[Python-Dev] Examples for PEP 572 (original) (raw)

Chris Angelico rosuav at gmail.com
Wed Jul 4 09:54:44 EDT 2018

On Wed, Jul 4, 2018 at 11:52 PM, David Mertz <mertz at gnosis.cx> wrote:

On Wed, Jul 4, 2018 at 3:02 AM Chris Angelico <rosuav at gmail.com> wrote:

"Assignment is a statement" -- that's exactly the point under discussion. "del is a statement" -- yes, granted "function and class declarations are statements" -- class, yes, but you have "def" and "lambda" as statement and expression equivalents. "import is a statement" -- but importlib.importmodule exists for a reason I'm going to assume that your term "mutating" there was simply a miswording, and that you're actually talking about name binding, which hitherto occurs only in statements. Yes, this is true. Nope, not actually:

del foo print(globals().update({'foo':42}), foo) None 42

Try it inside a function though.

ChrisA

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