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Batuhan Osman TASKAYA
cpython
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84e26b6d
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84e26b6d
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Eki 31, 2007
tarafından
Raymond Hettinger
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Clarify the reasons why pickle is almost always better than marshal
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Doc/library/marshal.rst
Dosyayı görüntüle @
84e26b6d
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@@ -25,7 +25,9 @@ transfer of Python objects through RPC calls, see the modules :mod:`pickle` and
writing the "pseudo-compiled" code for Python modules of :file:`.pyc` files.
Therefore, the Python maintainers reserve the right to modify the marshal format
in backward incompatible ways should the need arise. If you're serializing and
de-serializing Python objects, use the :mod:`pickle` module instead.
de-serializing Python objects, use the :mod:`pickle` module instead -- the
performance is comparable, version independence is guaranteed, and pickle
supports a substantially wider range of objects than marshal.
.. warning::
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@@ -42,6 +44,12 @@ and dictionaries are only supported as long as the values contained therein are
themselves supported; and recursive lists and dictionaries should not be written
(they will cause infinite loops).
.. warning::
Some unsupported types such as subclasses of builtins will appear to marshal
and unmarshal correctly, but in fact, their type will change and the
additional subclass functionality and instance attributes will be lost.
.. warning::
On machines where C's ``long int`` type has more than 32 bits (such as the
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