Question

Sometimes I find myself in the situation where I want to execute several sequential commands like such:

try:     foo(a, b) except Exception, e:     baz(e) try:     bar(c, d) except Exception, e:     baz(e) ... 

This same pattern occurs when exceptions simply need to be ignored.

This feels redundant and the excessive syntax causes it to be surprisingly difficult to follow when reading code.

In C, I would have solved this type of problem easily with a macro, but unfortunately, this cannot be done in straight python.

Question: How can I best reduce the code footprint and increase code readability when coming across this pattern?

Answer 1

You could use the with statement if you have python 2.5 or above:

from __future__ import with_statement import contextlib  @contextlib.contextmanager def handler():     try:         yield     except Exception, e:         baz(e) 

Your example now becomes:

with handler():     foo(a, b) with handler():     bar(c, d)