*Help please! How am I being dumb! grin!*

This example python script runs python via Popen. It simply tries to print 
a random number. But the PYTHONPATH is redefined without the system's 
python <lib thus it is unable to find the random module.

Bonus: I assume once I can get past this, then I will not longer need the 
-S as the builtin site module will be found.

PROGRAM:

import subprocess
import shlex

def run_cmd(cmd):
    cmd=shlex.split(cmd)
    try:
        output=subprocess.check_output(cmd, stderr=subprocess.STDOUT)
    except Exception as exc:
        print ">>>", exc.output
    else:
        print output

def main():

    cmd='python -S -c "import sys; print sys.path"'
    run_cmd(cmd)

    print "\n\n"

    cmd='python -S -c "import random; print random.randint(0,10)"'
    run_cmd(cmd)

if __name__=="__main__":
    main()


SPEC:

# -*- mode: python -*-
a = Analysis(['test.py'],
             pathex=['C:\\Users\\???\\Desktop\\testing'],
             hiddenimports=[],
             hookspath=None)
pyz = PYZ(a.pure)
exe = EXE(pyz,
          a.scripts,
          a.binaries,
          a.zipfiles,
          a.datas,
          name=os.path.join('dist', 'test.exe'),
          debug=False,
          strip=None,
          upx=True,
          console=True )



EXECUTION:

C:\Users\???\Desktop\testing>dist\test.exe
['', 'C:/Users/???/AppData/Local/Temp/_MEI92722', 
'C:/Users/???/Desktop/testing/dist', 'C:\\Windows\\system32\\python27.zip', 
'C:/User
s/???/AppData/Local/Temp/_MEI92722/\\DLLs', 
'C:/Users/???/AppData/Local/Temp/_MEI92722/\\lib', 
'C:/Users/???/AppData/Local/Temp/_ME
I92722/\\lib\\plat-win', 
'C:/Users/???/AppData/Local/Temp/_MEI92722/\\lib\\lib-tk', 'C:\\PYTHON27']


>>> Traceback (most recent call last):
  File "<string>", line 1, in <module>
ImportError: No module named random


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