General decorator to wrap try except in python?

Question

I\'d interacting with a lot of deeply nested json I didn\'t write, and would like to make my python script more \'forgiving\' to invalid input. I find myself writing involve

Answer 1

Why not just use cycle?

for dst_key, src_key in (('a', 'key'), ('b', 'key2')):
    try:
        item[dst_key] = myobject.get(src_key).get('subkey')
    except Exception:  # or KeyError?
        item[dst_key] = ''

Or if you wish write a little helper:

def get_value(obj, key):
    try:
        return obj.get(key).get('subkey')
    except Exception:
        return ''

Also you can combine both solutions if you have a few places where you need to get value and helper function would be more reasonable.

Not sure that you actually need a decorator for your problem.