python-mysqldb silently drops exceptions on deadlocks

[Eskil Heyn Olsen]

Binary package hint: python-mysqldb

There is a missing check in _mysql.c _mysql_ResultObject_Initialize, where a failed SELECT that ends in a deadlock, returns a NULL from mysql_store result, but according to http://dev.mysql.com/doc/refman/5.0/en/null-mysql-store-result.html, you have to check errno or num_fields afterwards.

Not doing this, causes exceptions to be silently dropped.

Here's a similar bugreport http://sourceforge.net/tracker/?func=detail&aid=2776267&group_id=22307&atid=374932

Attached is a patch that fixes the problem in _mysql.c. It was made against 1.2.3, but applies to 1.2.2 with some fuzz.

Patch has also been submitted to python-mysqldb at sourceforge (http://sourceforge.net/tracker/?func=detail&aid=3008217&group_id=22307&atid=374934) and for debian (http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=584260)

[dino99 (9d9)]

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