Pyrefly is not the first Python type-checking tool from Meta. Previously, the company delivered Pyre, written in OCaml. Pyre ...

How to use template strings in Python 3.14. May 14, 2025 6 mins. feature. The best new features and fixes in Python 3.14. May 7, 2025 7 mins. how-to.

Template strings are currently in beta as part of Python 3.14. The syntax and behavior may change before the final release. This feature is experimental and should not be used in production code yet.

Filter JSON and JSON Lines data with Python syntax. jello is similar to jq in that it processes JSON and JSON Lines data except jello uses standard python dict and list syntax.. JSON or JSON Lines can ...