more consistent get_size()
treeee2f6b30eeacf613c953f01e50ca0b20a0cc35c6
-rw-r--r-- 13 .gitignore
-rw-r--r-- 11229 shuffle.py
-rwxr-xr-x 163 test.sh
-rwxr-xr-x 2093 update_shuffle.py