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Suggest using default values for __init__ arguments to make classes 

unpicklable.
This commit is contained in:
Guido van Rossum 1996-08-09 21:23:47 +00:00
parent 4a5b27b525
commit 12f0cc325a
2 changed files with 6 additions and 2 deletions
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4
Doc/lib/libpickle.tex
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@ -86,7 +86,9 @@ First of all, the class must be defined at the top level in a module.
\renewcommand{\indexsubitem}{(pickle protocol)}
Next, it must normally be possible to create class instances by
calling the class without arguments. If this is undesirable, the
calling the class without arguments. Usually, this is best
accomplished by providing default values for all arguments to its
\code{__init__} method (if it has one). If this is undesirable, the
class can define a method \code{__getinitargs__()}, which should
return a {\em tuple} containing the arguments to be passed to the
class constructor (\code{__init__()}).

4
Doc/libpickle.tex
View File

@ -86,7 +86,9 @@ First of all, the class must be defined at the top level in a module.
\renewcommand{\indexsubitem}{(pickle protocol)}
Next, it must normally be possible to create class instances by
calling the class without arguments. If this is undesirable, the
calling the class without arguments. Usually, this is best
accomplished by providing default values for all arguments to its
\code{__init__} method (if it has one). If this is undesirable, the
class can define a method \code{__getinitargs__()}, which should
return a {\em tuple} containing the arguments to be passed to the
class constructor (\code{__init__()}).