dev-python: merge most python2 and python3 recipes.

* adjust recipes depending on these, ie python_dateutil=>dateutil_python.
* switch architectures to any for relevant python recipes.
* bump versions for retext, argh, beautifulsoup, cssselect, dateutil,
docutils, fonttools, html2text, httplib2, lxml, mechanize, mock, paramiko,
pillow, pip, pygments, requests, twisted, urllib3, zope_interface.

dev-python/pyyaml/pyyaml-3.12.recipe

@@ -0,0 +1,74 @@
+SUMMARY="YAML parser and emitter for Python"
+DESCRIPTION="
+YAML is a data serialization format designed for human readability \
+and interaction with scripting languages. \
+PyYAML is a YAML parser and emitter for Python.
+
+PyYAML features a complete YAML 1.1 parser, Unicode support, \
+pickle support, capable extension API, and sensible error messages. \
+PyYAML supports standard YAML tags and \
+provides Python-specific tags that allow to represent an arbitrary Python object.
+
+PyYAML is applicable for a broad range of tasks from \
+complex configuration files to object serialization and persistance.
+"
+HOMEPAGE="http://pyyaml.org/"
+COPYRIGHT="2006 Kirill Simonov"
+LICENSE="MIT"
+REVISION="1"
+SOURCE_URI="http://pyyaml.org/download/pyyaml/PyYAML-$portVersion.tar.gz"
+CHECKSUM_SHA256="592766c6303207a20efc445587778322d7f73b161bd994f227adaa341ba212ab"
+SOURCE_DIR="PyYAML-$portVersion"
+
+ARCHITECTURES="x86_gcc2 x86 x86_64"
+
+PROVIDES="
+	$portName = $portVersion
+	"
+REQUIRES="
+	haiku
+	"
+
+BUILD_REQUIRES="
+	haiku_devel
+	"
+BUILD_PREREQUIRES="
+	cmd:gcc
+	"
+
+PYTHON_PACKAGES=(python python3)
+PYTHON_VERSIONS=(2.7 3.6)
+for i in "${!PYTHON_PACKAGES[@]}"; do
+pythonPackage=${PYTHON_PACKAGES[i]}
+pythonVersion=${PYTHON_VERSIONS[$i]}
+eval "PROVIDES_${pythonPackage}=\"\
+	${portName}_$pythonPackage = $portVersion\
+	\"; \
+REQUIRES_$pythonPackage=\"\
+	haiku\n\
+	cmd:python$pythonVersion\
+	\""
+BUILD_REQUIRES="$BUILD_REQUIRES
+	setuptools_$pythonPackage"
+BUILD_PREREQUIRES="$BUILD_PREREQUIRES
+	cmd:python$pythonVersion"
+done
+
+INSTALL()
+{
+	for i in "${!PYTHON_PACKAGES[@]}"; do
+		pythonPackage=${PYTHON_PACKAGES[i]}
+		pythonVersion=${PYTHON_VERSIONS[$i]}
+
+		python=python$pythonVersion
+		installLocation=$prefix/lib/$python/vendor-packages/
+		export PYTHONPATH=$installLocation:$PYTHONPATH
+		mkdir -p $installLocation
+		rm -rf build
+		$python setup.py build install \
+			--root=/ --prefix=$prefix
+
+		packageEntries  $pythonPackage \
+			$prefix/lib/python*
+	done
+}