Working with files in Python is pretty easy. But there’s a common mistake that can sneak into your code. Not closing the file ...

Note that if you provide only a version number, and not a bitness indicator, you’ll default to whichever version of Python is native to your machine’s processor type.

As of Python 3.14, the lazy evaluation of annotations is the default behavior. You still can use the above code without the __future__ import but in the future, it may generate deprecation warnings.