INTERNAL ERROR: Black produced code that is not equivalent to the source

[ryank231231]

Describe the bug

Formatting the code snippet below produces an internal error.

To Reproduce

Format the following code snippet:

foo(
    bar()    # fmt: skip
  + bar()    # fmt: skip
)

The resulting error is:

INTERNAL ERROR: Black 24.10.1.dev3+g9995bff on Python (CPython) 3.12.5 produced code that is not equivalent to the source. Please report a bug on https://github.com/psf/black/issues. This diff might be helpful: /tmp/blk_vu09qp1g.log

Log:

INTERNAL ERROR: Black 24.10.1.dev3+g9995bff on Python (CPython) 3.12.5 produced code that is not equivalent to the source.  Please report a bug on https://github.com/psf/black/issues.  This diff might be helpful: /tmp/blk_vu09qp1g.log

--- src
+++ dst
@@ -2,41 +2,22 @@
     body=
     Expr(
         value=
         Call(
             args=
-            BinOp(
-                left=
-                Call(
-                    args=
-                    func=
-                    Name(
-                        ctx=
-                        Load(
-                        )  # /Load
-                        id=
-                        'bar',  # str
-                    )  # /Name
-                    keywords=
-                )  # /Call
-                op=
-                Add(
-                )  # /Add
-                right=
-                Call(
-                    args=
-                    func=
-                    Name(
-                        ctx=
-                        Load(
-                        )  # /Load
-                        id=
-                        'bar',  # str
-                    )  # /Name
-                    keywords=
-                )  # /Call
-            )  # /BinOp
+            Call(
+                args=
+                func=
+                Name(
+                    ctx=
+                    Load(
+                    )  # /Load
+                    id=
+                    'bar',  # str
+                )  # /Name
+                keywords=
+            )  # /Call
             func=
             Name(
                 ctx=
                 Load(
                 )  # /Load

Expected behavior

The lines should be left untouched.

Environment

• Black's version: Black 24.10.1.dev3+g9995bff
• OS and Python version: Python (CPython) 3.12.5

Can also be reproduced on https://black.vercel.app/?version=main&state=_Td6WFoAAATm1rRGAgAhARYAAAB0L-Wj4ADHAGZdAD2IimZxl1N_WlkOE2WKO8q04xFLHliTY02DINaThb5NmXp3LURBIVoPx1hVWZbZyQHzS7z4xwAjKn-Mq7mHuHTZTmuDTTSwvMjOpdZEDkCdYF5Qlw2K-7fLc9LT6VrsBXcNyBZpZgAAANIVr-TpMphLAAGCAcgBAABg5HYfscRn-wIAAAAABFla .

[hauntsaninja]

Black 24.10.1.dev3+g9995bff

Hmm, we should ban running on 3.12.5 as of #4447 , because an upstream memory safety issue can cause AST safety checks to fail. Do you have a local repro, if so, could you figure out why the check against 3.12.5 isn't working for you?

Looks like the issue is unrelated to that, though. Probably a duplicate of #3608

[ryank231231]

Hmm, we should ban running on 3.12.5 as of #4447, because an upstream memory safety issue can cause AST safety checks to fail.

Just to clarify, Python 3.12.5 was being used in the playground, and I was able to reproduce the same issue locally as well. My local setup uses Black 24.10.0 and CPython 3.11.2.

Do you have a local repro? If so, could you figure out why the check against 3.12.5 isn't working for you?

Yes, I was able to reproduce the issue locally with Black 24.10.0 and CPython 3.11.2. The same internal error occurs with the provided code snippet.