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| author | Guido van Rossum <guido@python.org> | 2003-02-12 20:48:22 (GMT) |
|---|---|---|
| committer | Guido van Rossum <guido@python.org> | 2003-02-12 20:48:22 (GMT) |
| commit | 47710656e53717b8369b72efcc486287f61bd69e (patch) | |
| tree | 865a2fa565460d12a191b62daab1531f4403923e /Misc | |
| parent | 3288f592cba8476faaa9412548be575df3f4d573 (diff) | |
| download | cpython-47710656e53717b8369b72efcc486287f61bd69e.zip cpython-47710656e53717b8369b72efcc486287f61bd69e.tar.gz cpython-47710656e53717b8369b72efcc486287f61bd69e.tar.bz2 | |
Issue a warning when int('0...', 0) returns an int with the sign
folded; this will change in Python 2.4. On a 32-bit machine, this
happens for 0x80000000 through 0xffffffff, and for octal constants in
the same value range. No warning is issued if an explicit base is
given, *or* if the string contains a sign (since in those cases no
sign folding ever happens).
Diffstat (limited to 'Misc')
| -rw-r--r-- | Misc/NEWS | 9 |
1 files changed, 8 insertions, 1 deletions
@@ -10,7 +10,7 @@ What's New in Python 2.3 alpha 2? *Release date: XX-XXX-2003* Core and builtins ------------------ +---------------- - Through a bytecode optimizer bug (and I bet you didn't even know Python *had* a bytecode optimizer :-), "unsigned" hex/oct constants @@ -24,6 +24,13 @@ Core and builtins value, but according to PEP 237 it really needs to be 1 now. This will be backported to Python 2.2.3 a well. (SF #660455) +- int(s, base) sometimes sign-folds hex and oct constants; it only + does this when base is 0 and s.strip() starts with a '0'. When the + sign is actually folded, as in int("0xffffffff", 0) on a 32-bit + machine, which returns -1, a FutureWarning is now issued; in Python + 2.4, this will return 4294967295L, as do int("+0xffffffff", 0) and + int("0xffffffff", 16) right now. (PEP 347) + - super(X, x): x may now be a proxy for an X instance, i.e. issubclass(x.__class__, X) but not issubclass(type(x), X). |