from __future__ import with_statement
## Standard Python libraries.
-import sys as SYS
-import os as OS
import errno as E
-import time as T
-import unicodedata as UD
import fnmatch as FN
+import optparse as OP
+import os as OS
import re as RX
+import sys as SYS
+import time as T
+import shlex as L
import shutil as SH
-import optparse as OP
import threading as TH
-import shlex as L
+import unicodedata as UD
from math import sqrt, ceil
from contextlib import contextmanager