https://dibi8.com/tags/patterns/ Recent content in Patterns on 免费白票 https://dibi8.com/og-default.png https://dibi8.com/og-default.png Hugo en-us Sun, 03 May 2026 10:00:00 +0800 https://dibi8.com/posts/python-context-managers-the-three-cases-you-actually-need/ Sun, 03 May 2026 10:00:00 +0800 https://dibi8.com/posts/python-context-managers-the-three-cases-you-actually-need/ Most tutorials show the trivial <code>with open(...)</code> example and stop. Here are the three patterns I actually reach for in real code, and the failure modes each one prevents.