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Docs: group sqlite3.Connection attributes and methods (#96090)

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Erlend E. Aasland 2022-08-19 09:30:41 +02:00 • committed by GitHub
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Doc/library/sqlite3.rst
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@ -545,6 +545,43 @@ Connection objects
.. versionadded:: 3.2 .. versionadded:: 3.2
.. attribute:: row_factory
A callable that accepts two arguments,
a :class:`Cursor` object and the raw row results as a :class:`tuple`,
and returns a custom object representing an SQLite row.
Example:
.. literalinclude:: ../includes/sqlite3/row_factory.py
If returning a tuple doesn't suffice and you want name-based access to
columns, you should consider setting :attr:`row_factory` to the
highly optimized :class:`sqlite3.Row` type. :class:`Row` provides both
index-based and case-insensitive name-based access to columns with almost no
memory overhead. It will probably be better than your own custom
dictionary-based approach or even a db_row based solution.
.. XXX what's a db_row-based solution?
.. attribute:: text_factory
A callable that accepts a :class:`bytes` parameter and returns a text
representation of it.
The callable is invoked for SQLite values with the ``TEXT`` data type.
By default, this attribute is set to :class:`str`.
If you want to return ``bytes`` instead, set *text_factory* to ``bytes``.
Example:
.. literalinclude:: ../includes/sqlite3/text_factory.py
.. attribute:: total_changes
Return the total number of database rows that have been modified, inserted, or
deleted since the database connection was opened.
.. method:: cursor(factory=Cursor) .. method:: cursor(factory=Cursor)
Create and return a :class:`Cursor` object. Create and return a :class:`Cursor` object.
@ -856,45 +893,6 @@ Connection objects
.. versionchanged:: 3.10 .. versionchanged:: 3.10
Added the ``sqlite3.load_extension`` auditing event. Added the ``sqlite3.load_extension`` auditing event.
.. attribute:: row_factory
A callable that accepts two arguments,
a :class:`Cursor` object and the raw row results as a :class:`tuple`,
and returns a custom object representing an SQLite row.
Example:
.. literalinclude:: ../includes/sqlite3/row_factory.py
If returning a tuple doesn't suffice and you want name-based access to
columns, you should consider setting :attr:`row_factory` to the
highly optimized :class:`sqlite3.Row` type. :class:`Row` provides both
index-based and case-insensitive name-based access to columns with almost no
memory overhead. It will probably be better than your own custom
dictionary-based approach or even a db_row based solution.
.. XXX what's a db_row-based solution?
.. attribute:: text_factory
A callable that accepts a :class:`bytes` parameter and returns a text
representation of it.
The callable is invoked for SQLite values with the ``TEXT`` data type.
By default, this attribute is set to :class:`str`.
If you want to return ``bytes`` instead, set *text_factory* to ``bytes``.
Example:
.. literalinclude:: ../includes/sqlite3/text_factory.py
.. attribute:: total_changes
Return the total number of database rows that have been modified, inserted, or
deleted since the database connection was opened.
.. method:: iterdump .. method:: iterdump
Return an :term:`iterator` to dump the database as SQL source code. Return an :term:`iterator` to dump the database as SQL source code.