grep_attemps.py

import time
import os

def grep_attemps(fname, grep, wait_sec=3, attemps=30):
    #import pdb;pdb.set_trace()
    with open(fname, "r") as f:
        where = f.tell()
        for i in range(attemps):
            lines = f.readlines()
            if not lines:
                f.seek(where)
            else:
                for line in lines:
                    if grep in line:
                        return True
            time.sleep(wait_sec)
    return False

path = "/Users/moylop260/openerp/instancias/odoo_git_clone/community-addons/odoo-extra/runbot/static/build/"
build = "00526-7-0-7-0-od"
fname = os.path.join(path, build, "logs", "job_20_test_all.txt")
#fname = "/Users/moylop260/openerp/instancias/odoo_git_clone/start/log/trunk-odoo-runbot.log"
print grep_attemps(fname, '.modules.loading: Modules loaded.', 3, 600)