History

Riccardo Pittau 256c798bc4 Convert multi line if statement to case Having multi-line if-elif statements is not ideal, case improves readability clarifying the code. Change-Id: I3383584e09763d4ae8eab2f36a93ee399dae8382		2021-04-07 07:17:19 +00:00
..
cleanup.d	Clean up dib-python symlink	2017-04-12 14:33:57 +10:00
environment.d	Convert multi line if statement to case	2021-04-07 07:17:19 +00:00
pre-install.d	Add support for CentOS 8 Stream	2020-06-22 10:36:30 +02:00
README.rst	Deprecate dib-python; remove from in-tree elements	2020-08-07 10:38:16 +10:00

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.