Python: try statement in a single line

Question

Is there a way in python to turn a try/except into a single line?

something like...

b = \'some variable\'
a = c | b #try statement goes here
<         


        

Answer 1

Version of poke53280 answer with limited expected exceptions.

def try_or(func, default=None, expected_exc=(Exception,)):
    try:
        return func()
    except expected_exc:
        return default

and it could be used as

In [2]: try_or(lambda: 1/2, default=float('nan'))
Out[2]: 0.5

In [3]: try_or(lambda: 1/0, default=float('nan'), expected_exc=(ArithmeticError,))
Out[3]: nan

In [4]: try_or(lambda: "1"/0, default=float('nan'), expected_exc=(ArithmeticError,))
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
[your traceback here]
TypeError: unsupported operand type(s) for /: 'str' and 'int'

In [5]: try_or(lambda: "1"/0, default=float('nan'), expected_exc=(ArithmeticError, TypeError))
Out[5]: nan