From d0560ef6fe2b952cda18cd811d39da61506e980c Mon Sep 17 00:00:00 2001
From: Antoine Pitrou <antoine@python.org>
Date: Mon, 19 Feb 2024 14:02:08 +0100
Subject: [PATCH] GH-40112: [CI][Python] Ensure CPython is selected, not PyPy

Sometimes, mamba might select PyPy over CPython in certain environment upgrade/downgrade scenarios.
---
 ci/docker/conda-python.dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ci/docker/conda-python.dockerfile b/ci/docker/conda-python.dockerfile
index 5d37c53386e7d..6f05d83c8a1dc 100644
--- a/ci/docker/conda-python.dockerfile
+++ b/ci/docker/conda-python.dockerfile
@@ -28,7 +28,7 @@ COPY ci/conda_env_python.txt \
 RUN mamba install -q -y \
         --file arrow/ci/conda_env_python.txt \
         $([ "$python" == $(gdb --batch --eval-command 'python import sys; print(f"{sys.version_info.major}.{sys.version_info.minor}")') ] && echo "gdb") \
-        python=${python} \
+        "python=${python}=*_cpython" \
         nomkl && \
     mamba clean --all