fix?

.github/workflows/tests.yml

@@ -87,7 +87,7 @@ jobs:
           uv pip install --system --no-build-isolation -e ".[dev]" --constraints torch-constraints.txt
           set -o pipefail
           python scripts/unsloth_install.py | bash
-          python scripts/cutcrossentropy_install.py | bash
+          python scripts/cutcrossentropy_install.py --uv | bash
 
       - name: Make sure PyTorch version wasn't clobbered
         run: |
@@ -160,7 +160,7 @@ jobs:
           python -m build --sdist
           uv pip install --system dist/*.tar.gz
           python scripts/unsloth_install.py | sh
-          python scripts/cutcrossentropy_install.py | sh
+          python scripts/cutcrossentropy_install.py --uv | sh
           printf "torch==${{ matrix.pytorch_version }}\n" > torch-constraints.txt
           uv pip install --system ".[dev]" --constraints torch-constraints.txt
 

scripts/cutcrossentropy_install.py

@@ -1,15 +1,19 @@
 """Script to output the correct installation command for cut-cross-entropy."""
 
+from __future__ import annotations
+
 import importlib.util
 import sys
-from shlex import quote
 
 try:
     import torch
-except ImportError as exc:
+except ImportError as exc:  # pragma: no cover - defensive
     raise ImportError("Install torch via `pip install torch`") from exc
+
 from packaging.version import Version as V
 
+USE_UV = "--uv" in sys.argv[1:]
+
 v = V(torch.__version__)
 
 # no cut-cross-entropy support for torch < 2.4.0
@@ -19,14 +23,19 @@ if v < V("2.4.0"):
 
 cce_spec = importlib.util.find_spec("cut_cross_entropy")
 
-python_path = quote(sys.executable)
+UNINSTALL_PREFIX = ""
+if cce_spec:
+    if not importlib.util.find_spec("cut_cross_entropy.transformers"):
+        if USE_UV:
+            UNINSTALL_PREFIX = "uv pip uninstall --system --yes cut-cross-entropy && "
+        else:
+            UNINSTALL_PREFIX = "pip uninstall -y cut-cross-entropy && "
 
-commands = []
-if cce_spec and not importlib.util.find_spec("cut_cross_entropy.transformers"):
-    commands.append(f"uv pip uninstall --python {python_path} cut-cross-entropy")
-
-commands.append(
-    f'uv pip install --python {python_path} "cut-cross-entropy[transformers] @ git+https://github.com/axolotl-ai-cloud/ml-cross-entropy.git@147ea28"'
+installer = "uv pip --system" if USE_UV else "pip"
+command = (
+    f"{installer} install "
+    '"cut-cross-entropy[transformers] '
+    '@ git+https://github.com/axolotl-ai-cloud/ml-cross-entropy.git@147ea28"'
 )
 
-print(" && ".join(commands))
+print(f"{UNINSTALL_PREFIX}{command}")