re.sub erroring with “Expected string or bytes-like object”

Question

I have read multiple posts regarding this error, but I still can\'t figure it out. When I try to loop through my function:

def fix_Plan(location):
    letter         


        

Answer 1

I suppose better would be to use re.match() function. here is an example which may help you.

import re
import nltk
from nltk.tokenize import word_tokenize
nltk.download('punkt')
sentences = word_tokenize("I love to learn NLP \n 'a :(")
#for i in range(len(sentences)):
sentences = [word.lower() for word in sentences if re.match('^[a-zA-Z]+', word)]  
sentences