Added description of optional parameter to UserDict constructor.
Omission reported by Barry Warsaw.
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@ -12,10 +12,13 @@ can add new behaviours to dictionaries.
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The \module{UserDict} module defines the \class{UserDict} class:
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\begin{classdesc}{UserDict}{}
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\begin{classdesc}{UserDict}{\optional{intialdata}}
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Return a class instance that simulates a dictionary. The instance's
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contents are kept in a regular dictionary, which is accessible via the
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\member{data} attribute of \class{UserDict} instances.
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\member{data} attribute of \class{UserDict} instances. If
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\var{initialdata} is provided, \member{data} is initialized with its
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contents; note that a reference to \var{initialdata} will not be kept,
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allowing it be used used for other purposes.
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\end{classdesc}
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In addition to supporting the methods and operations of mappings (see
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