Black cannot parse valid code

[CanePlayz]

Describe the bug

Black hits me with this error when trying to format something

error: cannot format ...\test.ipynb: Cannot parse: 4:31: plt.savefig(f"output/_{config["year"].replace("/", "_")}.png", bbox_inches="tight")

Oh no! 💥 💔 💥
1 file failed to reformat.

To Reproduce

Take the code below and try to format it from the command line

For example, take this code:

import matplotlib.pyplot as plt

config = {"year": "2024"}
plt.savefig(f"output/_{config["year"].replace("/", "_")}.png", bbox_inches="tight")

And run it with these arguments:

$ black file.ipynb

Expected behavior

Parse the code fine as it is valid Python code

Environment

• Black's version: 24.3.0
• OS and Python version: Windows 11, Python 3.12.2

Additional context

[AlexWaygood]

Hi! This issue is a duplicate of #3746. Note that Python will actually fail to parse your code unless you're using Python 3.12+; this syntax is a pretty new feature :-)

[CanePlayz]

@AlexWaygood Ah, I didn't see that it was related to that at first, thanks! :)