https://github.com/python/cpython/commit/938c7f716dba08cbb60c1a4f7322be2626ba6206
commit: 938c7f716dba08cbb60c1a4f7322be2626ba6206
branch: 3.11
author: Erlend E. Aasland <[email protected]>
committer: erlend-aasland <[email protected]>
date: 2024-01-26T10:15:34Z
summary:
[3.11] Docs: reword dbm.gnu introduction (#114548) (#114589)
(cherry picked from commit 06c5de36f222b926bbc94831536096b974bd5e77)
Also...
- consistently spell GDBM as GDBM
- silence gdbm class refs
- improve accuracy of dbm.gdbm.open() spec
files:
M Doc/library/dbm.rst
diff --git a/Doc/library/dbm.rst b/Doc/library/dbm.rst
index bc72f0f76ac2e2..1e8e2bb1e353fe 100644
--- a/Doc/library/dbm.rst
+++ b/Doc/library/dbm.rst
@@ -137,27 +137,28 @@ then prints out the contents of the database::
The individual submodules are described in the following sections.
-:mod:`dbm.gnu` --- GNU's reinterpretation of dbm
-------------------------------------------------
+:mod:`dbm.gnu` --- GNU database manager
+---------------------------------------
.. module:: dbm.gnu
:platform: Unix
- :synopsis: GNU's reinterpretation of dbm.
+ :synopsis: GNU database manager
**Source code:** :source:`Lib/dbm/gnu.py`
--------------
-This module is quite similar to the :mod:`dbm` module, but uses the GNU library
-``gdbm`` instead to provide some additional functionality. Please note that
the
-file formats created by :mod:`dbm.gnu` and :mod:`dbm.ndbm` are incompatible.
+The :mod:`dbm.gnu` module provides an interface to the :abbr:`GDBM (GNU dbm)`
+library, similar to the :mod:`dbm.ndbm` module, but with additional
+functionality like crash tolerance.
-The :mod:`dbm.gnu` module provides an interface to the GNU DBM library.
-``dbm.gnu.gdbm`` objects behave like mappings (dictionaries), except that keys
and
-values are always converted to bytes before storing. Printing a ``gdbm``
-object doesn't print the
-keys and values, and the :meth:`items` and :meth:`values` methods are not
-supported.
+:class:`!gdbm` objects behave similar to :term:`mappings <mapping>`,
+except that keys and values are always converted to :class:`bytes` before
storing,
+and the :meth:`!items` and :meth:`!values` methods are not supported.
+
+.. note::
+ The file formats created by :mod:`dbm.gnu` and :mod:`dbm.ndbm` are
+ incompatible and can not be used interchangeably.
.. exception:: error
@@ -165,9 +166,9 @@ supported.
raised for general mapping errors like specifying an incorrect key.
-.. function:: open(filename[, flag[, mode]])
+.. function:: open(filename, flag="r", mode=0o666, /)
- Open a ``gdbm`` database and return a :class:`gdbm` object. The *filename*
+ Open a GDBM database and return a :class:`!gdbm` object. The *filename*
argument is the name of the database file.
The optional *flag* argument can be:
@@ -196,14 +197,14 @@ supported.
| ``'u'`` | Do not lock database. |
+---------+--------------------------------------------+
- Not all flags are valid for all versions of ``gdbm``. The module constant
+ Not all flags are valid for all versions of GDBM. The module constant
:const:`open_flags` is a string of supported flag characters. The exception
:exc:`error` is raised if an invalid flag is specified.
The optional *mode* argument is the Unix mode of the file, used only when
the
database has to be created. It defaults to octal ``0o666``.
- In addition to the dictionary-like methods, ``gdbm`` objects have the
+ In addition to the dictionary-like methods, :class:`gdbm` objects have the
following methods:
.. versionchanged:: 3.11
@@ -212,7 +213,7 @@ supported.
.. method:: gdbm.firstkey()
It's possible to loop over every key in the database using this method
and the
- :meth:`nextkey` method. The traversal is ordered by ``gdbm``'s internal
+ :meth:`nextkey` method. The traversal is ordered by GDBM's internal
hash values, and won't be sorted by the key values. This method returns
the starting key.
@@ -230,7 +231,7 @@ supported.
.. method:: gdbm.reorganize()
If you have carried out a lot of deletions and would like to shrink the
space
- used by the ``gdbm`` file, this routine will reorganize the database.
``gdbm``
+ used by the GDBM file, this routine will reorganize the database.
:class:`!gdbm`
objects will not shorten the length of a database file except by using
this
reorganization; otherwise, deleted file space will be kept and reused as
new
(key, value) pairs are added.
@@ -242,7 +243,7 @@ supported.
.. method:: gdbm.close()
- Close the ``gdbm`` database.
+ Close the GDBM database.
:mod:`dbm.ndbm` --- Interface based on ndbm
-------------------------------------------
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