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-rwxr-xr-xbin/spack9
1 files changed, 6 insertions, 3 deletions
diff --git a/bin/spack b/bin/spack
index e979e2af64..24db0be9b1 100755
--- a/bin/spack
+++ b/bin/spack
@@ -10,9 +10,12 @@
# Following line is a shell no-op, and starts a multi-line Python comment.
# See https://stackoverflow.com/a/47886254
""":"
-# prefer python3, then python, then python2
-for cmd in python3 python python2; do
- command -v > /dev/null $cmd && exec $cmd $0 "$@"
+# prefer SPACK_PYTHON environment variable, python3, python, then python2
+for cmd in "${SPACK_PYTHON:-}" python3 python python2; do
+ if command -v > /dev/null "$cmd"; then
+ export SPACK_PYTHON="$(command -v "$cmd")"
+ exec "${SPACK_PYTHON}" "$0" "$@"
+ fi
done
echo "==> Error: spack could not find a python interpreter!" >&2