Avoid Wildcard Imports

[ldo]

It would be easier for maintainability to avoid things like

from ctypes import *

I know the examples in the documentation use this, but it’s not a good idea.

I do realize that typing ctypes.c_int, ctypes.POINTER etc rapidly gets old. My compromise is to use a short form for the module name:

import ctypes as ct

Now you can write ct.c_int, ct.POINTER etc, which is a bit better.

[DiagonalArg]

@ldo / I'm not python master, to say the least, but I just want radicale-decsync to work. So I fixed that and some other things, here.