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| author | Stefan Krah <skrah@bytereef.org> | 2012-09-02 12:50:56 (GMT) |
|---|---|---|
| committer | Stefan Krah <skrah@bytereef.org> | 2012-09-02 12:50:56 (GMT) |
| commit | 9c8ad0737a4fbacfdb324c01d28dc29b81599b15 (patch) | |
| tree | 1af565296c6d433f847fe8c0aea845563f1d3e3a /Doc | |
| parent | 02f66cbe8715db68167e61961c1bbba3f9cd22c1 (diff) | |
| download | cpython-9c8ad0737a4fbacfdb324c01d28dc29b81599b15.zip cpython-9c8ad0737a4fbacfdb324c01d28dc29b81599b15.tar.gz cpython-9c8ad0737a4fbacfdb324c01d28dc29b81599b15.tar.bz2 | |
Issue #15814: Documentation: disallow hashing of multi-dimensional memoryviews.
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/library/stdtypes.rst | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst index 23d7fe1..90f3e54 100644 --- a/Doc/library/stdtypes.rst +++ b/Doc/library/stdtypes.rst @@ -2376,8 +2376,9 @@ copying. >>> data bytearray(b'z1spam') - Memoryviews of hashable (read-only) types with formats 'B', 'b' or 'c' - are also hashable. The hash is defined as ``hash(m) == hash(m.tobytes())``:: + One-dimensional memoryviews of hashable (read-only) types with formats + 'B', 'b' or 'c' are also hashable. The hash is defined as + ``hash(m) == hash(m.tobytes())``:: >>> v = memoryview(b'abcefg') >>> hash(v) == hash(b'abcefg') @@ -2388,12 +2389,13 @@ copying. True .. versionchanged:: 3.3 - Memoryview objects with formats 'B', 'b' or 'c' are now hashable. + One-dimensional memoryviews with formats 'B', 'b' or 'c' are now hashable. .. note:: - Hashing of memoryviews with formats other than 'B', 'b' or 'c' is - possible in version 3.3.0, but will raise an error in 3.3.1 in order - to be compatible with the new memoryview equality definition. + Hashing of memoryviews with formats other than 'B', 'b' or 'c' as well + as hashing of multi-dimensional memoryviews is possible in version 3.3.0, + but will raise an error in 3.3.1 in order to be compatible with the new + memoryview equality definition. :class:`memoryview` has several methods: |