initial pypo commit
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ohrstrom
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307
3rd_party/pypo/push.py
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Executable file
307
3rd_party/pypo/push.py
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# author Jonas Ohrstrom <jonas@digris.ch>
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"""
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Python part of radio playout (pypo)
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The main functionas are "fetch" (./pypo_cli.py -f) and "push" (./pypo_cli.py -p)
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Also check out the php counterpart that handles the api requests:
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https://lab.digris.ch/svn/elgg/trunk/unstable/mod/medialibrary/application/controllers/api/pypo.php
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Attention & ToDos
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- liquidsoap does not like mono files! So we have to make sure that only files with
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2 channels are fed to LS
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(solved: current = audio_to_stereo(current) - maybe not with ultimate performance)
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made for python version 2.5!!
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should work with 2.6 as well with a bit of adaption. for
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sure the json parsing has to be changed
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(2.6 has an parser, pypo brigs it's own -> util/json.py)
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"""
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# python defaults (debian default)
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import time
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import os
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import traceback
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from optparse import *
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import sys
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import time
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import datetime
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import logging
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import logging.config
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import shutil
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import urllib
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import urllib2
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import pickle
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import telnetlib
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import random
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import string
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import operator
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# additional modules (should be checked)
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from configobj import ConfigObj
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# custom imports
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from util import *
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from obp import *
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PYPO_VERSION = '0.1'
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OBP_MIN_VERSION = 2010100101 # required obp version
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#set up command-line options
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parser = OptionParser()
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# help screeen / info
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usage = "%prog [options]" + " - python playout system"
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parser = OptionParser(usage=usage)
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#options
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parser.add_option("-f", "--fetch", help="Fetch Schedule (loop, interval in config file)", default=False, action="store_true", dest="fetch")
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parser.add_option("-p", "--push", help="Push pl to Liquidsoap (loop, interval in config file)", default=False, action="store_true", dest="push")
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parser.add_option("-b", "--cleanup", help="Faeili Butzae aka cleanup", default=False, action="store_true", dest="cleanup")
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parser.add_option("-j", "--jingles", help="Get new jungles from obp, comma separated list if jingle-id's as argument", metavar="LIST")
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parser.add_option("-c", "--check", help="Check the cached schedule and exit", default=False, action="store_true", dest="check")
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parser.add_option("-P", "--pushpkey", help="Push PKEY", metavar="LIST")
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# parse options
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(options, args) = parser.parse_args()
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# configure logging
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logging.config.fileConfig("logging.cfg")
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# loading config file
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try:
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config = ConfigObj('config.cfg')
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CACHE_DIR = config['cache_dir']
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FILE_DIR = config['file_dir']
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TMP_DIR = config['tmp_dir']
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BASE_URL = config['base_url']
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OBP_API_BASE = BASE_URL + 'mod/medialibrary/'
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EXPORT_URL = OBP_API_BASE + config['export_path']
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EXPORT_SOURCE = config['export_source']
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OBP_STATUS_URL = OBP_API_BASE + 'status/version/json'
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OBP_API_KEY = config['obp_api_key']
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POLL_INTERVAL = float(config['poll_interval'])
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PUSH_INTERVAL = float(config['push_interval'])
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LS_HOST = config['ls_host']
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LS_PORT = config['ls_port']
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PREPARE_AHEAD = config['prepare_ahead']
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CACHE_FOR = config['cache_for']
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CUE_STYLE = config['cue_style']
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except Exception, e:
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print 'error: ', e
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sys.exit()
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#TIME = time.localtime(time.time())
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TIME = (2010, 6, 26, 15, 33, 23, 2, 322, 0)
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class Global:
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def __init__(self):
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#print '# global initialisation'
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print
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def selfcheck(self):
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self.api_auth = urllib.urlencode({'api_key': OBP_API_KEY})
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self.api_client = ApiClient(OBP_API_BASE, self.api_auth)
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obp_version = self.api_client.get_obp_version()
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if obp_version == 0:
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print '#################################################'
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print 'Unable to get OBP version. Is OBP up and running?'
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print '#################################################'
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print
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sys.exit()
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elif obp_version < OBP_MIN_VERSION:
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print 'OBP version: ' + str(obp_version)
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print 'OBP min-version: ' + str(OBP_MIN_VERSION)
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print 'pypo not compatible with this version of OBP'
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print
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sys.exit()
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else:
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print 'OBP API: ' + str(OBP_API_BASE)
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print 'OBP version: ' + str(obp_version)
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print 'OBP min-version: ' + str(OBP_MIN_VERSION)
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print 'pypo is compatible with this version of OBP'
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print
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"""
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Uncomment the following lines to let pypo check if
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liquidsoap is running. (checks for a telnet server)
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"""
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# while self.status.check_ls(LS_HOST, LS_PORT) == 0:
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# print 'Unable to connect to liquidsoap. Is it up and running?'
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# time.sleep(2)
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"""
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"""
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class Playout:
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def __init__(self):
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#print '# init fallback'
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self.cache_dir = CACHE_DIR
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self.file_dir = FILE_DIR
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self.tmp_dir = TMP_DIR
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self.export_url = EXPORT_URL
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self.export_source = EXPORT_SOURCE
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self.api_auth = urllib.urlencode({'api_key': OBP_API_KEY})
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self.api_client = ApiClient(OBP_API_BASE, self.api_auth)
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self.cue_file = CueFile()
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self.schedule_file = CACHE_DIR + 'schedule'
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# set initial state
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self.range_updated = False
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def push_liquidsoap(self,options):
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logger = logging.getLogger("push_liquidsoap")
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print options
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#pkey = '2010-10-26-21-00-00'
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pkey = options
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src = self.cache_dir + str(pkey) + '/list.lsp'
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print src
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if True == os.access(src, os.R_OK):
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print 'OK - Can read'
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pl_file = open(src, "r")
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"""
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i know this could be wrapped, maybe later..
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"""
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tn = telnetlib.Telnet(LS_HOST, 1234)
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#tn.write("\n")
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for line in pl_file.readlines():
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print line.strip()
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#tn.write('q.push ' + pl_entry)
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#tn.write("\n")
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tn.write('scheduler.push %s' % (line.strip()))
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tn.write("\n")
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tn.write("scheduler_q0.queue \n")
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tn.write("scheduler_q1.queue \n")
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#time.sleep(2)
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#print tn.read_all()
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print 'sending "flip"'
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tn.write('scheduler.flip')
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tn.write("\n")
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#tn.write("live_in.stop\n")
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#tn.write("stream_disable\n")
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#time.sleep(0.2)
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#tn.write("\n")
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#tn.write("reload_current\n")
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#tn.write("current.reload\n")
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#time.sleep(0.2)
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#tn.write("skip_current\n")
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# if(int(ptype) == 6):
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# """
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# Couchcaster / Recast comming. Stop/Start live input to have ls re-read it's playlist
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# """
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# print 'Couchcaster - switching to stream'
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# tn.write("live_in.start\n")
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# time.sleep(0.2)
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# tn.write("stream_enable\n")
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#
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#
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#
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# """
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# Pass some extra information to liquidsoap
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# """
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# tn.write("pl.pl_id '%s'\n" % p_id)
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# tn.write("pl.user_id '%s'\n" % user_id)
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tn.write("exit\n")
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print tn.read_all()
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status = 1
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sys.exit()
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# except Exception, e:
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# logger.error('%s', e)
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# status = 0
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if __name__ == '__main__':
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print
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print '#########################################'
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print '# *** pypo *** #'
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print '# obp python playout #'
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print '#########################################'
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print
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# initialize
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g = Global()
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g.selfcheck()
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po = Playout()
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run = True
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while run == True:
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logger = logging.getLogger("pypo")
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while options.pushpkey:
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try: po.push_liquidsoap(options.pushpkey)
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except Exception, e:
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print e
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sys.exit()
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while options.push:
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po.push_liquidsoap()
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sys.exit()
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