I have a question about executing a script via execfile() in Python
My main script is located at home/pi/var/www/html/main.py. My second script is home/pi/start.py and includes several modules.
When I execfile("/home/pi/start.py") I get this error:
<type 'exceptions.ImportError'> Python 2.7.9: /usr/bin/python
Tue May 10 18:27:41 2016
A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.
 /var/www/html/main.py in ()
    207 
    208     sys.stdout.flush()
    209 
    210 if __name__=="__main__":
=>  211     main()
main = <function main>
 /var/www/html/web.py in main()
    165 
    166     if start is not None:
=>  167         execfile("/home/pi/test.py")
    168        
    169     # 1 staat voor laatste uur
builtin execfile = <built-in function execfile>
 /home/pi/start.py in ()
      2 import time
      3 import RPi.GPIO as GPIO
      4 import os
      5 import sqlite3
      6 import Adafruit_DHT
pid undefined
<type 'exceptions.ImportError'>: No module named pid 
      args = ('No module named pid',) 
      message = 'No module named pid'
If someone know the answer feel free to share.