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doc: update GSG and Linux guides for move to Python 3.6

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Add information about the minimum Python version to the advanced Linux
documentation.

Drop 16.04 from the GSG since its system Python 3 is no longer covered
by these instructions.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
This commit is contained in:
Martí Bolívar 2019-12-11 13:05:54 -08:00 • committed by Alberto Escolar
commit 93b740c464
2 changed files with 21 additions and 12 deletions
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20
doc/getting_started/index.rst
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@ -29,10 +29,11 @@ tools. First, make sure your development system OS is updated:
.. group-tab:: Ubuntu
Use these commands to bring your Linux (Ubuntu) system up to date.
If you're using a different Linux distribution, use the appropriate
package manager for your OS. (See :ref:`installation_linux` for
more information about other Linux distributions.)
This guide covers Ubuntu version 18.04 LTS and later. See
:ref:`installation_linux` for information about other Linux
distributions and older versions of Ubuntu.
Use these commands to bring your Ubuntu system up to date:
.. code-block:: bash
@ -94,16 +95,11 @@ We'll also install Zephyr's multi-purpose west tool.
wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | sudo apt-key add -
b) Add the kitware repo corresponding to your Ubuntu LTS release (use
``cat /etc/os-release`` to check):
b) Add the kitware repo corresponding to the Ubuntu 18.04 LTS release:
For Ubuntu Bionic Beaver (18.04) use::
.. code-block:: bash
sudo apt-add-repository 'deb https://apt.kitware.com/ubuntu/ bionic main'
For Ubuntu Xenial Xerus (16.04) use::
sudo apt-add-repository 'deb https://apt.kitware.com/ubuntu/ xenial main'
sudo apt-add-repository 'deb https://apt.kitware.com/ubuntu/ bionic main'
c) Then install the updated cmake using the usual apt commands:

13
doc/getting_started/installation_linux.rst
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@ -192,6 +192,19 @@ more recent one by building from source, or use the one that is bundled in
the :ref:`Zephyr SDK <zephyr_sdk>` by installing it and setting the
:envvar:`ZEPHYR_SDK_INSTALL_DIR` environment variable.
Python
======
Python 3.6 or later is required. Check what version you have by using ``python3
--version``.
If you have an older version, you will need to install a more recent Python 3.
You can build from source, or use a backport from your distribution's package
manager channels if one is available. Isolating this Python in a virtual
environment is recommended to avoid interfering with your system Python.
.. _pyenv: https://github.com/pyenv/pyenv
.. _zephyr_sdk:
Install the Zephyr Software Development Kit (SDK)