Why Python Makes you "Close" Things (And What Happens When You Don't)
Every open() is a debt. Here's what happens when you don't pay it back
Mar 27, 20268 min read40

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Series
A five-part series on Python context managers, built for developers coming from JavaScript. We start with the resource leak problem, work through the with statement, open(), generator functions, and building your own context managers, then finish with real-world usage across popular frameworks.
Every open() is a debt. Here's what happens when you don't pay it back

One keyword. One argument. Zero resource leaks.

A function that remembers where it left off changes everything.

The with statement isn't magic. It's just two method calls wrapped in a try/finally.
