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| author | Guido van Rossum <guido@python.org> | 2001-04-20 19:13:02 (GMT) |
|---|---|---|
| committer | Guido van Rossum <guido@python.org> | 2001-04-20 19:13:02 (GMT) |
| commit | 59d1d2b434e8cf79e8b1321f148254c68f56c1f7 (patch) | |
| tree | 7bbdfe6fcb9145d66de44e2085f4d085c95aea1e /Python/import.c | |
| parent | 12e73bb2f08db45fb92bf2aa57992424351be03d (diff) | |
| download | cpython-59d1d2b434e8cf79e8b1321f148254c68f56c1f7.zip cpython-59d1d2b434e8cf79e8b1321f148254c68f56c1f7.tar.gz cpython-59d1d2b434e8cf79e8b1321f148254c68f56c1f7.tar.bz2 | |
Iterators phase 1. This comprises:
new slot tp_iter in type object, plus new flag Py_TPFLAGS_HAVE_ITER
new C API PyObject_GetIter(), calls tp_iter
new builtin iter(), with two forms: iter(obj), and iter(function, sentinel)
new internal object types iterobject and calliterobject
new exception StopIteration
new opcodes for "for" loops, GET_ITER and FOR_ITER (also supported by dis.py)
new magic number for .pyc files
new special method for instances: __iter__() returns an iterator
iteration over dictionaries: "for x in dict" iterates over the keys
iteration over files: "for x in file" iterates over lines
TODO:
documentation
test suite
decide whether to use a different way to spell iter(function, sentinal)
decide whether "for key in dict" is a good idea
use iterators in map/filter/reduce, min/max, and elsewhere (in/not in?)
speed tuning (make next() a slot tp_next???)
Diffstat (limited to 'Python/import.c')
| -rw-r--r-- | Python/import.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Python/import.c b/Python/import.c index bde49ce..2c15d10 100644 --- a/Python/import.c +++ b/Python/import.c @@ -43,7 +43,7 @@ extern time_t PyOS_GetLastModificationTime(char *, FILE *); /* XXX Perhaps the magic number should be frozen and a version field added to the .pyc file header? */ /* New way to come up with the magic number: (YEAR-1995), MONTH, DAY */ -#define MAGIC (60202 | ((long)'\r'<<16) | ((long)'\n'<<24)) +#define MAGIC (60420 | ((long)'\r'<<16) | ((long)'\n'<<24)) /* Magic word as global; note that _PyImport_Init() can change the value of this global to accommodate for alterations of how the |