| ## New option to choose python installation environment | |
| It is now possible to specify `-Dpython.install_env` and choose how python modules are installed. | |
| - `venv`: assume that a virtualenv is active and install to that | |
| - `system`: install to the global site-packages of the selected interpreter | |
| (the one that the venv module calls --system-site-packages) | |
| - `prefix`: preserve existing behavior | |
| - `auto`: autodetect whether to use venv or system |