python-pyrsistent: add a new package

Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>

lang/python/python-pyrsistent/Makefile

@@ -0,0 +1,43 @@
+#
+# Copyright (C) 2019 CZ.NIC, z. s. p. o. (https://www.nic.cz/)
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=python-pyrsistent
+PKG_VERSION:=0.15.3
+PKG_RELEASE:=1
+
+PKG_SOURCE:=pyrsistent-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://files.pythonhosted.org/packages/source/p/pyrsistent/
+PKG_HASH:=50cffebc87ca91b9d4be2dcc2e479272bcb466b5a0487b6c271f7ddea6917e14
+PKG_BUILD_DIR:=$(BUILD_DIR)/pyrsistent-$(PKG_VERSION)
+
+PKG_MAINTAINER:=Josef Schlehofer <josef.schlehofer@nic.cz>
+PKG_LICENSE:=MIT
+PKG_LICENSE_FILES:=LICENSE.mit
+
+include $(INCLUDE_DIR)/package.mk
+include ../python3-package.mk
+
+define Package/python3-pyrsistent
+  SUBMENU:=Python
+  SECTION:=lang
+  CATEGORY:=Languages
+  TITLE:=Persistent/Functional/Immutable data structures
+  URL:=https://github.com/tobgu/pyrsistent
+  DEPENDS:=+python3-light +python3-six
+  VARIANT:=python3
+endef
+
+define Package/python3-pyrsistent/description
+  Pyrsistent is a number of persistent collections (by some referred to as functional data structures).
+  Persistent in the sense that they are immutable.
+endef
+
+$(eval $(call Py3Package,python3-pyrsistent))
+$(eval $(call BuildPackage,python3-pyrsistent))
+$(eval $(call BuildPackage,python3-pyrsistent-src))