256c798bc4
Having multi-line if-elif statements is not ideal, case improves readability clarifying the code. Change-Id: I3383584e09763d4ae8eab2f36a93ee399dae8382 |
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cleanup.d | ||
environment.d | ||
pre-install.d | ||
README.rst |
========== dib-python ========== .. note:: This element is deprecated. All distributions support Python 3 so tools running in the chroot can simply use ``/usr/bin/python3``. Adds a symlink to ``/usr/local/bin/dib-python`` which points at either a ``python2`` or ``python3`` executable as appropriate. In-chroot scripts should use this as their interpreter (``#!/usr/local/bin/dib-python``) to make scripts that are compatible with both ``python2`` and ``python3``. We can not assume ``/usr/bin/python`` exists, as some platforms have started shipping with only Python 3. ``DIB_PYTHON`` will be exported as the python interpreter. You should use this instead of ``python script.py`` (e.g. ``${DIB_PYTHON} script.py``). Note you can also call ``/usr/local/bin/dib-python script.py`` but in some circumstances, such as creating a ``virtualenv``, it can create somewhat confusing references to ``dib-python`` that remain in the built image. This does not install a python if one does not exist, and instead fails. This also exports a variable ``DIB_PYTHON_VERSION`` which will either be '2' or '3' depending on the python version which dib-python points to. .. note:: The ``dib-python`` interpreter will be removed in ``cleanup.d``. It is only intended for build scripts.