Auto-close curly braces within f-strings and t-strings

[DECROMAX]

Description

I have noticed that curly braces do not automatically close within f-strings (or t-strings)
The standard expectation in most modern text editors is that typing an opening brace { will automatically insert the closing brace }. The lack of this feature within the editor disrupts flow .

Suggested solution

When a user is inside an f-string or a t-string and types {, the editor should automatically:

1. Insert the closing }
2. Place the cursor between the braces: { | }

Are you willing to submit a PR?

• Yes

Alternatives

Typing } 😄

Additional context

Impact: Low/Medium (Quality of Life improvement).

Environment:

• Chrome Version 143.0.7499.169

• Marimo Verson 0.18.4

• Python 3.12

[akshayka]

Thanks for the issue. We are open to contributions for this; perhaps the simplest solution would be to always insert the closing }, regardless if the string is an f-string.