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| author | Christian Heimes <christian@cheimes.de> | 2008-02-23 18:30:17 (GMT) |
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| committer | Christian Heimes <christian@cheimes.de> | 2008-02-23 18:30:17 (GMT) |
| commit | 05e8be17fd15d8e649e026600f5ab20e1154599f (patch) | |
| tree | aecf3cd024e9cf2ed2ae49087b6c74dba29c7c7e /Doc/library/pickle.rst | |
| parent | 5abe9125f9eb858fdaca966d687bb32387603f45 (diff) | |
| download | cpython-05e8be17fd15d8e649e026600f5ab20e1154599f.zip cpython-05e8be17fd15d8e649e026600f5ab20e1154599f.tar.gz cpython-05e8be17fd15d8e649e026600f5ab20e1154599f.tar.bz2 | |
Merged revisions 60990-61002 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r60990 | eric.smith | 2008-02-23 17:05:26 +0100 (Sat, 23 Feb 2008) | 1 line
Removed duplicate Py_CHARMASK define. It's already defined in Python.h.
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r60991 | andrew.kuchling | 2008-02-23 17:23:05 +0100 (Sat, 23 Feb 2008) | 4 lines
#1330538: Improve comparison of xmlrpclib.DateTime and datetime instances.
Remove automatic handling of datetime.date and datetime.time.
This breaks backward compatibility, but python-dev discussion was strongly
against this automatic conversion; see the bug for a link.
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r60994 | andrew.kuchling | 2008-02-23 17:39:43 +0100 (Sat, 23 Feb 2008) | 1 line
#835521: Add index entries for various pickle-protocol methods and attributes
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r60995 | andrew.kuchling | 2008-02-23 18:10:46 +0100 (Sat, 23 Feb 2008) | 2 lines
#1433694: minidom's .normalize() failed to set .nextSibling for last element.
Fix by Malte Helmert
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r61000 | christian.heimes | 2008-02-23 18:40:11 +0100 (Sat, 23 Feb 2008) | 1 line
Patch #2167 from calvin: Remove unused imports
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r61001 | christian.heimes | 2008-02-23 18:42:31 +0100 (Sat, 23 Feb 2008) | 1 line
Patch #1957: syslogmodule: Release GIL when calling syslog(3)
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r61002 | christian.heimes | 2008-02-23 18:52:07 +0100 (Sat, 23 Feb 2008) | 2 lines
Issue #2051 and patch from Alexander Belopolsky:
Permission for pyc and pyo files are inherited from the py file.
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Diffstat (limited to 'Doc/library/pickle.rst')
| -rw-r--r-- | Doc/library/pickle.rst | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Doc/library/pickle.rst b/Doc/library/pickle.rst index a9288e6..33bd9c9 100644 --- a/Doc/library/pickle.rst +++ b/Doc/library/pickle.rst @@ -451,6 +451,11 @@ can do what they want. [#]_ Pickling and unpickling extension types ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +.. index:: + single: __reduce__() (pickle protocol) + single: __reduce_ex__() (pickle protocol) + single: __safe_for_unpickling__ (pickle protocol) + When the :class:`Pickler` encounters an object of a type it knows nothing about --- such as an extension type --- it looks in two places for a hint of how to pickle it. One alternative is for the object to implement a :meth:`__reduce__` @@ -526,6 +531,10 @@ unpickling as described above. Pickling and unpickling external objects ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +.. index:: + single: persistent_id (pickle protocol) + single: persistent_load (pickle protocol) + For the benefit of object persistence, the :mod:`pickle` module supports the notion of a reference to an object outside the pickled data stream. Such objects are referenced by a "persistent id", which is just an arbitrary string @@ -615,6 +624,10 @@ with the :meth:`noload` method on the Unpickler. Subclassing Unpicklers ---------------------- +.. index:: + single: load_global() (pickle protocol) + single: find_global() (pickle protocol) + By default, unpickling will import any class that it finds in the pickle data. You can control exactly what gets unpickled and what gets called by customizing your unpickler. Unfortunately, exactly how you do this is different depending |