Mercurial > cpython-lru_cache-weakref

diff Python/import.c @ 64638:20a2153b0dda

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Fix incorrect comment regarding MAGIC and TAG in import.c
author Nick Coghlan <ncoghlan@gmail.com>
date Sat, 11 Sep 2010 00:39:25 +0000
parents 252895d49157
children dd3080b80dda
line wrap: on
line diff
--- a/Python/import.c	Sat Sep 11 00:22:12 2010 +0000
+++ b/Python/import.c	Sat Sep 11 00:39:25 2010 +0000
@@ -108,8 +108,11 @@
        Python 3.2a2  3180 (add DELETE_DEREF)
 */
 
-/* If you change MAGIC, you must change TAG and you must insert the old value
-   into _PyMagicNumberTags below.
+/* MAGIC must change whenever the bytecode emitted by the compiler may no
+   longer be understood by older implementations of the eval loop (usually
+   due to the addition of new opcodes)
+   TAG must change for each major Python release. The magic number will take
+   care of any bytecode changes that occur during development.
 */
 #define MAGIC (3180 | ((long)'\r'<<16) | ((long)'\n'<<24))
 #define TAG "cpython-32"