Set filter and map to use build in funcs

[sergiors]

No description provided.

[coveralls]

Coverage increased (+0.02%) to 94.879% when pulling 5bf2008 on sergiors:master into 70efc62 on jackfirth:master.

[coveralls]

Coverage increased (+0.02%) to 94.879% when pulling 5bf2008 on sergiors:master into 70efc62 on jackfirth:master.

[jackfirth]

What's the advantage of reusing the built-in ones?

[sergiors]

The project do not be responsible for those implementations. I think the better way to code is when you avoid to code.

[jackfirth]

They're one-liners, and the builtin ones aren't an exact match anyway since they return generators instead of lists. I don't think this is worth the effort.