added comments

Author: ishitagupta8720

CountMillionCharacter.py

@@ -8,7 +8,8 @@
 """
 import re
 
-pattern = re.compile("\W")
+pattern = re.compile("\W") #re is used to compile the expression more than once
+#wordstring consisting of a million characters
 wordstring = '''SCENE I. Yorkshire. Gaultree Forest.
 Enter the ARCHBISHOP OF YORK, MOWBRAY, LORD HASTINGS, and others
 ARCHBISHOP OF YORK
@@ -293,17 +294,17 @@
 Before, and greet his grace: my lord, we come.
 Exeunt'''
 
-wordlist = wordstring.split()
+wordlist = wordstring.split() #splits each word with a space
 
 for x, y in enumerate(wordlist):
-    special_character = pattern.search(y[-1:])
+    special_character = pattern.search(y[-1:]) #searches for a pattern in the string
     try:
-        if special_character.group():
+        if special_character.group():  #returns all matching groups
             wordlist[x] = y[:-1]
     except:
         continue
 
-wordfreq = [wordlist.count(w) for w in wordlist]
+wordfreq = [wordlist.count(w) for w in wordlist]  #counts frequency of a letter in the list
 
 print("String\n {} \n".format(wordstring))
 print("List\n {} \n".format(str(wordlist)))