Mercurial > cpython-lru_cache-weakref

annotate Doc/includes/sqlite3/executescript.py @ 87690:66c1c9f32567 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859
author Radomir Dopieralski <devel@sheep.art.pl>
date Tue, 03 Dec 2013 16:02:48 +0100
parents 9e1529bf0442
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
42604
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
1 import sqlite3
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
2
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
3 con = sqlite3.connect(":memory:")
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
4 cur = con.cursor()
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
5 cur.executescript("""
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
6 create table person(
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
7 firstname,
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
8 lastname,
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
9 age
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
10 );
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
11
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
12 create table book(
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
13 title,
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
14 author,
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
15 published
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
16 );
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
17
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
18 insert into book(title, author, published)
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
19 values (
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
20 'Dirk Gently''s Holistic Detective Agency',
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
21 'Douglas Adams',
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
22 1987
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
23 );
9e1529bf0442 Move the 3k reST doc tree in place.
Georg Brandl <georg@python.org>
parents:
diff changeset
24 """)