Generic Exception Handling in Python the "Right Way"

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

from __future__ import with_statementimport contextlib@contextlib.contextmanagerdef handler():    try:        yield    except Exception, e:        baz(e)

Your example now becomes:

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

If this is always, always the behaviour you want when a particular function raises an exception, you could use a decorator:

def handle_exception(handler):    def decorate(func):        def call_function(*args, **kwargs):            try:                func(*args, **kwargs)            except Exception, e:                handler(e)        return call_function    return decoratedef baz(e):    print(e)@handle_exception(baz)def foo(a, b):    return a + b@handle_exception(baz)def bar(c, d):    return c.index(d)

Usage:

>>> foo(1, '2')unsupported operand type(s) for +: 'int' and 'str'>>> bar('steve', 'cheese')substring not found

If they're simple one-line commands, you can wrap them in lambdas:

for cmd in [    (lambda: foo (a, b)),    (lambda: bar (c, d)),]:    try:        cmd ()    except StandardError, e:        baz (e)

You could wrap that whole thing up in a function, so it looked like this:

ignore_errors (baz, [    (lambda: foo (a, b)),    (lambda: bar (c, d)),])