Question

Consider the following code, which simply calls a method on each member of a list:

class Demo:
    def make_change(self):
        pass

foo = [Demo(), Demo(), Demo()]
map(lambda x: x.make_change(), foo)

Is there a way to accomplish this without the long-winded lambda syntax? For example, in Scala, something similar to map(_.make_change(), foo) works. Does Python have an equivalent?

Answer 1

It’s not very pythonic to use map just for side-effects

so why not

for item in foo:
    item.make_change()

This will run faster than using map

you can put it on one line if you insist, but I wouldn’t

for item in foo:item.make_change()