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docs/manual/adding-packages-python.txt: fix outdated Python 3 explanation

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Python packages should no longer depend on BR2_PACKAGE_PYTHON in their
config file, unless they are only compatible with Python 2.

Signed-off-by: Raphaël Mélotte <raphael.melotte@essensium.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Raphaël Mélotte 2019-09-09 13:58:07 +02:00 committed by Thomas Petazzoni
parent 25b0bca954
commit b5c553ba59
1 changed files with 7 additions and 3 deletions
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docs/manual/adding-packages-python.txt
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@ -67,9 +67,13 @@ Python build system, but are not Python modules, can freely choose
their name (existing examples in Buildroot are +scons+ and
+supervisor+).
In their +Config.in+ file, they should depend on +BR2_PACKAGE_PYTHON+
so that when Buildroot will enable Python 3 usage for modules, we will
be able to enable Python modules progressively on Python 3.
Packages that are only compatible with one version of Python (as in:
Python 2 or Python 3) should depend on that version explicitely in
their +Config.in+ file (+BR2_PACKAGE_PYTHON+ for Python 2,
+BR2_PACKAGE_PYTHON3+ for Python 3). Packages that are compatible
with both versions should not explicitely depend on them in their
+Config.in+ file, since that condition is already expressed for the
whole "External python modules" menu.
The main macro of the Python package infrastructure is
+python-package+. It is similar to the +generic-package+ macro. It is