python3-pynacl: add a new package

Signed-off-by: Javier Marcet <javier@marcet.info>

lang/python/python-pynacl/Makefile

@@ -0,0 +1,40 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=python-pynacl
+PKG_VERSION:=1.4.0
+PKG_RELEASE:=1
+
+PYPI_NAME:=PyNaCl
+PKG_HASH:=54e9a2c849c742006516ad56a88f5c74bf2ce92c9f67435187c3c5953b346505
+
+PKG_MAINTAINER:=Javier Marcet <javier@marcet.info>
+PKG_LICENSE:=Apache-2.0
+PKG_LICENSE_FILES:=LICENSE
+
+PKG_BUILD_DEPENDS:=libffi/host
+
+HOST_PYTHON3_PACKAGE_BUILD_DEPENDS:="cffi>=1.4.1"
+
+PYTHON3_PKG_SETUP_VARS:= SODIUM_INSTALL=system
+
+include ../pypi.mk
+include $(INCLUDE_DIR)/package.mk
+include ../python3-package.mk
+
+define Package/python3-pynacl
+  CATEGORY:=Languages
+  SECTION:=lang
+  SUBMENU:=Python
+  TITLE:=Python binding to the libsodium library
+  URL:=https://github.com/pyca/pynacl/
+  DEPENDS:=+libsodium +python3-light +python3-cffi +python3-six
+  VARIANT:=python3
+endef
+
+define Package/python3-pynacl/description
+  PyNaCl is a Python binding to libsodium, which is a fork of the Networking and Cryptography library.
+endef
+
+$(eval $(call Py3Package,python3-pynacl))
+$(eval $(call BuildPackage,python3-pynacl))
+$(eval $(call BuildPackage,python3-pynacl-src))