initial creation

py3interm/EXAMPLES/sort_holmes.py

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+#!/usr/bin/env python
+"""Sort titles, ignoring leading articles"""
+books = [
+    "A Study in Scarlet",
+    "The Sign of the Four",
+    "The Hound of the Baskervilles",
+    "The Valley of Fear",
+    "The Adventures of Sherlock Holmes",
+    "The Memoirs of Sherlock Holmes",
+    "The Return of Sherlock Holmes",
+    "His Last Bow",
+    "The Case-Book of Sherlock Holmes",
+]
+
+
+def strip_articles(title):  # <.>
+    title = title.lower()
+    for article in 'a ', 'an ', 'the ':
+        if title.startswith(article):
+            title = title[len(article):]  # <.>
+            break
+    return title
+
+
+for book in sorted(books, key=strip_articles):  # <.>
+    print(book)