Improve some aspects of python packaging

patches/packages/to-upstream/0001-python3-Drop-pytest-from-requirements.patch

+From 390b6b1c3ad18833743320f1c8fd04b0246b4759 Mon Sep 17 00:00:00 2001
+From: Michal Hrusecky <michal.hrusecky@nic.cz>
+Date: Wed, 21 Nov 2018 15:25:57 +0100
+Subject: [PATCH] python3: Drop pytest from requirements
+
+We don't plan to run them anyway, so let's keep this dependency out.
+
+Signed-off-by: Michal Hrusecky <michal.hrusecky@nic.cz>
+---
+ lang/python/python3-package.mk | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/lang/python/python3-package.mk b/lang/python/python3-package.mk
+index 7f47370..0986537 100644
+--- a/lang/python/python3-package.mk
++++ b/lang/python/python3-package.mk
+@@ -141,8 +141,12 @@ endef
+ 
+ Py3Build/Compile=$(Py3Build/Compile/Default)
+ 
++define python3_drop_pytest_requirements
++	$(SED) -i '/^pytest/ d' $(PKG_BUILD_DIR)/requirements.txt
++endef
+ 
+ Hooks/Compile/Post += python3_fix_interpreter_paths
++Hooks/Compile/Pre += python3_drop_pytest_requirements
+ 
+ ifeq ($(BUILD_VARIANT),python3)
+ define Build/Compile
+-- 
+2.19.1
+

patches/packages/to-upstream/0001-python3-Make-python-version-part-of-release-number.patch

+From 80daee8c1a4573e5045934a14f7f2d77e7d99f19 Mon Sep 17 00:00:00 2001
+From: Michal Hrusecky <michal.hrusecky@nic.cz>
+Date: Wed, 21 Nov 2018 15:27:34 +0100
+Subject: [PATCH] python3: Make python version part of release number
+
+We need to distinguish between packages targeting different python version.
+
+Signed-off-by: Michal Hrusecky <michal.hrusecky@nic.cz>
+---
+ lang/python/python3-package.mk | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/lang/python/python3-package.mk b/lang/python/python3-package.mk
+index 0986537..f573367 100644
+--- a/lang/python/python3-package.mk
++++ b/lang/python/python3-package.mk
+@@ -20,6 +20,8 @@ PYTHON3:=python$(PYTHON3_VERSION)
+ 
+ PYTHON3PATH:=$(PYTHON3_LIB_DIR):$(STAGING_DIR)/$(PYTHON3_PKG_DIR):$(PKG_INSTALL_DIR)/$(PYTHON3_PKG_DIR)
+ 
++PKG_RELEASE:=$(PYTHON3_VERSION)-$(PKG_RELEASE)
++
+ # These configure args are needed in detection of path to Python header files
+ # using autotools.
+ CONFIGURE_ARGS += \
+-- 
+2.19.1
+