Initial versions of python and libffi.

var/spack/packages/libffi/package.py

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+from spack import *
+
+class Libffi(Package):
+    """The libffi library provides a portable, high level programming
+    interface to various calling conventions. This allows a programmer
+    to call any function specified by a call interface description at
+    run time."""
+    homepage = "https://sourceware.org/libffi/"
+    url      = "ftp://sourceware.org/pub/libffi/libffi-3.1.tar.gz"
+
+    version('3.1', 'f5898b29bbfd70502831a212d9249d10')
+
+    def install(self, spec, prefix):
+        configure("--prefix=%s" % prefix)
+        make()
+        make("install")

var/spack/packages/python/package.py

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+from spack import *
+
+class Python(Package):
+    """The Python programming language."""
+    homepage = "http://www.python.org"
+    url      = "http://www.python.org/ftp/python/2.7.8/Python-2.7.8.tar.xz"
+
+    version('2.7.8', 'd235bdfa75b8396942e360a70487ee00')
+
+    depends_on("openssl")
+    depends_on("sqlite")
+
+    def install(self, spec, prefix):
+        configure("--prefix=%s" % prefix)
+        make()
+        make("install")