Claude 5 for Python Developers: What 1M Context Actually Changes
Most coverage of Claude 5's 1M context window focuses on the number. "You can fit 700,000 lines of Python." "Analyze your entire codebase in one prompt." That's true. It's also not the interesting part. The interesting part is what 1M context changes about how you prompt. Because the failure mode isn't "the model can't fit your code" — it's "you handed the model 200,000 tokens and got back a three-paragraph summary that didn't actually help you." Context window and useful output are not the sam…