docs/manual: drop python2 references

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

docs/manual/adding-packages-python.txt

@@ -67,14 +67,6 @@ Python build system, but are not Python modules, can freely choose
 their name (existing examples in Buildroot are +scons+ and
 +supervisor+).
 
-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
 also possible to create Python host packages with the

docs/manual/writing-rules.txt

@@ -93,9 +93,9 @@ so _make_ recognizes them as commands.
 YES:
 +
 ---------------------
-ifeq ($(BR2_PACKAGE_PYTHON),y)
+ifeq ($(BR2_PACKAGE_PYTHON3),y)
 LIBFOO_CONF_OPTS += --with-python-support
-LIBFOO_DEPENDENCIES += python
+LIBFOO_DEPENDENCIES += python3
 else
 LIBFOO_CONF_OPTS += --without-python-support
 endif
@@ -104,8 +104,8 @@ endif
 NO:
 +
 ---------------------
-LIBFOO_CONF_OPTS += --with$(if $(BR2_PACKAGE_PYTHON),,out)-python-support
-LIBFOO_DEPENDENCIES += $(if $(BR2_PACKAGE_PYTHON),python,)
+LIBFOO_CONF_OPTS += --with$(if $(BR2_PACKAGE_PYTHON3),,out)-python-support
+LIBFOO_DEPENDENCIES += $(if $(BR2_PACKAGE_PYTHON3),python3,)
 ---------------------
 
 ** Keep configure options and dependencies close together.