diff options
author | Tim Peters <tim.peters@gmail.com> | 2001-10-26 05:06:50 (GMT) |
---|---|---|
committer | Tim Peters <tim.peters@gmail.com> | 2001-10-26 05:06:50 (GMT) |
commit | 1fc240e85150f5cb39502a87cc9a4a0a8cbe5ab0 (patch) | |
tree | d764262205e36bcc61e7cb42895236fdca67c9d3 /Objects/intobject.c | |
parent | b016da3b8391b7401afd95f2c90f5073976c475b (diff) | |
download | cpython-1fc240e85150f5cb39502a87cc9a4a0a8cbe5ab0.zip cpython-1fc240e85150f5cb39502a87cc9a4a0a8cbe5ab0.tar.gz cpython-1fc240e85150f5cb39502a87cc9a4a0a8cbe5ab0.tar.bz2 |
Generalize dictionary() to accept a sequence of 2-sequences. At the
outer level, the iterator protocol is used for memory-efficiency (the
outer sequence may be very large if fully materialized); at the inner
level, PySequence_Fast() is used for time-efficiency (these should
always be sequences of length 2).
dictobject.c, new functions PyDict_{Merge,Update}FromSeq2. These are
wholly analogous to PyDict_{Merge,Update}, but process a sequence-of-2-
sequences argument instead of a mapping object. For now, I left these
functions file static, so no corresponding doc changes. It's tempting
to change dict.update() to allow a sequence-of-2-seqs argument too.
Also changed the name of dictionary's keyword argument from "mapping"
to "x". Got a better name? "mapping_or_sequence_of_pairs" isn't
attractive, although more so than "mosop" <wink>.
abstract.h, abstract.tex: Added new PySequence_Fast_GET_SIZE function,
much faster than going thru the all-purpose PySequence_Size.
libfuncs.tex:
- Document dictionary().
- Fiddle tuple() and list() to admit that their argument is optional.
- The long-winded repetitions of "a sequence, a container that supports
iteration, or an iterator object" is getting to be a PITA. Many
months ago I suggested factoring this out into "iterable object",
where the definition of that could include being explicit about
generators too (as is, I'm not sure a reader outside of PythonLabs
could guess that "an iterator object" includes a generator call).
- Please check my curly braces -- I'm going blind <0.9 wink>.
abstract.c, PySequence_Tuple(): When PyObject_GetIter() fails, leave
its error msg alone now (the msg it produces has improved since
PySequence_Tuple was generalized to accept iterable objects, and
PySequence_Tuple was also stomping on the msg in cases it shouldn't
have even before PyObject_GetIter grew a better msg).
Diffstat (limited to 'Objects/intobject.c')
0 files changed, 0 insertions, 0 deletions