mirror of
https://github.com/python/cpython.git
synced 2025-10-30 21:21:22 +00:00
42 lines
1.3 KiB
Python
42 lines
1.3 KiB
Python
import sqlite3
|
|
|
|
con = sqlite3.connect(":memory:")
|
|
cur = con.cursor()
|
|
|
|
# Create the table
|
|
con.execute("create table person(lastname, firstname)")
|
|
|
|
AUSTRIA = "\xd6sterreich"
|
|
|
|
# by default, rows are returned as Unicode
|
|
cur.execute("select ?", (AUSTRIA,))
|
|
row = cur.fetchone()
|
|
assert row[0] == AUSTRIA
|
|
|
|
# but we can make pysqlite always return bytestrings ...
|
|
con.text_factory = str
|
|
cur.execute("select ?", (AUSTRIA,))
|
|
row = cur.fetchone()
|
|
assert type(row[0]) == str
|
|
# the bytestrings will be encoded in UTF-8, unless you stored garbage in the
|
|
# database ...
|
|
assert row[0] == AUSTRIA.encode("utf-8")
|
|
|
|
# we can also implement a custom text_factory ...
|
|
# here we implement one that will ignore Unicode characters that cannot be
|
|
# decoded from UTF-8
|
|
con.text_factory = lambda x: str(x, "utf-8", "ignore")
|
|
cur.execute("select ?", ("this is latin1 and would normally create errors" + "\xe4\xf6\xfc".encode("latin1"),))
|
|
row = cur.fetchone()
|
|
assert type(row[0]) == str
|
|
|
|
# pysqlite offers a builtin 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]) == str
|
|
|
|
cur.execute("select ?", ("Germany",))
|
|
row = cur.fetchone()
|
|
assert type(row[0]) == str
|