u4

u4/word_count.py

@@ -0,0 +1,15 @@
+def count_words(sentence):
+    sentence = sentence.lower()
+    cleaned = ""
+    for symbol in sentence:
+        if symbol.isalnum() or symbol == "'":
+          cleaned += symbol
+        else:
+            cleaned += " "
+
+    counts = {}
+    for word in cleaned.split():
+        word = word.strip("'")
+        if word:
+            counts[word] = counts.get(word, 0) + 1
+    return counts