I wanted to use python as I use my Clojure

hello.py

import sys

if not hasattr(sys, 'real_prefix'):
  #we need a virtualenv activated env.
  raise NameError('Not in virtualenv')

from subprocess import call, check_output
  
import os

def install(prog):
  my_env = dict(os.environ, PATH=os.environ.get('VIRTUAL_ENV') + "/bin:" + os.environ.get('PATH'))
  return check_output(["pip install " + prog], env=my_env, shell=True)

  
install("sqlalchemy")

import sqlalchemy