Micro-PEP: str.translate(None) to mean identity translation

[M.E.Farmer]

After I re-read your post in daylight and read your followup the "Aha!"
 hit me .I am a little slow at times. I have always just iterated thru
the badchars and replaced with  "" . What you suggest would be very
nice indeed!
Thanks for the time and explanation, and you too Peter !

For what it is worth +1 ;)

On another note why is maketrans in the string module....
I was a bit lost finding it the first time should it be builtin?
transtable = "abcdefg".maketrans("qwertyu")
Probably missing something.
M.E.Farmer