python2 (updated)

- License corrected
- Metadata compliant
- Add sqlite to runtime
- Add check case

Signed-off-by: Mike Fiedler <miketheman@gmail.com>

python2/plan.sh

@@ -1,12 +1,16 @@
 pkg_name=python2
 pkg_version=2.7.12
 pkg_origin=core
-pkg_license=('python')
+pkg_license=('Python-2.0')
+pkg_maintainer="The Habitat Maintainers <humans@habitat.sh>"
+pkg_description="Python is a programming language that lets you work quickly
+  and integrate systems more effectively."
+pkg_upstream_url=https://www.python.org/
 pkg_dirname=Python-${pkg_version}
 pkg_source=https://www.python.org/ftp/python/${pkg_version}/${pkg_dirname}.tgz
 pkg_filename=${pkg_dirname}.tgz
 pkg_shasum=3cb522d17463dfa69a155ab18cffa399b358c966c0363d6c8b5b3bf1384da4b6
-pkg_deps=(core/glibc core/gcc-libs core/coreutils core/make core/ncurses core/zlib core/readline core/openssl core/bzip2)
+pkg_deps=(core/glibc core/gcc-libs core/coreutils core/make core/ncurses core/zlib core/readline core/openssl core/bzip2 core/sqlite)
 pkg_build_deps=(core/linux-headers core/gcc)
 pkg_lib_dirs=(lib)
 pkg_bin_dirs=(bin)
@@ -16,11 +20,20 @@ pkg_interpreters=(bin/python bin/python2 bin/python2.7)
 do_prepare() {
     sed -i.bak 's/#zlib/zlib/' Modules/Setup.dist
     sed -i -re "/(SSL=|_ssl|-DUSE_SSL|-lssl).*/ s|^#||" Modules/Setup.dist
+
+    # Allow embedded sqlite to load extensions
+    # Uncertain if this is absolutely required, leaving commented for now.
+    # https://docs.python.org/2/library/sqlite3.html#f1
+    # sed -i 's/sqlite_defines.append(("SQLITE_OMIT_LOAD_EXTENSION", "1"))//g' setup.py
 }
 
 do_build() {
-    ./configure --prefix=${pkg_prefix} \
+    ./configure --prefix="${pkg_prefix}" \
                 --enable-shared \
                 --with-ensurepip
     make
 }
+
+do_check() {
+  LD_LIBRARY_PATH=$PWD ./python -E -c 'import sqlite3'
+}