Add solution to problem 4

thinkcspy/Chapter-12-Exercises/Problem4.py

@@ -0,0 +1,35 @@
+aliceBook = open("alice_in_wonderland.txt", "r")
+aliceDict = {}
+
+for line in aliceBook:
+    words = line.split()
+
+    for word in words:
+        word = word.lower()
+        newWord = ""
+
+        for char in word:
+            if char.isalpha():
+                newWord += char
+
+        if newWord != "":
+            word = newWord            
+
+        if word not in aliceDict:
+            aliceDict[word] = 1
+        else:
+            aliceDict[word] += 1
+
+aliceList = list(aliceDict.items())
+
+maxnum = 0
+maxWord = ""
+
+for item in aliceList:
+    if len(item[0]) > maxnum:
+        maxnum = len(item[0])
+        maxWord = item[0]
+
+print(maxWord, "-", maxnum)
+
+aliceBook.close()