[issue33754] f-strings should be part of the Grammar

Eric V. Smith added the comment: Just some notes to consider before work starts on this in earnest: We need to decide what sort of changes we'll accept, if any. For at least the first round of this, I'm okay with "absolutely no change will be acceptable". For example, here's a good change

[issue33754] f-strings should be part of the Grammar

Change by Lysandros Nikolaou : -- nosy: +lys.nikolaou ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue33754] f-strings should be part of the Grammar

Raymond Hettinger added the comment: I share Eric's concern about "unknowingly changing the behavior of f-strings." -- nosy: +rhettinger ___ Python tracker ___

[issue33754] f-strings should be part of the Grammar

Change by Eric V. Smith : -- versions: +Python 3.10 -Python 3.8 ___ Python tracker ___ ___ Python-bugs-list mailing list

[issue33754] f-strings should be part of the Grammar

Change by Batuhan : -- nosy: +BTaskaya ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue33754] f-strings should be part of the Grammar

Eric V. Smith added the comment: I'm not completely opposed to it, but I need to understand the benefits and side effects. And I wouldn't exactly describe the multiple passes over the string as "parsing", but I see your point. -- ___ Python

[issue33754] f-strings should be part of the Grammar

David Halter added the comment: As I wrote before, I'm not trying to change anything about the f-string behavior. It is a refactoring. If anyone wants to change the behavior, I feel like they should probably write a PEP anyway. I personally don't like that f-strings get parsed multiple

[issue33754] f-strings should be part of the Grammar

Eric V. Smith added the comment: What is the goal here? Are you just trying to simplify ast.c? My concern is that there are many, many edge cases, and that you'll be unknowingly changing the behavior of f-strings. One of the goals of the f-string specification is for a simple third-party

[issue33754] f-strings should be part of the Grammar

Change by Berker Peksag : -- nosy: +eric.smith ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue33754] f-strings should be part of the Grammar

New submission from David Halter : Currently f-strings are a bit of a hack. They certainly work very well for users, but they are implemented in ast.c and therefore not part of the Python grammar and the tokenizer. I want to change this. I wrote an alternative implementation of f-strings in