[Tutor] How to determine if every character in one string is in another string?
kent37 at tds.net
Sat Jul 21 06:04:58 CEST 2007
Terry Carroll wrote:
> Is there a straightforward way to find out if all characters in one string
> are present in a second string?
> Basically, I have a string s, and I want to print it out only if every
> character in it is printable (because I accidentally brought my PC loudly
> to its knees printing a few thousand BEL characters when trying to debug
> something). A workable test for me is whether every character in the
> string to be printed is in string.printable.
> Right now I'm doing:
> def printable(s):
> import string
> return [x for x in s if x not in string.printable] == 
My first thought is to use sets (not tested):
_printable = set(string.printable)
Using string.translate() might be very fast. Something like
all_chars = ''.join(chr(i) for i in range(255))
return not s.translate(all_chars, string.printable)
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