or queue format databases with integer keys,
sometimes only with an exception exit.
opening the DB to implement legacy interface flag='n' support as
BerkeleyDB 4.2.52 no longer allows it in transaction protected
environments. Do the os.unlink ourselves.
regrtest.py after it ran test_frozen. This test was really only
designed to be run immediately after startup. Afterwards, other
modules could be loaded when had not been fixed-up by site.py
Took the chicken way out and only tested those modules known to
be imported by site.py.
* Normalized whitespace.
New include file timefuncs.h exports private API function
_PyTime_DoubleToTimet() from timemodule.c. timemodule should export
some other functions too (look for painful bits in datetimemodule.c).
Added insane-argument checking to datetime's assorted fromtimestamp()
and utcfromtimestamp() methods. Added insane-argument tests of these
to test_datetime, and insane-argument tests for ctime(), localtime()
and gmtime() to test_time.
