Use the builtin set() instead of sets.Set()
tree0c943be310ee9635499c34c463b975799009cfa8
-rw-r--r-- 75 .gitignore
-rw-r--r-- 269 .mailmap
-rw-r--r-- 79 AUTHORS
-rw-r--r-- 17992 COPYING
drwxr-xr-x - Documentation
-rw-r--r-- 292 INSTALL
-rw-r--r-- 416 MANIFEST.in
-rw-r--r-- 448 Makefile
-rw-r--r-- 902 README
-rw-r--r-- 1100 TODO
drwxr-xr-x - contrib
drwxr-xr-x - debian
drwxr-xr-x - examples
-rw-r--r-- 23 setup.cfg
-rwxr-xr-x 987 setup.py
-rwxr-xr-x 1504 stg
-rwxr-xr-x 1520 stg-dbg
-rwxr-xr-x 1796 stg-prof
drwxr-xr-x - stgit
drwxr-xr-x - t
drwxr-xr-x - templates