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antonchen/yield_demo.py

Created May 25, 2018 02:29
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yield_demo.py
from subprocess import Popen, PIPE
import json
def run_command(command):
command_process = Popen(command, stdout=PIPE, shell=True)
while True:
line = command_process.stdout.readline().rstrip()
if not line:
break
yield line
for line in run_command('tail -f file.log'):
print(json.load(line)['type'])
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