From dac40a071a5c6be2e5495a26f2752a0871ddbb7e Mon Sep 17 00:00:00 2001
From: Padraic Fanning <fanninpm@miamioh.edu>
Date: Sun, 11 Jan 2026 15:35:45 -0500
Subject: [PATCH 1/4] Make whats_left.py compile with same settings as before

---
 .github/workflows/ci.yaml | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index b626503c5b4..d1f0b3427df 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -422,8 +422,14 @@ jobs:
         run: |
           target/release/rustpython -m venv testvenv
           testvenv/bin/rustpython -m pip install wheel
-      - name: Check whats_left is not broken
-        run: python -I scripts/whats_left.py
+      - if: runner.os != 'macOS'
+        name: Check whats_left is not broken
+        shell: bash
+        run: python -I scripts/whats_left.py --features "$(sed -e 's/--[^ ]*//g' <<< "${{ env.CARGO_ARGS }}" | tr -d '[:space:]'),threading,jit"
+      - if: runner.os == 'macOS' # TODO fix jit on macOS
+        name: Check whats_left is not broken (macOS)
+        shell: bash
+        run: python -I scripts/whats_left.py --features "$(sed -e 's/--[^ ]*//g' <<< "${{ env.CARGO_ARGS }}" | tr -d '[:space:]'),threading" # no jit on macOS for now
 
   lint:
     name: Check Rust code with clippy

From c930055614e03d6b1c592e9e5f5272c9c9e0b27e Mon Sep 17 00:00:00 2001
From: Padraic Fanning <fanninpm@miamioh.edu>
Date: Mon, 19 Jan 2026 21:39:37 -0500
Subject: [PATCH 2/4] Add --no-default-features to scripts/whats_left.py

---
 scripts/whats_left.py | 33 +++++++++++++++++++++------------
 1 file changed, 21 insertions(+), 12 deletions(-)

diff --git a/scripts/whats_left.py b/scripts/whats_left.py
index f2019ba4eb1..00db9a0ac5c 100755
--- a/scripts/whats_left.py
+++ b/scripts/whats_left.py
@@ -60,6 +60,11 @@ def parse_args():
         action="store_true",
         help="print output as JSON (instead of line by line)",
     )
+    parser.add_argument(
+        "--no-default-features",
+        action="store_true",
+        help="disable default features when building RustPython",
+    )
     parser.add_argument(
         "--features",
         action="store",
@@ -441,19 +446,23 @@ def remove_one_indent(s):
     f.write(output + "\n")
 
 
-subprocess.run(
-    ["cargo", "build", "--release", f"--features={args.features}"], check=True
-)
+cargo_build_command = ["cargo", "build", "--release"]
+if args.no_default_features:
+    cargo_build_command.append("--no-default-features")
+if args.features:
+    cargo_build_command.extend(["--features", args.features])
+
+subprocess.run(cargo_build_command, check=True)
+
+cargo_run_command = ["cargo", "run", "--release"]
+if args.no_default_features:
+    cargo_run_command.append("--no-default-features")
+if args.features:
+    cargo_run_command.extend(["--features", args.features])
+cargo_run_command.extend(["-q", "--", GENERATED_FILE])
+
 result = subprocess.run(
-    [
-        "cargo",
-        "run",
-        "--release",
-        f"--features={args.features}",
-        "-q",
-        "--",
-        GENERATED_FILE,
-    ],
+    cargo_run_command,
     env={**os.environ.copy(), "RUSTPYTHONPATH": "Lib"},
     text=True,
     capture_output=True,

From 7b54963437c98af25dbf4efced64b19ae564d927 Mon Sep 17 00:00:00 2001
From: Padraic Fanning <fanninpm@miamioh.edu>
Date: Mon, 19 Jan 2026 21:40:44 -0500
Subject: [PATCH 3/4] Build RustPython with no default features

---
 .github/workflows/ci.yaml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index d1f0b3427df..79c780c4f85 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -425,11 +425,11 @@ jobs:
       - if: runner.os != 'macOS'
         name: Check whats_left is not broken
         shell: bash
-        run: python -I scripts/whats_left.py --features "$(sed -e 's/--[^ ]*//g' <<< "${{ env.CARGO_ARGS }}" | tr -d '[:space:]'),threading,jit"
+        run: python -I scripts/whats_left.py --no-default-features --features "$(sed -e 's/--[^ ]*//g' <<< "${{ env.CARGO_ARGS }}" | tr -d '[:space:]'),threading,jit"
       - if: runner.os == 'macOS' # TODO fix jit on macOS
         name: Check whats_left is not broken (macOS)
         shell: bash
-        run: python -I scripts/whats_left.py --features "$(sed -e 's/--[^ ]*//g' <<< "${{ env.CARGO_ARGS }}" | tr -d '[:space:]'),threading" # no jit on macOS for now
+        run: python -I scripts/whats_left.py --no-default-features --features "$(sed -e 's/--[^ ]*//g' <<< "${{ env.CARGO_ARGS }}" | tr -d '[:space:]'),threading" # no jit on macOS for now
 
   lint:
     name: Check Rust code with clippy

From 2c9c72d584cafa5613b6ed58e32c1f7fb2561236 Mon Sep 17 00:00:00 2001
From: Padraic Fanning <fanninpm@miamioh.edu>
Date: Mon, 19 Jan 2026 23:04:32 -0500
Subject: [PATCH 4/4] Retrigger CI