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+#!/usr/bin/python3
+# https://theweeklychallenge.org/blog/perl-weekly-challenge-255/#TASK2
+#
+# Task 2: Most Frequent Word
+# ==========================
+#
+# You are given a paragraph $p and a banned word $w.
+#
+# Write a script to return the most frequent word that is not banned.
+#
+## Example 1
+##
+## Input: $p = "Joe hit a ball, the hit ball flew far after it was hit."
+##        $w = "hit"
+## Output: "ball"
+##
+## The banned word "hit" occurs 3 times.
+## The other word "ball" occurs 2 times.
+#
+## Example 2
+##
+## Input: $p = "Perl and Raku belong to the same family. Perl is the most
+## popular language in the weekly challenge."
+##        $w = "the"
+## Output: "Perl"
+##
+## The banned word "the" occurs 3 times.
+## The other word "Perl" occurs 2 times.
+#
+############################################################
+##
+## discussion
+##
+############################################################
+#
+# Split the sentence into its words, then count all the words != $w
+
+import re
+from operator import itemgetter
+
+def most_frequent_word(p: str, w: str) -> None:
+    print(f"Input: '{p}', '{w}'")
+    found = {}
+    for word in re.split('\W+', p):
+        if word != w:
+            if word in found:
+                found[word] += 1
+            else:
+                found[word] = 1
+    most = []
+    for key in found.keys():
+        most.append( (key, found[key]) )
+    most.sort(key=itemgetter(1))
+    print(most)
+    print(f"Found the most frequent word to be '{most[-1][0]}'")
+
+most_frequent_word("Joe hit a ball, the hit ball flew far after it was hit.", "hit");
+most_frequent_word("Perl and Raku belong to the same family. Perl is the most" +
+   " popular language in the weekly challenge.", "the");
+