classes was called with three arguments. This makes no sense, there's
no way to pass in the "modulo" 3rd argument as for __pow__, and
classic classes don't do this. [SF bug 620179]
I don't want to backport this to 2.2.2, because it could break
existing code that has developed a work-around. Code in 2.2.2 that
wants to use __ipow__ and wants to be forward compatible with 2.3
should be written like this:
def __ipow__(self, exponent, modulo=None):
...
Ben. If s is a byte string, make sure it can be converted to unicode
with the input codec, and from unicode with the output codec, or raise
a UnicodeError exception early. Skip this test (and the unicode->byte
string conversion) when the charset is our faux 8bit raw charset.
must be a Charset instance, not a string. The bug here was that
self._charset wasn't being converted to a Charset instance so later
.append() calls which used the default charset would break.
_split(): If the charset of the chunk is '8bit', return the chunk
unchanged. We can't safely split it, so this is the avenue of least
harm.
8-bit data, we cannot split it safely, so return the original string
unchanged.
_is8bitstring(): Helper function which returns True when we have a
byte string that contains non-ascii characters (i.e. mysterious 8-bit
data).
Also, it fixes a really egregious error in Header.encode() (really
in Header._encode_chunks()) that could cause a header to grow and
grow each time encode() was called if output_codec was different
from input_codec.
Also, fix a typo.
macros. The 'op' argument is then the result from PyObject_MALLOC,
and that can of course be NULL. In that case, PyObject_Init[Var]
would raise a SystemError with "NULL object passed to
PyObject_Init[Var]". But there's nothing the caller of the macro can
do about this. So PyObject_Init[Var] should call just PyErr_NoMemory.
Will backport.
'%2147483647d' % -123 segfaults. This was because an integer overflow
in a comparison caused the string resize to be skipped. After fixing
the overflow, this could call _PyString_Resize() with a negative size,
so I (1) test for that and raise MemoryError instead; (2) also added a
test for negative newsize to _PyString_Resize(), raising SystemError
as for all bad arguments.
An identical bug existed in unicodeobject.c, of course.
Will backport to 2.2.2.
