cron.minute().during(5, 50).every(5)
cron.hour().every(4)
cron2 = tab.new(command='/foo/bar', comment='SomeID')
cron2.every_reboot()
list = tab.find('bar')
cron3 = list[0]
cron3.clear()
cron3.minute().every(1)
print(str(tab.render()))
for cron4 in tab.find('echo'):
    print(cron4)
for cron5 in tab:
    print(cron5)
tab.remove_all('echo')
t.write()
Parse a cron entry in Python