On 4/17/2018 1:03 PM, Yury Selivanov wrote:
Using inline assignments in "while" statements is neat, but how often do we use "while" statements?
Beginners commonly write game and entry loops and commonly stumble over the need to write an infinite loop and a half. The evidence is on both python-list and StackOverflow. Reducing 4 lines to 1 here reduces complexity and, I think, increases clarity.
2. We all try to follow the Python zen when we are designing new language features. With the exception of string formatting Python follows the "There should be one-- and preferably only one -- obvious way to do it." line.
There is currently no way, not one way, to bind a name to an expression for use within the same statement. I recommended to Chris that he remove from the PEP everything but this. No other targets. No chaining. (And no redefining class-scope comprehensions.) This would remove all but the unavoidable overlap and reduce the added complexity of what people could write.
I simply don't see a very compelling use case to have two forms of assignment in Python.
We already have more than two ;-). -- Terry Jan Reedy _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
