What do you mean?

> When tested for truth, only false and nil evaluate to a false value. Everything else is true (including 0, 0.0, "", and []).

In ruby only `false` and `nil` evaluate to false values. 0, [], "" all evaluate to true when used in `if` statements. In python (just like in C and JS) many things evaluate to false (including 0, 0.0, "", and []).