executemany & UPDATE (MySQL & Python)
gerhard at bigfoot.de
Fri Jun 14 12:54:43 EDT 2002
In article <mailman.1024071438.5095.python-list at python.org>, Nick Arnett wrote:
> Can anyone confirm that it is *not* possible to pass a list to the Python
> MySQLdb module in UPDATE operations?
executemany accepts a sequence of sequences, like:
self.dbh.execute("UPDATE Foo SET bla=%s, blorg=%s WHERE snork=%s",
> Doing the latter with a loop in Python is much slower than I'd expect that
> doing it with a list would be.
For database modules that don't support prepared statements, the db module
implements executemany with multiple calls to execute, anyway.
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reduce(lambda x,y:x+y,map(lambda x:chr(ord(x)^42),tuple('zS^BED\nX_FOY\x0b')))
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