459 lines
16 KiB
Python
459 lines
16 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# This file is part of sensors2osc package
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#
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# sensors2osc is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# sensors2osc is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with sensors2osc. If not, see <http://www.gnu.org/licenses/>.
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#
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# found the mjpeg part here, thanks for the nice code :)
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# http://hardsoftlucid.wordpress.com/2013/04/11/mjpeg-server-for-webcam-in-python-with-opencv/
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# the osc integration stuff is implemented by me
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#
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# Copyright (C) 2014 Stefan Kögl
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from __future__ import absolute_import
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from datetime import datetime
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import threading
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import Queue
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import traceback
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import numpy as np
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import string
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import time
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import random
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import socket
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import os.path
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from os import curdir, sep
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from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
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from SocketServer import ThreadingMixIn, ForkingMixIn
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import select
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import re
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from collections import deque
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from PyQt4.QtCore import QBuffer, QByteArray, QIODevice
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from PyQt4 import QtGui, QtCore
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import pyqtgraph as pg
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from pyqtgraph.widgets.PlotWidget import PlotWidget
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from chaosc.argparser_groups import *
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from chaosc.lib import resolve_host
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try:
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from chaosc.c_osc_lib import *
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except ImportError:
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from chaosc.osc_lib import *
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try:
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from chaosc.c_osc_lib import decode_osc
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except ImportError as e:
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print(e)
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from chaosc.osc_lib import decode_osc
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class PlotWindow(PlotWidget):
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def __init__(self, title=None, **kargs):
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self.win = QtGui.QMainWindow()
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PlotWidget.__init__(self, **kargs)
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self.win.setCentralWidget(self)
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for m in ['resize']:
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setattr(self, m, getattr(self.win, m))
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if title is not None:
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self.win.setWindowTitle(title)
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class OSCThread(threading.Thread):
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def __init__(self, args):
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super(OSCThread, self).__init__()
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self.args = args
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self.running = True
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self.own_address = resolve_host(args.own_host, args.own_port, args.address_family)
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self.chaosc_address = chaosc_host, chaosc_port = resolve_host(args.chaosc_host, args.chaosc_port, args.address_family)
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self.osc_sock = socket.socket(args.address_family, 2, 17)
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self.osc_sock.bind(self.own_address)
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self.osc_sock.setblocking(0)
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print "%s: starting up osc receiver on '%s:%d'" % (
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datetime.now().strftime("%x %X"), self.own_address[0], self.own_address[1])
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self.subscribe_me()
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def subscribe_me(self):
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"""Use this procedure for a quick'n dirty subscription to your chaosc instance.
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:param chaosc_address: (chaosc_host, chaosc_port)
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:type chaosc_address: tuple
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:param receiver_address: (host, port)
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:type receiver_address: tuple
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:param token: token to get authorized for subscription
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:type token: str
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"""
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print "%s: subscribing to '%s:%d' with label %r" % (datetime.now().strftime("%x %X"), self.chaosc_address[0], self.chaosc_address[1], self.args.subscriber_label)
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msg = OSCMessage("/subscribe")
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msg.appendTypedArg(self.own_address[0], "s")
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msg.appendTypedArg(self.own_address[1], "i")
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msg.appendTypedArg(self.args.authenticate, "s")
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if self.args.subscriber_label is not None:
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msg.appendTypedArg(self.args.subscriber_label, "s")
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self.osc_sock.sendto(msg.encode_osc(), self.chaosc_address)
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def unsubscribe_me(self):
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if self.args.keep_subscribed:
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return
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print "%s: unsubscribing from '%s:%d'" % (datetime.now().strftime("%x %X"), self.chaosc_address[0], self.chaosc_address[1])
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msg = OSCMessage("/unsubscribe")
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msg.appendTypedArg(self.own_address[0], "s")
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msg.appendTypedArg(self.own_address[1], "i")
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msg.appendTypedArg(self.args.authenticate, "s")
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self.osc_sock.sendto(msg.encode_osc(), self.chaosc_address)
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def run(self):
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while self.running:
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reads, writes, errs = select.select([self.osc_sock], [], [], 0.05)
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if reads:
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osc_input = self.osc_sock.recv(256)
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osc_address, typetags, messages = decode_osc(osc_input, 0, len(osc_input))
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#print "thread osc_address", osc_address
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if osc_address.find("ekg") != -1 or osc_address.find("plot") != -1:
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queue.put_nowait((osc_address, messages))
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else:
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queue.put_nowait(("/bjoern/ekg", [0]))
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queue.put_nowait(("/merle/ekg", [0]))
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queue.put_nowait(("/uwe/ekg", [0]))
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self.unsubscribe_me()
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print "OSCThread is going down"
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queue = Queue.Queue()
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class Actor(object):
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shadowPen = pg.mkPen(255, 255, 255)
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brush = pg.mkBrush("w")
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def __init__(self, name, num_data, color):
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self.data = [0] * num_data
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self.data_pointer = 0
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self.name = name
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self.active = True
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self.plotItem = pg.PlotCurveItem(pen=pg.mkPen(color, width=3), name=name)
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self.num_data = num_data
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#self.plotItem.setShadowPen(pen=Actor.shadowPen, width=3, cosmetic=True)
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self.plotPoint = pg.ScatterPlotItem(pen=Actor.shadowPen, brush=self.brush, size=5)
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def __str__(self):
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return "<Actor name:%r, active=%r, position=%r>" % (self.name, self.active, self.data_pointer)
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__repr__ = __str__
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def scale_data(self, ix, max_items):
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scale = 255 / max_items * ix
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return [value / max_items + scale for value in self.data]
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def set_point(self, value, ix, max_items):
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scale = 255 / max_items * ix
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self.plotPoint.setData(x = [self.data_pointer], y = [value / max_items + scale])
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#def find_max_value(self, item_data):
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#max_index = -1
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#for ix, i in enumerate(item_data):
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#if i > 250:
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#return ix, i
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#return None, None
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#def rearrange(self, item_data, actual_pos, max_items):
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#max_value_index, max_value = find_max_value(item_data)
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#if max_value_index is None:
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#return actual_pos
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#mean = int(max_items / 2.)
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#start = mean - max_value_index
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#if start != 0:
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#item_data.rotate(start)
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#pos = (actual_pos + start) % max_items
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#else:
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#pos = actual_pos
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#print "rearrange", mean, start, actual_pos, pos, item_data
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#return pos
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def set_value(self, value):
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self.data[self.data_pointer] = value
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self.data_pointer = (self.data_pointer + 1) % self.num_data
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#def resize(item_data, max_length, new_max_length, pos):
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#print "resize", max_length, new_max_length
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#if new_max_length < 15:
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#return max_length, pos
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#if new_max_length > max_length:
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#pad = (new_max_length - max_length)
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#print "pad", pad
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#for i in range(pad):
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#if i % 2 == 0:
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#item_data.append(0)
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#else:
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#item_data.appendleft(0)
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#pos += 1
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#return new_max_length, pos
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#elif new_max_length < max_length:
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#pad = (max_length - new_max_length)
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#for i in range(pad):
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#if i % 2 == 0:
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#item_data.pop()
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#if pos >= new_max_length:
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#pos = 0
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#else:
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#item_data.popleft()
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#if pos > 0:
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#pos -= 1
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#return new_max_length, pos
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#return max_length, pos
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class EkgPlot(object):
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def __init__(self, actor_names, num_data, colors):
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self.plot = pg.PlotWidget(title="<h1>EKG</h1>")
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self.plot.hide()
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self.plot.setLabel('left', "<h2>Amplitude</h2>")
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self.plot.setLabel('bottom', "<h2><sup>Time</sup></h2>")
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self.plot.showGrid(True, True)
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self.plot.setYRange(0, 255)
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self.plot.setXRange(0, num_data)
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self.plot.resize(1280, 720)
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ba = self.plot.getAxis("bottom")
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bl = self.plot.getAxis("left")
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ba.setTicks([])
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bl.setTicks([])
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self.active_actors = list()
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self.actors = dict()
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self.lengths1 = [0]
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self.num_data = num_data
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for actor_name, color in zip(actor_names, colors):
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self.add_actor(actor_name, num_data, color)
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self.set_positions()
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self.ekg_regex = re.compile("^/(.*?)/ekg$")
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self.ctl_regex = re.compile("^/plot/(.*?)$")
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self.updated_actors = set()
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def add_actor(self, actor_name, num_data, color):
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actor_obj = Actor(actor_name, num_data, color)
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self.actors[actor_name] = actor_obj
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self.plot.addItem(actor_obj.plotItem)
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self.plot.addItem(actor_obj.plotPoint)
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self.active_actors.append(actor_obj)
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def set_positions(self):
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for ix, actor_obj in enumerate(self.active_actors):
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actor_obj.plotItem.setPos(0, ix * 6)
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actor_obj.plotPoint.setPos(0, ix * 6)
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def active_actor_count(self):
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return len(self.active_actors)
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def update(self, osc_address, value):
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#print "update", osc_address
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res = self.ekg_regex.match(osc_address)
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if res:
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#print("matched data")
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actor_name = res.group(1)
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actor_obj = self.actors[actor_name]
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max_actors = len(self.active_actors)
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actor_data = actor_obj.data
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data_pointer = actor_obj.data_pointer
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actor_data[data_pointer] = value
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try:
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ix = self.active_actors.index(actor_obj)
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actor_obj.set_point(value, ix, max_actors)
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actor_obj.plotItem.setData(y=np.array(actor_obj.scale_data(ix, max_actors)), clear=True)
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except ValueError as e:
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#print("data", e)
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pass
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actor_obj.data_pointer = (data_pointer + 1) % self.num_data
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return
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res = self.ctl_regex.match(osc_address)
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if res:
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print "received cmd", osc_address
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actor_name = res.group(1)
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actor_obj = self.actors[actor_name]
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if value == 1 and not actor_obj.active:
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print "actor on", actor_name, self.active_actors
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self.plot.addItem(actor_obj.plotItem)
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self.plot.addItem(actor_obj.plotPoint)
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actor_obj.active = True
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if not actor_obj in self.active_actors:
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self.active_actors.append(actor_obj)
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elif value == 0 and actor_obj.active:
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print "actor off", actor_name, self.active_actors
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actor_obj.active = False
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self.plot.removeItem(actor_obj.plotItem)
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self.plot.removeItem(actor_obj.plotPoint)
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try:
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self.active_actors.remove(actor_obj)
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except ValueError as e:
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print "active actors error", e, self.active_actors
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pass
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assert actor_obj not in self.active_actors
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else:
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print "internal data not in sync", self.active_actors, actor_obj
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self.set_positions()
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class MyHandler(BaseHTTPRequestHandler):
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def do_GET(self):
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try:
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self.path=re.sub('[^.a-zA-Z0-9]', "",str(self.path))
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if self.path=="" or self.path==None or self.path[:1]==".":
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self.send_error(403,'Forbidden')
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if self.path.endswith(".html"):
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directory = os.path.dirname(os.path.abspath(__file__))
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data = open(os.path.join(directory, self.path), "rb").read()
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self.send_response(200)
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self.send_header('Content-type', 'text/html')
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self.end_headers()
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self.wfile.write(data)
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elif self.path.endswith(".mjpeg"):
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self.thread = thread = OSCThread(self.server.args)
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thread.daemon = True
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thread.start()
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actor_names = ["bjoern", "merle", "uwe"]
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num_data = 100
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colors = ["r", "g", "b"]
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qtapp = QtGui.QApplication([])
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plotter = EkgPlot(actor_names, num_data, colors)
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self.send_response(200)
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self.send_header("Content-Type", "multipart/x-mixed-replace; boundary=--aaboundary")
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self.end_headers()
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#lastTime = time.time()
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#fps = None
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event_loop = QtCore.QEventLoop()
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while 1:
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event_loop.processEvents()
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qtapp.sendPostedEvents(None, 0)
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while 1:
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try:
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osc_address, args = queue.get_nowait()
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except Queue.Empty:
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break
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plotter.update(osc_address, args[0])
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exporter = pg.exporters.ImageExporter.ImageExporter(plotter.plot.plotItem)
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img = exporter.export("tmpfile", True)
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buffer = QBuffer()
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buffer.open(QIODevice.WriteOnly)
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img.save(buffer, "JPG", 100)
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JpegData = buffer.data()
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self.wfile.write("--aaboundary\r\nContent-Type: image/jpeg\r\nContent-length: %d\r\n\r\n%s\r\n\r\n\r\n" % (len(JpegData), JpegData))
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del JpegData
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del buffer
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del img
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del exporter
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#now = time.time()
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#dt = now - lastTime
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#lastTime = now
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#if fps is None:
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#fps = 1.0/dt
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#else:
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#s = np.clip(dt*3., 0, 1)
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#fps = fps * (1-s) + (1.0/dt) * s
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#print '%0.2f fps' % fps
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elif self.path.endswith(".jpeg"):
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directory = os.path.dirname(os.path.abspath(__file__))
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data = open(os.path.join(directory, self.path), "rb").read()
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self.send_response(200)
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self.send_header('Content-type','image/jpeg')
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self.end_headers()
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self.wfile.write(data)
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return
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except (KeyboardInterrupt, SystemError):
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print "queue size", queue.qsize()
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thread.running = False
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thread.join()
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except IOError, e:
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print "ioerror", e
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print '-'*40
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print 'Exception happened during processing of request from'
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traceback.print_exc() # XXX But this goes to stderr!
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print '-'*40
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self.send_error(404,'File Not Found: %s' % self.path)
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class JustAHTTPServer(HTTPServer):
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pass
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def main():
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arg_parser = ArgParser("ekgplotter")
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own_group = arg_parser.add_main_group()
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arg_parser.add_argument(own_group, '-x', "--http_host", default="::",
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help='my host, defaults to "::"')
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arg_parser.add_argument(own_group, '-X', "--http_port", default=9000,
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type=int, help='my port, defaults to 9000')
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arg_parser.add_chaosc_group()
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add_subscriber_group()
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args = arg_parser.finalize()
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http_host, http_port = resolve_host(args.http_host, args.http_port, args.address_family)
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server = JustAHTTPServer((http_host, http_port), MyHandler)
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server.address_family = args.address_family
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server.args = args
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print "%s: starting up http server on '%s:%d'" % (
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datetime.now().strftime("%x %X"), http_host, http_port)
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try:
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server.serve_forever()
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except KeyboardInterrupt:
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print '^C received, shutting down server'
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server.socket.close()
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sys.exit(0)
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if __name__ == '__main__':
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main()
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