Add `3.5-dev` (#287)

plugins/python-build/bin/python-build

@@ -1457,6 +1457,11 @@ build_package_verify_py34() {
   build_package_verify_py33 "$1" "${2:-3.4}"
 }
 
+# Post-install check for Python 3.5.x
+build_package_verify_py35() {
+  build_package_verify_py34 "$1" "${2:-3.5}"
+}
+
 build_package_ez_setup() {
   local ez_setup="${BUILD_PATH}/ez_setup.py"
   rm -f "${ez_setup}"

plugins/python-build/share/python-build/3.5-dev

@@ -0,0 +1,3 @@
+#require_gcc
+install_package "readline-6.3" "http://ftpmirror.gnu.org/readline/readline-6.3.tar.gz#56ba6071b9462f980c5a72ab0023893b65ba6debb4eeb475d7a563dc65cafd43" standard --if has_broken_mac_readline
+install_hg "Python-3.5-dev" "https://bitbucket.org/mirror/cpython" "default" standard verify_py35 ensurepip