added py-pandas

var/spack/packages/py-pandas/package.py

+from spack import *
+import os
+
+class PyPandas(Package):
+    """pandas is a Python package providing fast, flexible, and expressive data structures designed to make working with relational or labeled data both easy and intuitive. It aims to be the fundamental high-level building block for doing practical, real world data analysis in Python. Additionally, it has the broader goal of becoming the most powerful and flexible open source data analysis / manipulation tool available in any language."""
+    homepage = "http://pandas.pydata.org/"
+    url      = "https://pypi.python.org/packages/source/p/pandas/pandas-0.16.0.tar.gz#md5=bfe311f05dc0c351f8955fbd1e296e73"
+
+    version('0.16.0', 'bfe311f05dc0c351f8955fbd1e296e73')
+
+    extends('python')
+    depends_on('py-dateutil')
+    depends_on('py-numpy')
+    depends_on('py-matplotlib')
+    depends_on('py-scipy')
+    depends_on('py-setuptools')
+    depends_on('py-pytz')
+
+    def install(self, spec, prefix):
+        python('setup.py', 'install', '--prefix=%s' % prefix)