non printable (moving away from Perl)

[Fillmore]

On 03/11/2016 07:13 AM, Wolfgang Maier wrote:
> One lesson for Perl regex users is that in Python many things can be solved without regexes.
> How about defining:
>
> printable = {chr(n) for n in range(32, 127)}
>
> then using:
>
> if (set(my_string) - set(printable)):
>      break

seems computationally heavy. I have a file with about 70k lines, of which only 20 contain "funny" chars.

ANy idea on how I can create a script that compares Perl speed vs. Python speed
in performing the cleaning operation?