这个帖子要收藏，以后用得着--python 实时获取子进程输出

在论坛上找到方法了，http://bbs.csdn.net/topics/340234292

http://blog.csdn.net/junshao90/article/details/8215751

1. import subprocess
2. def main():
3. process1 = subprocess.Popen("python  -u sub.py", shell=False, stdout = subprocess.PIPE, stderr=subprocess.STDOUT)
4. #print process1.communicate()[0]
5. while True:
6. line = process1.stdout.readline()
7. if not line:
8. break
9. print line
10. if __name__ == '__main__':
11. main()

1. import subprocess
2. import time
3. p = subprocess.Popen('ping 127.0.0.1 -n 10', stdout=subprocess.PIPE)
4. while p.poll() == None:
5. print p.stdout.readline()
6. time.sleep(1)
7. print p.stdout.read()
8. print 'returen code:', p.returncode