title: set oracle_home in unix from python script
body: <p>hi I'm trying to run sqlldr from python script, before that I'm trying to set ORACLE_HOME from python as below</p>
  
  <blockquote>
    <p>subprocess.call(["export","ORACLE_HOME=/home/user1/oracle/client"], shell=True)  </p>
  </blockquote>
  
  <p>when I run the above python script, it displays all environment variables. When I search for ORACLE_HOME in that it never displays the one which I set (/home/user1/oracle/client) instead it displays someother path which is incorrect.</p>
  
  <p>How can I set the ORACLE_HOME in unix from python script?</p>