実行の中断・再開

KeyboardInterruptされたら状態をファイルに退避して、再実行時に復帰する。

#!/usr/bin/python

import sys
import os
import time

import pickle

fname = 'serialized'

try:
f = open(fname, 'r')
counter = pickle.load(f)
f.close()
except:
counter = 0
pass


try:
while counter < 10:
    print counter
    counter += 1
    time.sleep(1)
except KeyboardInterrupt:
  print 'Got KeyboardInterrupt'
  f = open(fname, 'w')
  pickle.dump(counter, f)
  f.close()
  sys.exit()
try:
  os.remove(fname)
except:
  pass

実行結果:

[nori@nagato]~/Desktop/backgammon/bgonline% python int.py
0
1
Got KeyboardInterrupt
[nori@nagato]~/Desktop/backgammon/bgonline% python int.py
2
3
4
5
6
7
8
9
[nori@nagato]~/Desktop/backgammon/bgonline% python int.py
0
1
2
3
4
5
6
7
8
9
[nori@nagato]~/Desktop/backgammon/bgonline%