将Node.js脚本移植到Python
我想移植这个Node.js脚本来控制一个Sky框到Python， https://github.com/dalhundal/sky-remote/blob/master/sky-remote.js
我已经完成了，做了最好的，我可以做的，代码是在下面;
import time, math, socket, struct, time from array import array #sky q port 5900 class remote: commands={"power": 0, "select": 1, "backup": 2, "dismiss": 2, "channelup": 6, "channeldown": 7, "interactive": 8, "sidebar": 8, "help": 9, "services": 10, "search": 10, "tvguide": 11, "home": 11, "i": 14, "text": 15, "up": 16, "down": 17, "left": 18, "right": 19, "red": 32, "green": 33, "yellow": 34, "blue": 35, 0: 48, 1: 49, 2: 50, 3: 51, 4: 52, 5: 53, 6: 54, 7: 55, 8: 56, 9: 57, "play": 64, "pause": 65, "stop": 66, "record": 67, "fastforward": 69, "rewind": 71, "boxoffice": 240, "sky": 241} connectTimeout = 1000; def __init__(self, ip, port=49160): self.ip=ip self.port=port def showCommands(self): for command, value in self.commands.iteritems(): print str(command)+ " : "+str(value) def getCommand(self, code): try: return self.commands[code] except: print "Error: command '"+code+"' is not valid" return False def press (self, sequence): if isinstance(sequence, list): for item in sequence: toSend=self.getCommand(item) if toSend: self.sendCommand(toSend) time.sleep(0.5) else: toSend=self.getCommand(sequence) if toSend: self.sendCommand(toSend) def sendCommand(self, code): commandBytes = array('l', [4,1,0,0,0,0, int(math.floor(224 + (code/16))), code % 16]) try: client=socket.socket(socket.AF_INET, socket.SOCK_STREAM) except socket.error, msg: print 'Failed to create socket. Error code: ' + str(msg[0]) + ' , Error message : ' + msg[1] return try: client.connect((self.ip, self.port)) except: print "Failed to connect to client" return l=12 timeout=time.time()+self.connectTimeout while 1: data=client.recv(1024) data=data if len(data)<24: client.sendall(data[0:l]) l=1 else: client.sendall(buffer(commandBytes)) commandBytes[1]=0 client.sendall(buffer(commandBytes)) client.close() break if time.time() > timeout: print "timeout error" break 我认为这个问题是我如何形成缓冲区？ 我不完全确定，因为这是我第一次处理缓冲区。 阅读了新的Buffer的Node.js文档后，它看起来像创build了一个Octets数组，而我所拥有的是一个int数组，我可能是错的，但是Octet是8位，而int是4bits，试图改变arrays长和双，但这似乎并没有解决这个问题
有时间快速浏览一下Node.js如何处理缓冲区和缓冲区，看起来像我认为是正确的。
更改;
commandBytes = array('l', [4,1,0,0,0,0, int(math.floor(224 + (code/16))), code % 16])
至;
commandBytes = bytearray([4,1,0,0,0,0, int(math.floor(224 + (code/16))), code % 16])
另外，然后只是通过bytearray;
client.sendall(commandBytes)
代替;
client.sendall(buffer(commandBytes))