remove some more bsddb references
diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index d2d4f47..94b6726 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -23,9 +23,6 @@
The specialized containers provided in this module provide alternatives
to Python's general purpose built-in containers, :class:`dict`,
:class:`list`, :class:`set`, and :class:`tuple`.
-Besides the containers provided here, the optional :mod:`bsddb`
-module offers the ability to create in-memory or file based ordered
-dictionaries with string keys using the :meth:`bsddb.btopen` method.
In addition to containers, the collections module provides some ABCs
(abstract base classes) that can be used to test whether a class
diff --git a/Doc/library/dbm.rst b/Doc/library/dbm.rst
index 09069e8..932c2a7 100644
--- a/Doc/library/dbm.rst
+++ b/Doc/library/dbm.rst
@@ -268,9 +268,9 @@
database modules.
The :mod:`dbm.dumb` module provides a persistent dictionary-like interface which
-is written entirely in Python. Unlike other modules such as :mod:`gdbm` and
-:mod:`bsddb`, no external library is required. As with other persistent
-mappings, the keys and values must always be strings.
+is written entirely in Python. Unlike other modules such as :mod:`gdbm` no
+external library is required. As with other persistent mappings, the keys and
+values must always be strings.
The module defines the following:
diff --git a/Doc/library/shelve.rst b/Doc/library/shelve.rst
index 2dee026..1c35f47 100644
--- a/Doc/library/shelve.rst
+++ b/Doc/library/shelve.rst
@@ -55,15 +55,14 @@
.. index::
module: dbm.ndbm
module: dbm.gnu
- module: bsddb
-* The choice of which database package will be used (such as :mod:`dbm.ndbm`,
- :mod:`dbm.gnu` or :mod:`bsddb`) depends on which interface is available. Therefore
- it is not safe to open the database directly using :mod:`dbm`. The database is
- also (unfortunately) subject to the limitations of :mod:`dbm`, if it is used ---
+* The choice of which database package will be used (such as :mod:`dbm.ndbm` or
+ :mod:`dbm.gnu`) depends on which interface is available. Therefore it is not
+ safe to open the database directly using :mod:`dbm`. The database is also
+ (unfortunately) subject to the limitations of :mod:`dbm`, if it is used ---
this means that (the pickled representation of) the objects stored in the
- database should be fairly small, and in rare cases key collisions may cause the
- database to refuse updates.
+ database should be fairly small, and in rare cases key collisions may cause
+ the database to refuse updates.
* Depending on the implementation, closing a persistent dictionary may or may
not be necessary to flush changes to disk. The :meth:`__del__` method of the
@@ -155,9 +154,6 @@
Module :mod:`dbm`
Generic interface to ``dbm``-style databases.
- Module :mod:`bsddb`
- BSD ``db`` database interface.
-
Module :mod:`pickle`
Object serialization used by :mod:`shelve`.