develop spark app with Pycharm

spark_pycharm.py

import os
import sys
import traceback

# Path for spark source folder
os.environ['SPARK_HOME']="~/Downloads/spark-1.2.0-bin-hadoop2.4"

# Append pyspark  to Python Path
sys.path.append("~/Downloads/spark-1.2.0-bin-hadoop2.4/python/")
sys.path.append("~/Downloads/spark-1.2.0-bin-hadoop2.4/python/lib/py4j-0.8.2.1-src.zip")

try:
    from pyspark import SparkContext
    from pyspark import SparkConf

    print ("Successfully imported Spark Modules")

except ImportError as e:
    print ("Can not import Spark Modules {}".format(traceback.format_exc()))
    sys.exit(1)