name : sample_eventlistener.py #!/usr/bin/python3 -u # A sample long-running supervisor event listener which demonstrates # how to accept event notifications from supervisor and how to respond # properly. This demonstration does *not* use the # supervisor.childutils module, which wraps the specifics of # communications in higher-level API functions. If your listeners are # implemented using Python, it is recommended that you use the # childutils module API instead of modeling your scripts on the # lower-level protocol example below. import sys def write_stdout(s): sys.stdout.write(s) sys.stdout.flush() def write_stderr(s): sys.stderr.write(s) sys.stderr.flush() def main(): while 1: write_stdout('READY\n') # transition from ACKNOWLEDGED to READY line = sys.stdin.readline() # read header line from stdin write_stderr(line) # print it out to stderr (testing only) headers = dict([ x.split(':') for x in line.split() ]) data = sys.stdin.read(int(headers['len'])) # read the event payload write_stderr(data) # print the event payload to stderr (testing only) write_stdout('RESULT 2\nOK') # transition from BUSY to ACKNOWLEDGED #write_stdout('RESULT 4\nFAIL') # transition from BUSY TO ACKNOWLEDGED if __name__ == '__main__': main()