Mercurial > cpython-lru_cache-weakref

annotate Doc/includes/sqlite3/ctx_manager.py @ 79691:05c8928362ee

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Merge __next__ method link fixes with 3.3.
author Ezio Melotti <ezio.melotti@gmail.com>
date Fri, 12 Oct 2012 13:46:37 +0300
parents bc16d1300ee1
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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46181
09053a7c1cdf Same documentation for sqlite3 module as in 2.6.
Gerhard Häring <gh@ghaering.de>
parents:
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1 import sqlite3
09053a7c1cdf Same documentation for sqlite3 module as in 2.6.
Gerhard Häring <gh@ghaering.de>
parents:
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2
09053a7c1cdf Same documentation for sqlite3 module as in 2.6.
Gerhard Häring <gh@ghaering.de>
parents:
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3 con = sqlite3.connect(":memory:")
09053a7c1cdf Same documentation for sqlite3 module as in 2.6.
Gerhard Häring <gh@ghaering.de>
parents:
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4 con.execute("create table person (id integer primary key, firstname varchar unique)")
09053a7c1cdf Same documentation for sqlite3 module as in 2.6.
Gerhard Häring <gh@ghaering.de>
parents:
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5
09053a7c1cdf Same documentation for sqlite3 module as in 2.6.
Gerhard Häring <gh@ghaering.de>
parents:
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6 # Successful, con.commit() is called automatically afterwards
09053a7c1cdf Same documentation for sqlite3 module as in 2.6.
Gerhard Häring <gh@ghaering.de>
parents:
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7 with con:
09053a7c1cdf Same documentation for sqlite3 module as in 2.6.
Gerhard Häring <gh@ghaering.de>
parents:
diff changeset
8 con.execute("insert into person(firstname) values (?)", ("Joe",))
09053a7c1cdf Same documentation for sqlite3 module as in 2.6.
Gerhard Häring <gh@ghaering.de>
parents:
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9
09053a7c1cdf Same documentation for sqlite3 module as in 2.6.
Gerhard Häring <gh@ghaering.de>
parents:
diff changeset
10 # con.rollback() is called after the with block finishes with an exception, the
73230
bc16d1300ee1 caught is the right pp of catch; thanks to Don Bennett from docs@
Sandro Tosi <sandro.tosi@gmail.com>
parents: 46181
diff changeset
11 # exception is still raised and must be caught
46181
09053a7c1cdf Same documentation for sqlite3 module as in 2.6.
Gerhard Häring <gh@ghaering.de>
parents:
diff changeset
12 try:
09053a7c1cdf Same documentation for sqlite3 module as in 2.6.
Gerhard Häring <gh@ghaering.de>
parents:
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13 with con:
09053a7c1cdf Same documentation for sqlite3 module as in 2.6.
Gerhard Häring <gh@ghaering.de>
parents:
diff changeset
14 con.execute("insert into person(firstname) values (?)", ("Joe",))
09053a7c1cdf Same documentation for sqlite3 module as in 2.6.
Gerhard Häring <gh@ghaering.de>
parents:
diff changeset
15 except sqlite3.IntegrityError:
09053a7c1cdf Same documentation for sqlite3 module as in 2.6.
Gerhard Häring <gh@ghaering.de>
parents:
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16 print("couldn't add Joe twice")