@@ -625,7 +625,6 @@ check_py_version() {
python=
first_python=
if test -z "${PYTHON}"; then
- explicit_python=no
# A bare 'python' is traditionally python 2.x, but some distros
# have it as python 3.x, so check in both places.
for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7 python3.6; do
@@ -644,7 +643,6 @@ else
# Same as above, but only check the environment variable.
has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
python=$(command -v "$PYTHON")
- explicit_python=yes
if check_py_version "$python"; then
# This one is good.
first_python=
@@ -729,7 +727,7 @@ for opt do
;;
--install=*)
;;
- --python=*) python="$optarg" ; explicit_python=yes
+ --python=*) python="$optarg"
;;
--skip-meson) skip_meson=yes
;;
@@ -1090,8 +1088,34 @@ if ! check_py_version "$python"; then
"Use --python=/path/to/python to specify a supported Python."
fi
-# Resolve PATH + suppress writing compiled files
-python="$(command -v "$python") -B"
+# Resolve PATH
+python="$(command -v "$python")"
+explicit_python=yes
+
+# Create a Python virtual environment using our configured python.
+# The stdout of this script will be the location of a symlink that
+# points to the configured Python.
+# Entry point scripts for pip, meson, and sphinx are generated if those
+# packages are present.
+
+# Defaults assumed for now:
+# - venv is cleared if it exists already;
+# - venv is allowed to use system packages;
+# - all setup is performed **offline**;
+# - No packages are installed by default;
+# - pip is not installed into the venv when possible,
+# but ensurepip is called as a fallback when necessary.
+
+echo "python determined to be '$python'"
+echo "python version: $($python --version)"
+
+python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
+if test "$?" -ne 0 ; then
+ error_exit "python venv creation failed"
+fi
+
+# Suppress writing compiled files
+python="$python -B"
has_meson() {
local python_dir=$(dirname "$python")