diff --git a/Doc/partparse.py b/Doc/partparse.py
index 83b58bd..1f8e952 100644
--- a/Doc/partparse.py
+++ b/Doc/partparse.py
@@ -1001,7 +1001,7 @@
 # things that are special to LaTeX, but not to texi..
 onlylatexspecial = '_~^$#&%'
 
-class Struct(): pass
+class Struct: pass
 
 hist = Struct()
 out = Struct()
diff --git a/Doc/ref/ref3.tex b/Doc/ref/ref3.tex
index 2d3b1e8..df62486 100644
--- a/Doc/ref/ref3.tex
+++ b/Doc/ref/ref3.tex
@@ -592,6 +592,24 @@
 
 \begin{description}
 
+\item[\tt __init__(self, args...)]
+Called when the instance is created.  The arguments are those passed
+to the class constructor expression.  If a base class has an
+\code{__init__} method the derived class's \code{__init__} method must
+explicitly call it to ensure proper initialization of the base class
+part of the instance.
+
+\item[\tt __del__(self)]
+Called when the instance is about to be destroyed.  If a base class
+has an \code{__del__} method the derived class's \code{__del__} method
+must explicitly call it to ensure proper deletion of the base class
+part of the instance.  Note that it is possible for the \code{__del__}
+method to postpone destruction of the instance by creating a new
+reference to it.  It may then be called at a later time when this new
+reference is deleted.  Also note that it is not guaranteed that
+\code{__del__} methods are called for objects that still exist when
+the interpreter exits.
+
 \item[\tt __repr__(self)]
 Called by the \verb\print\ statement and conversions (reverse quotes) to
 compute the string representation of an object.
diff --git a/Doc/ref3.tex b/Doc/ref3.tex
index 2d3b1e8..df62486 100644
--- a/Doc/ref3.tex
+++ b/Doc/ref3.tex
@@ -592,6 +592,24 @@
 
 \begin{description}
 
+\item[\tt __init__(self, args...)]
+Called when the instance is created.  The arguments are those passed
+to the class constructor expression.  If a base class has an
+\code{__init__} method the derived class's \code{__init__} method must
+explicitly call it to ensure proper initialization of the base class
+part of the instance.
+
+\item[\tt __del__(self)]
+Called when the instance is about to be destroyed.  If a base class
+has an \code{__del__} method the derived class's \code{__del__} method
+must explicitly call it to ensure proper deletion of the base class
+part of the instance.  Note that it is possible for the \code{__del__}
+method to postpone destruction of the instance by creating a new
+reference to it.  It may then be called at a later time when this new
+reference is deleted.  Also note that it is not guaranteed that
+\code{__del__} methods are called for objects that still exist when
+the interpreter exits.
+
 \item[\tt __repr__(self)]
 Called by the \verb\print\ statement and conversions (reverse quotes) to
 compute the string representation of an object.
diff --git a/Doc/tools/partparse.py b/Doc/tools/partparse.py
index 83b58bd..1f8e952 100644
--- a/Doc/tools/partparse.py
+++ b/Doc/tools/partparse.py
@@ -1001,7 +1001,7 @@
 # things that are special to LaTeX, but not to texi..
 onlylatexspecial = '_~^$#&%'
 
-class Struct(): pass
+class Struct: pass
 
 hist = Struct()
 out = Struct()