A rather simple script to kill stalled processes. Adapt the grep string in the PS_CMD variable to make it match your needs.

kill-old-processes.py

# coding: utf-8


"""
    Dieses Script beendet bestimmte Scraper-Prozesse, die
    schon länger als einen Tag laufen.
"""


PS_CMD = 'ps -eo pid,etime,cmd|grep scrape_updated_dose_values.py'

DAYSLIMIT = 1

import os

if __name__ == '__main__':
    handler = os.popen(PS_CMD, 'r')
    lines = handler.read().split("\n")
    for line in lines:
        parts = line.strip().split()
        if len(parts) < 3:
            continue
        ageparts = parts[1].split('-')
        if len(ageparts) < 2:
            continue
        pid = int(parts[0])
        days = int(ageparts[0])
        if days < DAYSLIMIT:
            continue
        command = " ".join(parts[2:])
        print "Killing", pid, "after", days, "days -", command
        handler = os.popen('kill ' + str(pid), 'r')