doc: remove references to python 2

  Python 2 support has now been dropped. Remove references to it in the
documentation.

Since all python scripts now have a proper shebang that calls python3,
execute the scripts directly without specifying the interpreter.

Sphinx version from most Linux distros is OK in 2020, do not encourage
people to break their system by installing with pip. Use the distros
official packages.

Signed-off-by: Robin Jarry <robin.jarry@6wind.com>
---
 doc/guides/conf.py                        | 2 +-
 doc/guides/contributing/documentation.rst | 8 ++------
 doc/guides/howto/telemetry.rst            | 2 +-
 doc/guides/nics/virtio.rst                | 4 ++--
 doc/guides/rel_notes/deprecation.rst      | 4 ++--
 doc/guides/tools/testbbdev.rst            | 2 +-
 6 files changed, 9 insertions(+), 13 deletions(-)
  

On Fri, Oct 02, 2020 at 05:47:53PM +0200, Robin Jarry wrote:
> Python 2 support has now been dropped. Remove references to it in the
> documentation.
> 
> Since all python scripts now have a proper shebang that calls python3,
> execute the scripts directly without specifying the interpreter.
> 
> Sphinx version from most Linux distros is OK in 2020, do not encourage
> people to break their system by installing with pip. Use the distros
> official packages.
> 
> Signed-off-by: Robin Jarry <robin.jarry@6wind.com>
> ---
>  doc/guides/conf.py                        | 2 +-
>  doc/guides/contributing/documentation.rst | 8 ++------
>  doc/guides/howto/telemetry.rst            | 2 +-
>  doc/guides/nics/virtio.rst                | 4 ++--
>  doc/guides/rel_notes/deprecation.rst      | 4 ++--
>  doc/guides/tools/testbbdev.rst            | 2 +-
>  6 files changed, 9 insertions(+), 13 deletions(-)
> 
> diff --git a/doc/guides/conf.py b/doc/guides/conf.py
> index ef550f68c056..270754b90131 100644
> --- a/doc/guides/conf.py
> +++ b/doc/guides/conf.py
> @@ -22,7 +22,7 @@
>      html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
>  except:
>      print('Install the sphinx ReadTheDocs theme for improved html documentation '
> -          'layout: pip install sphinx_rtd_theme')
> +          'layout: https://sphinx-rtd-theme.readthedocs.io/')
>      pass
>  
>  project = 'Data Plane Development Kit'
> diff --git a/doc/guides/contributing/documentation.rst b/doc/guides/contributing/documentation.rst
> index 375ea64ba8ee..be985e6cf87a 100644
> --- a/doc/guides/contributing/documentation.rst
> +++ b/doc/guides/contributing/documentation.rst
> @@ -164,14 +164,10 @@ For full support with figure and table captioning the latest version of Sphinx c
>  .. code-block:: console
>  
>     # Ubuntu/Debian.
> -   sudo apt-get -y install python-pip
> -   sudo pip install --upgrade sphinx
> -   sudo pip install --upgrade sphinx_rtd_theme
> +   sudo apt-get -y install python3-sphinx python3-sphinx-rtd-theme
>  
>     # Red Hat/Fedora.
> -   sudo dnf     -y install python-pip
> -   sudo pip install --upgrade sphinx
> -   sudo pip install --upgrade sphinx_rtd_theme
> +   sudo dnf     -y install python3-sphinx python3-sphinx_rtd_theme

Minor nit, I see no reason to preserve the big whitespace gap here.

>  
>  For further information on getting started with Sphinx see the
>  `Sphinx Getting Started <http://www.sphinx-doc.org/en/master/usage/quickstart.html>`_.
> diff --git a/doc/guides/howto/telemetry.rst b/doc/guides/howto/telemetry.rst
> index e7b5434152de..cf73dc41ce6b 100644
> --- a/doc/guides/howto/telemetry.rst
> +++ b/doc/guides/howto/telemetry.rst
> @@ -50,7 +50,7 @@ and query information using the telemetry client python script.
>  
>  #. Launch the telemetry client script::
>  
> -      python usertools/dpdk-telemetry.py
> +      ./usertools/dpdk-telemetry.py
>  
>  #. When connected, the script displays the following, waiting for user input::
>  
> diff --git a/doc/guides/nics/virtio.rst b/doc/guides/nics/virtio.rst
> index 33ce0c247e5f..4477c1c16088 100644
> --- a/doc/guides/nics/virtio.rst
> +++ b/doc/guides/nics/virtio.rst
> @@ -154,7 +154,7 @@ Host2VM communication example
>          modprobe uio
>          echo 512 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
>          modprobe uio_pci_generic
> -        python usertools/dpdk-devbind.py -b uio_pci_generic 00:03.0
> +        ./usertools/dpdk-devbind.py -b uio_pci_generic 00:03.0
>  
>      We use testpmd as the forwarding application in this example.
>  
> @@ -329,7 +329,7 @@ To support Rx interrupts,
>  
>      .. code-block:: console
>  
> -        python usertools/dpdk-devbind.py -b vfio-pci 00:03.0
> +        ./usertools/dpdk-devbind.py -b vfio-pci 00:03.0
>  
>  Example
>  ~~~~~~~
> diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
> index 0be208edcad8..8080a28896ad 100644
> --- a/doc/guides/rel_notes/deprecation.rst
> +++ b/doc/guides/rel_notes/deprecation.rst
> @@ -14,8 +14,8 @@ Deprecation Notices
>  * meson: The minimum supported version of meson for configuring and building
>    DPDK will be increased to v0.47.1 (from 0.41) from DPDK 19.05 onwards. For
>    those users with a version earlier than 0.47.1, an updated copy of meson
> -  can be got using the ``pip``, or ``pip3``, tool for downloading python
> -  packages.
> +  can be got using the ``pip3`` tool (or ``python3 -m pip``) for downloading
> +  python packages.
>  
>  * kvargs: The function ``rte_kvargs_process`` will get a new parameter
>    for returning key match count. It will ease handling of no-match case.
> diff --git a/doc/guides/tools/testbbdev.rst b/doc/guides/tools/testbbdev.rst
> index 393c3e9d0d24..99692314513f 100644
> --- a/doc/guides/tools/testbbdev.rst
> +++ b/doc/guides/tools/testbbdev.rst
> @@ -43,7 +43,7 @@ The tool application has a number of command line options:
>  
>  .. code-block:: console
>  
> -  python test-bbdev.py [-h] [-p TESTAPP_PATH] [-e EAL_PARAMS] [-t TIMEOUT]
> +    test-bbdev.py [-h] [-p TESTAPP_PATH] [-e EAL_PARAMS] [-t TIMEOUT]
>                         [-c TEST_CASE [TEST_CASE ...]]
>                         [-v TEST_VECTOR [TEST_VECTOR...]] [-n NUM_OPS]
>                         [-b BURST_SIZE [BURST_SIZE ...]] [-l NUM_LCORES]
> -- 
> 2.28.0
> 
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
  

2020-10-02, Bruce Richardson:
> > +   sudo dnf     -y install python3-sphinx python3-sphinx_rtd_theme
> 
> Minor nit, I see no reason to preserve the big whitespace gap here.

I thought about removing it but all the file is like this. I left it
as-is for consistency.
  

On 02/10/2020 16:47, Robin Jarry wrote:
> Python 2 support has now been dropped. Remove references to it in the
> documentation.
>
> Since all python scripts now have a proper shebang that calls python3,
> execute the scripts directly without specifying the interpreter.
>
> Sphinx version from most Linux distros is OK in 2020, do not encourage
> people to break their system by installing with pip. Use the distros
> official packages.
>
> Signed-off-by: Robin Jarry <robin.jarry@6wind.com>
> ---
>   doc/guides/conf.py                        | 2 +-
>   doc/guides/contributing/documentation.rst | 8 ++------
>   doc/guides/howto/telemetry.rst            | 2 +-
>   doc/guides/nics/virtio.rst                | 4 ++--
>   doc/guides/rel_notes/deprecation.rst      | 4 ++--
>   doc/guides/tools/testbbdev.rst            | 2 +-
>   6 files changed, 9 insertions(+), 13 deletions(-)
>
Acked-by: Kevin Laatz <kevin.laatz@intel.com>
  

On Fri, Oct 02, 2020 at 05:55:22PM +0200, Robin Jarry wrote:
> 2020-10-02, Bruce Richardson:
> > > +   sudo dnf     -y install python3-sphinx python3-sphinx_rtd_theme
> > 
> > Minor nit, I see no reason to preserve the big whitespace gap here.
> 
> I thought about removing it but all the file is like this. I left it
> as-is for consistency.
> 
Ok. Keep my ack, either way. :-)
  

On Fri, Oct 2, 2020 at 5:48 PM Robin Jarry <robin.jarry@6wind.com> wrote:
>
> Python 2 support has now been dropped. Remove references to it in the
> documentation.
>
> Since all python scripts now have a proper shebang that calls python3,
> execute the scripts directly without specifying the interpreter.
>
> Sphinx version from most Linux distros is OK in 2020, do not encourage
> people to break their system by installing with pip. Use the distros
> official packages.
>
> Signed-off-by: Robin Jarry <robin.jarry@6wind.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Kevin Laatz <kevin.laatz@intel.com>

Appliqued, merci Robin.