Removing punctuation and creating a set from words from user input

Question

I was wondering how I might go about removing punctuation from user input and creating a set from the words in the input. So far I have this.

input_set = set(self.entry.get().lower().split(' '))

Answer 1

Use str.translate:

Python2:

>>> from string import punctuation
>>> s = 'sfda%$$sdafd dasf564%^%^, hgghg%#56'
>>> set(s.translate(None, punctuation).split())
set(['hgghg56', 'dasf564', 'sfdasdafd'])

Python3:

from string import punctuation
s = 'sfda%$$sdafd dasf564%^%^, hgghg%#56'
tab = dict.fromkeys(map(ord, punctuation))
print (set(s.translate(tab).split()))

Answer 2

This is an excellent place to use regular expressions:

import re
re.split(r'\W+',str)

depending on what you consider punctuation you may want to change '\W' to a different character class or character group.

Answer 3

1. Remove punctuation: see Best way to strip punctuation from a string in Python

2. Create a set of words: set(sentence.split(' '))