python - can lambda have more than one return

问题

I know lambda doesn't have a return expression. Normally

def one_return(a):
    #logic is here
    c = a + 1
    return c

can be written:

lambda a : a + 1

How about write this one in a lambda function:

def two_returns(a, b):
    # logic is here
    c = a + 1
    d = b * 1
    return c, d

回答1:

Yes, it's possible. Because an expression such as this at the end of a function:

return a, b

Is equivalent to this:

return (a, b)

And there, you're really returning a single value: a tuple which happens to have two elements. So it's ok to have a lambda return a tuple, because it's a single value:

lambda a, b: (a, b) # here the return is implicit

回答2:

Sure:

lambda a, b: (a + 1, b * 1)

回答3:

what about:

lambda a,b: (a+1,b*1)

来源：https://stackoverflow.com/questions/16674004/python-can-lambda-have-more-than-one-return