chore: import upstream snapshot with attribution

mpmath/tests/test_version_frozen.sh

@@ -0,0 +1,51 @@
+#!/bin/bash
+#
+# Test that the version number is provided correctly in a frozen (bundled)
+# executable (see #1044).
+
+set -e
+
+# Get the directory of the current repository
+MPMATH_DIR="$(realpath "$(dirname "$0")/../../")"
+echo "Repo mpmath directory: $MPMATH_DIR"
+
+echo "Install requirements..."
+python3 -m pip install build pyinstaller
+
+echo "Building the source distribution from the local repo..."
+python3 -m build --sdist
+
+# Find and install the generated tarball
+TARBALL=$(ls -t dist/*.tar.gz | head -1)
+echo "Generated tarball: $TARBALL"
+
+echo "Installing mpmath from tarball..."
+pip install dist/"$(basename $TARBALL)"
+
+TEMP_DIR=$(mktemp -d)
+echo "Created temporary directory: $TEMP_DIR"
+cd "$TEMP_DIR"
+
+# Create version_script.py that prints the package version
+cat << EOF > version_script.py
+import mpmath
+print(mpmath.__version__)
+EOF
+
+# Save local version for later comparison
+DIRECT_VERSION="$(python3 -m mpmath --version)"
+
+echo "Building version_script with PyInstaller..."
+pyinstaller --onefile --clean version_script.py
+
+echo "Run frozen executable and extract the version from the output..."
+FROZEN_VERSION="$(./dist/version_script 2>&1)"
+
+if [ "$DIRECT_VERSION" == "$FROZEN_VERSION" ]; then
+    echo "Test passed: Version matches in frozen (bundled) executable."
+else
+    echo "Test failed: Version mismatch."
+    echo "Direct version: $DIRECT_VERSION"
+    echo "Frozen version: $FROZEN_VERSION"
+    exit 1
+fi