python packages: move all things python under lang/python

I admit this may be be a bit aggressive, but the lang
folder is getting cluttered/filled up with Python, PHP, Perl,
Ruby, etc. packages.

Makes sense to try to group them into per-lang folders.

I took the Pythons.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

lang/python/python-psycopg2/Makefile

@@ -0,0 +1,55 @@
+#
+# Copyright (C) 2016 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=python-psycopg2
+PKG_VERSION:=2.6.2
+PKG_RELEASE:=1
+PKG_MAINTAINER:=Dmitry Trefilov <the-alien@live.ru>
+PKG_LICENSE:=LGPL-3.0+
+PKG_LICENSE_FILES:=LICENSE
+
+PKG_SOURCE:=psycopg2-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=http://initd.org/psycopg/tarballs/PSYCOPG-2-6/
+PKG_MD5SUM:=4a392949ba31a378a18ed3e775a4693f
+
+PKG_BUILD_DIR:=$(BUILD_DIR)/psycopg2-$(PKG_VERSION)
+PKG_BUILD_DEPENDS:=python libpq python/host
+
+include $(INCLUDE_DIR)/package.mk
+$(call include_mk, python-package.mk)
+
+define Package/python-psycopg2
+  SUBMENU:=Python
+  SECTION:=lang
+  CATEGORY:=Languages
+  TITLE:=PostgreSQL database adapter for Python
+  URL:=http://www.initd.org/
+  DEPENDS:=+python +libpq +python-egenix-mx-base
+endef
+
+define Package/python-psycopg2/description
+ Psycopg is the most popular PostgreSQL adapter for the Python programming language
+endef
+
+define Build/Compile
+	# The PATH var is required so that psycopg2's setup.py script finds pg_config
+	$(call Build/Compile/PyMod,., \
+		install --prefix=/usr --root=$(PKG_INSTALL_DIR), \
+		PATH=$(STAGING_DIR)/usr/bin:$(PATH))
+endef
+
+define Package/python-psycopg2/install
+	$(INSTALL_DIR) $(1)$(PYTHON_PKG_DIR)
+	$(CP) \
+	    $(PKG_INSTALL_DIR)$(PYTHON_PKG_DIR)/* \
+	    $(1)$(PYTHON_PKG_DIR)
+endef
+
+$(eval $(call PyPackage,python-psycopg2))
+$(eval $(call BuildPackage,python-psycopg2))