"""Assert a function raises a particular LdbError."""
try:
f(*args, **kwargs)
- except ldb.LdbError as (num, msg):
+ except ldb.LdbError as e:
+ (num, msg) = e.args
if num != errcode:
lut = {v: k for k, v in vars(ldb).iteritems()
if k.startswith('ERR_') and isinstance(v, int)}