[CI][RFC] Replace black-jupyter with ruff-format (#37210)

Co-authored-by: Alison Shao <a.shao@wustl.edu>

.claude/skills/mechanical-refactor-verify/scripts/tests/proof_generator/test_infer_moves.py

@@ -370,12 +370,7 @@ def test_infer_recipe_module_level_def_shadowed_by_method_name(repo: Path) -> No
                 "        return foo(x=self.x)\n"
             ),
             "util.py": (
-                "def keep():\n"
-                "    return 1\n"
-                "\n"
-                "\n"
-                "def foo(*, x):\n"
-                "    return x + 1\n"
+                "def keep():\n    return 1\n\n\ndef foo(*, x):\n    return x + 1\n"
             ),
         },
     )
@@ -437,9 +432,7 @@ def test_infer_recipe_move_leaving_a_forwarding_delegate(repo: Path) -> None:
     _write(
         repo,
         **{
-            "model.py": (
-                "class M:\n" "    def work(self, x):\n" "        return x + 1\n"
-            ),
+            "model.py": ("class M:\n    def work(self, x):\n        return x + 1\n"),
             "comp.py": "class C:\n    def keep(self):\n        return 1\n",
         },
     )
@@ -448,9 +441,7 @@ def test_infer_recipe_move_leaving_a_forwarding_delegate(repo: Path) -> None:
         repo,
         **{
             "model.py": (
-                "class M:\n"
-                "    def work(self, x):\n"
-                "        return self.comp.work(x)\n"
+                "class M:\n    def work(self, x):\n        return self.comp.work(x)\n"
             ),
             "comp.py": (
                 "class C:\n"

.claude/skills/mechanical-refactor-verify/scripts/tests/reproduction_cli/cli_testlib.py

@@ -2,13 +2,9 @@ import subprocess
 from pathlib import Path
 
 _PASSING_PROOF = (
-    "import sys\n"
-    'print("PASS: reproduces the commit byte-for-byte.")\n'
-    "sys.exit(0)\n"
-)
-_FAILING_PROOF = (
-    "import sys\n" 'print("RESIDUAL (2 lines):\\n+x\\n-y")\n' "sys.exit(1)\n"
+    'import sys\nprint("PASS: reproduces the commit byte-for-byte.")\nsys.exit(0)\n'
 )
+_FAILING_PROOF = 'import sys\nprint("RESIDUAL (2 lines):\\n+x\\n-y")\nsys.exit(1)\n'
 
 
 def _git(repo: Path, *args: str) -> str:

.claude/skills/mechanical-refactor-verify/scripts/tests/reproduction_utils/test_add_imports.py

@@ -110,13 +110,7 @@ def test_add_typechecking_import_inserts_in_block(tmp_path: Path) -> None:
 def test_add_typechecking_import_creates_missing_block(tmp_path: Path) -> None:
     """With no TYPE_CHECKING block, one is created after the trailing module import."""
     (tmp_path / "m.py").write_text(
-        "from typing import TYPE_CHECKING\n"
-        "\n"
-        "from a import X\n"
-        "\n"
-        "\n"
-        "def f():\n"
-        "    pass\n"
+        "from typing import TYPE_CHECKING\n\nfrom a import X\n\n\ndef f():\n    pass\n"
     )
     r = Repro("b", "t").add_typechecking_import("m.py", "from b import Y")
     _apply(r, tmp_path)
@@ -215,12 +209,7 @@ def test_add_typechecking_import_raises_without_imports(tmp_path: Path) -> None:
 def test_add_typechecking_import_drops_a_lone_pass_placeholder(tmp_path: Path) -> None:
     """Populating a `pass`-only TYPE_CHECKING block replaces the placeholder."""
     (tmp_path / "m.py").write_text(
-        "from typing import TYPE_CHECKING\n"
-        "\n"
-        "if TYPE_CHECKING:\n"
-        "    pass\n"
-        "\n"
-        "x = 1\n"
+        "from typing import TYPE_CHECKING\n\nif TYPE_CHECKING:\n    pass\n\nx = 1\n"
     )
     r = Repro("b", "t").add_typechecking_import("m.py", "from b import Y")
     _apply(r, tmp_path)

.claude/skills/mechanical-refactor-verify/scripts/tests/reproduction_utils/test_extract_symbols_to_new_module.py

@@ -111,11 +111,7 @@ def test_extract_symbols_to_new_module_drops_relocated_assigns(tmp_path: Path) -
         "    return _FLAG\n"
     )
     header = (
-        "from __future__ import annotations\n"
-        "\n"
-        "import os\n"
-        "\n"
-        "_FLAG = os.cpu_count()\n"
+        "from __future__ import annotations\n\nimport os\n\n_FLAG = os.cpu_count()\n"
     )
     r = Repro("b", "t").extract_symbols_to_new_module(
         "src.py",

.claude/skills/mechanical-refactor-verify/scripts/tests/reproduction_utils/test_move_assign.py

@@ -19,13 +19,7 @@ def test_move_assign_relocates_a_module_constant(tmp_path: Path) -> None:
     _apply(r, tmp_path)
     assert "LIMIT" not in (tmp_path / "src.py").read_text().split("def stay")[0]
     assert (tmp_path / "dst.py").read_text() == (
-        "import sys\n"
-        "\n"
-        "LIMIT = 480  # seconds\n"
-        "\n"
-        "\n"
-        "def keep():\n"
-        "    return 1\n"
+        "import sys\n\nLIMIT = 480  # seconds\n\n\ndef keep():\n    return 1\n"
     )
 
 
@@ -50,13 +44,7 @@ def test_move_assign_relocates_an_annotated_constant(tmp_path: Path) -> None:
     _apply(r, tmp_path)
     assert "LIMIT" not in (tmp_path / "src.py").read_text().split("def stay")[0]
     assert (tmp_path / "dst.py").read_text() == (
-        "import sys\n"
-        "\n"
-        "LIMIT: int = 480\n"
-        "\n"
-        "\n"
-        "def keep():\n"
-        "    return 1\n"
+        "import sys\n\nLIMIT: int = 480\n\n\ndef keep():\n    return 1\n"
     )
 
 

.claude/skills/mechanical-refactor-verify/scripts/tests/reproduction_utils/test_move_symbol.py

@@ -260,13 +260,7 @@ def test_move_symbol_dedent_leaves_string_literal_interior_lines(
     )
     _apply(r, tmp_path)
     assert (tmp_path / "dst.py").read_text() == (
-        "import os\n"
-        "\n"
-        "def foo(self):\n"
-        "    s = '''raw\n"
-        "    partial\n"
-        "'''\n"
-        "    return s\n"
+        "import os\n\ndef foo(self):\n    s = '''raw\n    partial\n'''\n    return s\n"
     )