add a SETUP_WITH opcode

It speeds up the with statement and correctly looks up the special
methods involved.

1 files changed, 3 insertions, 1 deletions

diff --git a/Doc/reference/compound_stmts.rst b/Doc/reference/compound_stmts.rst
index 3c716b2..afb7ebc 100644
--- a/Doc/reference/compound_stmts.rst
+++ b/Doc/reference/compound_stmts.rst
@@ -339,6 +339,8 @@ The execution of the :keyword:`with` statement proceeds as follows:
 
 #. The context expression is evaluated to obtain a context manager.
 
+#. The context manager's :meth:`__exit__` is loaded for later use.
+
 #. The context manager's :meth:`__enter__` method is invoked.
 
 #. If a target was included in the :keyword:`with` statement, the return value
@@ -349,7 +351,7 @@ The execution of the :keyword:`with` statement proceeds as follows:
       The :keyword:`with` statement guarantees that if the :meth:`__enter__` method
       returns without an error, then :meth:`__exit__` will always be called. Thus, if
       an error occurs during the assignment to the target list, it will be treated the
-      same as an error occurring within the suite would be. See step 5 below.
+      same as an error occurring within the suite would be. See step 6 below.
 
 #. The suite is executed.