On Wed, 3 Oct 2018 at 11:45, Eric V. Smith <e...@trueblade.com> wrote:
> On 10/3/2018 3:54 AM, Steven D'Aprano wrote: > > On Tue, Oct 02, 2018 at 08:27:03PM -0400, Eric V. Smith wrote: > > > >> Here’s the idea: for f-strings, we add a !d conversion operator, which > >> is superficially similar to !s, !r, and !a. The meaning of !d is: > >> produce the text of the expression (not its value!), > > > > I SO WANT THIS AS A GENERAL FEATURE, not just for f-strings, it hurts. > > > > Actually what I want is an executable object (a function?) which has the > > AST and text of the expression attached. If putting this into f-strings > > is a first step towards getting this thunk-like thing, then I don't > > need to read any further, I'm +10000 :-) > > I feel your pain, but we're a long way from that. > Maybe we are actually not so far? PEP 563 added functionality for transforming expressions to strings, maybe it can be reused for this purpose? I would love to have this since in my experience I mostly print some (relatively complex) expressions. -- Ivan
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