import string
def untokenize(tokens):
	return "".join([" "+i if not i.startswith("'") and i not in string.punctuation else i for i in tokens]).strip()

import string
def untokenize(tokens):
	#Joins all tokens in the list into a single string.
	#If a token doesn't start with an apostrophe and isn't a punctuation mark, add a space in front of it before joining.
	#Then strip the total string so that leading spaces and trailing spaces are removed.
	return "".join([" "+i if not i.startswith("'") and i not in string.punctuation else i for i in tokens]).strip()

Add comment clarifying how it operates.
Add comment clarifying how it operates.
  import string
  def untokenize(tokens):
+ 	#Joins all tokens in the list into a single string.
+ 	#If a token doesn't start with an apostrophe and isn't a punctuation mark, add a space in front of it before joining.
+ 	#Then strip the total string so that leading spaces and trailing spaces are removed.
  	return "".join([" "+i if not i.startswith("'") and i not in string.punctuation else i for i in tokens]).strip()
  
Add comment clarifying how it operates.
## Code Before:
import string
def untokenize(tokens):
	return "".join([" "+i if not i.startswith("'") and i not in string.punctuation else i for i in tokens]).strip()

## Instruction:
Add comment clarifying how it operates.
## Code After:
import string
def untokenize(tokens):
	#Joins all tokens in the list into a single string.
	#If a token doesn't start with an apostrophe and isn't a punctuation mark, add a space in front of it before joining.
	#Then strip the total string so that leading spaces and trailing spaces are removed.
	return "".join([" "+i if not i.startswith("'") and i not in string.punctuation else i for i in tokens]).strip()
