Question

In the following code snippet (meant to work in an init.d environment) I would like to execute test.ClassPath. However, I’m having trouble setting and passing the CLASSPATH environment variable as defined in the user’s .bashrc.

Here is the source of my frustration:

• When the below script is run in use mode, it prints out the CLASSPATH OK (from $HOME/.bashrc)
• when I run it as root, it also displays CLASSPATH fine (I’ve set up /etc/bash.bashrc with CLASSPATH)
• BUT when I do “sudo script.py” (to simulate what happens at init.d startup time), the CLASSPATH is missing !!

The CLASSPATH is quite large, so I’d like to read it from a file .. say $HOME/.classpath

#!/usr/bin/python
import subprocess
import os.path as osp
import os

user = "USERNAME"
logDir = "/home/USERNAME/temp/"
print os.environ["HOME"]

if "CLASSPATH" in os.environ:
        print os.environ["CLASSPATH"]
else:
        print "Missing CLASSPATH"
procLog = open(osp.join(logDir, 'test.log'), 'w')
cmdStr = 'sudo -u %s -i java  test.ClassPath'%(user, ) # run in user
proc = subprocess.Popen(cmdStr, shell=True, bufsize=0, stderr=procLog, stdout=procLog)
procLog.close()

Answer 1

You could put source ~/.bashrc before starting your python script to get the environment variables set.