Importing all the subnames of a module is easily done with globs but if you also want to import the module, then you need 2 separate lines to do so:

use my_mod::*;
use my_mod;

Without globs it's not an issues:

use my_mod::{self, foo, bar, baz};

It would be convenient to allow globs to import the module on the same line as well. Here are some possible syntaxes which (I think) could be understandable:

use my_mod::{self, *};
use my_mod::+;

+ is mainly because * and + are common with globs. + typically means one or more while * is any number of elements so they aren't exactly similar but it doesn't seem too unusual.