Initial patch by Johannes Vogel. Issue #13491.
import sqlite3
-con = sqlite3.connect("mydb")
-
+con = sqlite3.connect(":memory:")
cur = con.cursor()
+cur.execute("create table people (name_last, age)")
who = "Yeltsin"
age = 72
-cur.execute("select name_last, age from people where name_last=? and age=?", (who, age))
+# This is the qmark style:
+cur.execute("insert into people values (?, ?)", (who, age))
+
+# And this is the named style:
+cur.execute("select * from people where name_last=:who and age=:age", {"who": who, "age": age})
+
print cur.fetchone()
+++ /dev/null
-import sqlite3
-
-con = sqlite3.connect("mydb")
-
-cur = con.cursor()
-
-who = "Yeltsin"
-age = 72
-
-cur.execute("select name_last, age from people where name_last=:who and age=:age",
- {"who": who, "age": age})
-print cur.fetchone()
import sqlite3
+import string
def char_generator():
- import string
- for c in string.letters[:26]:
+ for c in string.lowercase:
yield (c,)
con = sqlite3.connect(":memory:")
import sqlite3
-con = sqlite3.connect("mydb")
+con = sqlite3.connect(":memory:")
con.row_factory = sqlite3.Row
cur = con.cursor()
-cur.execute("select name_last, age from people")
+cur.execute("select 'John' as name, 42 as age")
for row in cur:
- assert row[0] == row["name_last"]
- assert row["name_last"] == row["nAmE_lAsT"]
+ assert row[0] == row["name"]
+ assert row["name"] == row["nAmE"]
assert row[1] == row["age"]
assert row[1] == row["AgE"]
con = sqlite3.connect(":memory:")
cur = con.cursor()
-# Create the table
-con.execute("create table person(lastname, firstname)")
-
AUSTRIA = u"\xd6sterreich"
# by default, rows are returned as Unicode
con.text_factory = str
cur.execute("select ?", (AUSTRIA,))
row = cur.fetchone()
-assert type(row[0]) == str
+assert type(row[0]) is str
# the bytestrings will be encoded in UTF-8, unless you stored garbage in the
# database ...
assert row[0] == AUSTRIA.encode("utf-8")
cur.execute("select ?", ("this is latin1 and would normally create errors" +
u"\xe4\xf6\xfc".encode("latin1"),))
row = cur.fetchone()
-assert type(row[0]) == unicode
+assert type(row[0]) is unicode
# sqlite3 offers a built-in optimized text_factory that will return bytestring
# objects, if the data is in ASCII only, and otherwise return unicode objects
con.text_factory = sqlite3.OptimizedUnicode
cur.execute("select ?", (AUSTRIA,))
row = cur.fetchone()
-assert type(row[0]) == unicode
+assert type(row[0]) is unicode
cur.execute("select ?", ("Germany",))
row = cur.fetchone()
-assert type(row[0]) == str
+assert type(row[0]) is str
.. module:: sqlite3
:synopsis: A DB-API 2.0 implementation using SQLite 3.x.
-.. sectionauthor:: Gerhard HÃ\83¤ring <gh@ghaering.de>
+.. sectionauthor:: Gerhard Häring <gh@ghaering.de>
.. versionadded:: 2.5
>>> c = conn.cursor()
>>> c.execute('select * from stocks order by price')
>>> for row in c:
- ... print row
+ ... print row
...
(u'2006-01-05', u'BUY', u'RHAT', 100, 35.14)
(u'2006-03-28', u'BUY', u'IBM', 1000, 45.0)
supplied, this must be a custom cursor class that extends
:class:`sqlite3.Cursor`.
-
.. method:: Connection.commit()
This method commits the current transaction. If you don't call this method,
.. method:: Connection.set_progress_handler(handler, n)
- .. versionadded:: 2.6
-
This routine registers a callback. The callback is invoked for every *n*
instructions of the SQLite virtual machine. This is useful if you want to
get called from SQLite during long-running operations, for example to update
If you want to clear any previously installed progress handler, call the
method with :const:`None` for *handler*.
+ .. versionadded:: 2.6
-.. method:: Connection.enable_load_extension(enabled)
- .. versionadded:: 2.7
+.. method:: Connection.enable_load_extension(enabled)
This routine allows/disallows the SQLite engine to load SQLite extensions
from shared libraries. SQLite extensions can define new functions,
aggregates or whole new virtual table implementations. One well-known
extension is the fulltext-search extension distributed with SQLite.
- .. literalinclude:: ../includes/sqlite3/load_extension.py
+ Loadable extensions are disabled by default. See [#f1]_.
- Loadable extensions are disabled by default. See [#f1]_
+ .. versionadded:: 2.7
-.. method:: Connection.load_extension(path)
+ .. literalinclude:: ../includes/sqlite3/load_extension.py
- .. versionadded:: 2.7
+.. method:: Connection.load_extension(path)
This routine loads a SQLite extension from a shared library. You have to
enable extension loading with :meth:`enable_load_extension` before you can
use this routine.
- Loadable extensions are disabled by default. See [#f1]_
+ Loadable extensions are disabled by default. See [#f1]_.
+
+ .. versionadded:: 2.7
.. attribute:: Connection.row_factory
kinds of placeholders: question marks (qmark style) and named placeholders
(named style).
- This example shows how to use parameters with qmark style:
+ Here's an example of both styles:
.. literalinclude:: ../includes/sqlite3/execute_1.py
- This example shows how to use the named style:
-
- .. literalinclude:: ../includes/sqlite3/execute_2.py
-
:meth:`execute` will only execute a single SQL statement. If you try to execute
more than one statement with it, it will raise a Warning. Use
:meth:`executescript` if you want to execute multiple SQL statements with one
['date', 'trans', 'symbol', 'qty', 'price']
>>> r['qty']
100.0
- >>> for member in r: print member
+ >>> for member in r:
+ ... print member
...
2006-01-05
BUY
Kurt Vile
Norman Vine
Frank Visser
+Johannes Vogel
Niki W. Waibel
Wojtek Walczak
Charles Waldman
Documentation
-------------
-- Issue #13995: Fix errors in sqlite3's Cursor.rowcount documentation
+- Issues #13491 and #13995: Fix many errors in sqlite3 documentation.
+ Initial patch for #13491 by Johannes Vogel.
- Issue #13402: Document absoluteness of sys.executable.
projects / python / commitdiff