much simpler counting script

source/count.py

@@ -0,0 +1,30 @@
+from collections import defaultdict
+import click
+
+
+@click.command()
+@click.argument("path", type=click.Path(exists=True))
+def main(path):
+    """
+    Count the number of times each word appears in a file and print 10 most common.
+    """
+    delimiters = ". , ; : ? $ @ ^ < > # % ` ! * - = ( ) [ ] { } / \" '".split()
+    counts = defaultdict(int)
+
+    for line in open(path, "r").readlines():
+
+        # replace all delimiters with spaces
+        for delimiter in delimiters:
+            line = line.replace(delimiter, " ")
+
+        # split the lowercased line into words and increase count
+        for word in line.lower().split():
+            counts[word] += 1
+
+    # print 10 most common words
+    for word, count in sorted(counts.items(), key=lambda x: x[1], reverse=True)[:10]:
+        print(word, count)
+
+
+if __name__ == "__main__":
+    main()