Sort the ordinary Python imports into alphabetical order (by module
name, rather than by import, if I'm only taking one or two symbols).
Move the main extension import into its own section, because it's going
to grow.
from __future__ import with_statement
-import _base
-import types as _types
from binascii import hexlify as _hexify, unhexlify as _unhexify
from contextlib import contextmanager as _ctxmgr
-import sys as _sys
from struct import pack as _pack
+import sys as _sys
+import types as _types
+
+###--------------------------------------------------------------------------
+### Import the main C extension module.
+
+import _base
###--------------------------------------------------------------------------
### Basic stuff.