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-cryptography/Makefile

@@ -0,0 +1,53 @@
+#
+# Copyright (C) 2015-2016 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=cryptography
+PKG_VERSION:=1.5.1
+PKG_RELEASE:=2
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://pypi.python.org/packages/21/e1/37fc14f9d77924e84ba0dcb88eb8352db914583af229287c6c965d66ba0d
+PKG_MD5SUM:=66a3e01f5f436d2413ef47b7e6bb7729
+
+PKG_BUILD_DEPENDS:=python-cffi/host
+
+PKG_LICENSE:=Apache-2.0 BSD-3-Clause
+PKG_LICENSE_FILES:=LICENSE.APACHE LICENSE.BSD
+PKG_MAINTAINER:=Jeffery To <jeffery.to@gmail.com>
+
+include $(INCLUDE_DIR)/package.mk
+$(call include_mk, python-package.mk)
+
+define Package/python-cryptography
+	SECTION:=lang
+	CATEGORY:=Languages
+	SUBMENU:=Python
+	TITLE:=python-cryptography
+	URL:=https://github.com/pyca/cryptography
+	DEPENDS:=+libopenssl +python +python-cffi +python-enum34 +python-idna +python-ipaddress +python-pyasn1 +python-six +python-setuptools
+endef
+
+define Package/python-cryptography/description
+cryptography is a package which provides cryptographic recipes and
+primitives to Python developers.  Our goal is for it to be your "cryptographic
+standard library". It supports Python 2.6-2.7, Python 3.3+, and PyPy 2.6+.
+endef
+
+define PyPackage/python-cryptography/filespec
++|$(PYTHON_PKG_DIR)
+-|$(PYTHON_PKG_DIR)/cryptography/hazmat/backends/commoncrypto
+-|$(PYTHON_PKG_DIR)/cryptography/hazmat/bindings/commoncrypto
+endef
+
+define Build/Compile
+	$(call Build/Compile/PyMod,,install --prefix="/usr" --root="$(PKG_INSTALL_DIR)")
+endef
+
+$(eval $(call PyPackage,python-cryptography))
+$(eval $(call BuildPackage,python-cryptography))

lang/python/python-cryptography/patches/001-disable-setup-requirements.patch

@@ -0,0 +1,12 @@
+diff --git a/setup.py b/setup.py
+index b5c05df..a777dd7 100644
+--- a/setup.py
++++ b/setup.py
+@@ -266,6 +266,7 @@ class DummyPyTest(test):
+ with open(os.path.join(base_dir, "README.rst")) as f:
+     long_description = f.read()
+ 
++setup_requirements=[]
+ 
+ setup(
+     name=about["__title__"],