From 59d1d2b434e8cf79e8b1321f148254c68f56c1f7 Mon Sep 17 00:00:00 2001 From: Guido van Rossum Date: Fri, 20 Apr 2001 19:13:02 +0000 Subject: 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???) --- Python/import.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Python/import.c') diff --git a/Python/import.c b/Python/import.c index bde49ce91c..2c15d1050c 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 -- cgit v1.2.1