SyntaxError when using dict key in fstring

[Samisafool]

BPO	46305
Nosy	@ericvsmith, @sobolevn, @Samisafool
Files	test.py

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2022-01-08.08:55:38.491>
created_at = <Date 2022-01-08.07:54:07.259>
labels = ['interpreter-core', '3.8', '3.9', '3.10', 'invalid', 'type-crash']
title = 'SyntaxError when using dict key in fstring'
updated_at = <Date 2022-01-08.19:09:43.810>
user = 'https://github.com/Samisafool'

bugs.python.org fields:

activity = <Date 2022-01-08.19:09:43.810>
actor = 'eric.smith'
assignee = 'none'
closed = True
closed_date = <Date 2022-01-08.08:55:38.491>
closer = 'Samisafool'
components = ['Interpreter Core']
creation = <Date 2022-01-08.07:54:07.259>
creator = 'Samisafool'
dependencies = []
files = ['50550']
hgrepos = []
issue_num = 46305
keywords = []
message_count = 5.0
messages = ['410079', '410081', '410082', '410084', '410105']
nosy_count = 3.0
nosy_names = ['eric.smith', 'sobolevn', 'Samisafool']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'crash'
url = 'https://bugs.python.org/issue46305'
versions = ['Python 3.8', 'Python 3.9', 'Python 3.10']

[Samisafool]

SyntaxError when using dict key in fstring

Attached is a python file where this bug is visible.
The error is different on CPython 3.8 and 3.9/3.10, interestingly.
Occurs on CPython 3.8-10 and PyPy 3.8 7.3.7

Not sure which component to select, never filed a python bug report before. Hopefully this is correct.

[sobolevn]

Can you please try this:

dict1 = {
        "key1": "test"
        }

print(dict1["key1"])

print(f"key1 is {dict1['key1']}!")

The problem with your code is that dict1["key1"] used the same quotes as f"".

[Samisafool]

Is that intended behaviour? It works though.

[Samisafool]

Huh, it does seem to be intentional.

[ericvsmith]

Yes, the behavior is intentional. It might be relaxed in the future.