从telnet读取的Python未捕获所有d

Question

所以我问了一个关于从seal流运行多个正则表达式的问题。python regular expression for multiple string values

现在我不得不从Telnet流中获取数据，而不是直接串行连接

这是一种工作，我能够得到结果张贴到我的数据库，并得到两个可用的正则表达式工作。在

问题是它缺少的部分，所以有时它的Telent流输出7行新的更新，我写的代码会拿起第一行，错过其余的，似乎是它挂在什么东西上，或者只是它不能处理Telnet流和发布到数据库足够快。在

这是目前为止的代码。出于安全考虑，

import serial, string, MySQLdb, re, pdb, telnetlib db = MySQLdb.connect(host="localhost", user="root", passwd="", db="walnut_farm") cur = db.cursor() HOST = "this is the ip or the telnet server i have removed" PORT = "7001" p = re.compile(ur'^BASE_RAD: NEW,(.*)#T(\d*)R-(\d*),(.*):T(\d*)R-(\d*),(.*);Q(\d*)V(\d*\.?\d*)S(\d*)C(\d*\.?\d*)(.*)') # Wind Speed and Temp p2 = re.compile(ur'^BASE_RAD: NEW,(.*)#T(\d*)R-(\d*),(.*):T(\d*)R-(\d*),(.*);Q(\d*)V(\d*\.?\d*)D(\d*)(.*)') # Digital Output def Push_Results_To_Database(): # Assigning variables to the array values Base_ID = Serial_Results.group(1) Base_Time_Stamp = Serial_Results.group(2) Base_Signal = Serial_Results.group(3) Repeater_ID = Serial_Results.group(4) Repeater_Time_Stamp = Serial_Results.group(5) Repeater_Signal = Serial_Results.group(6) Sensor_ID = Serial_Results.group(7) Sensor_Sequence = Serial_Results.group(8) Sensor_Input_Voltage = Serial_Results.group(9) if not digital_out: Sensor_Wind_Speed = Serial_Results.group(10) Sensor_Temperature = Serial_Results.group(11) Checksum = Serial_Results.group(12) # Execute the SQL query to INSERT the above variables into the Database cur.execute('INSERT INTO serial_values (Base_ID, Base_Time_Stamp, Base_Signal, Repeater_ID, Repeater_Time_Stamp, Repeater_Signal, Sensor_ID, Sensor_Sequence, Sensor_Input_Voltage, Sensor_Wind_Speed, Sensor_Temperature, Checksum) VALUES ("'+Base_ID+'", "'+Base_Time_Stamp+'", "'+Base_Signal+'", "'+Repeater_ID+'", "'+Repeater_Time_Stamp+'", "'+Repeater_Signal+'", "'+Sensor_ID+'", "'+Sensor_Sequence+'", "'+Sensor_Input_Voltage+'", "'+Sensor_Wind_Speed+'", "'+Sensor_Temperature+'", "'+Checksum+'")') db.commit() if digital_out: Sensor_Digital_Input = Serial_Results.group(10) Checksum = Serial_Results.group(11) # Execute the SQL query to INSERT the above variables into the Database cur.execute('INSERT INTO serial_values (Base_ID, Base_Time_Stamp, Base_Signal, Repeater_ID, Repeater_Time_Stamp, Repeater_Signal, Sensor_ID, Sensor_Sequence, Sensor_Input_Voltage, Sensor_Digital_Input, Checksum) VALUES ("'+Base_ID+'", "'+Base_Time_Stamp+'", "'+Base_Signal+'", "'+Repeater_ID+'", "'+Repeater_Time_Stamp+'", "'+Repeater_Signal+'", "'+Sensor_ID+'", "'+Sensor_Sequence+'", "'+Sensor_Input_Voltage+'", "'+Sensor_Digital_Input+'", "'+Checksum+'")') db.commit() try: tn = telnetlib.Telnet(HOST,PORT) except: print('Port Error!') else: while True: #pdb.set_trace() tn.write('ls \r\n') data = '' while data.find('#') == -1: data = tn.read_very_eager() ardString = data print data Serial_Output = ardString #pdb.set_trace() #for Serial_Output in Serial_Output.splitlines(): if re.match(p, Serial_Output): print "Match For Wind Speed and Temperature" digital_out = False Serial_Results = re.match(p, Serial_Output) Push_Results_To_Database() continue elif re.match(p2, Serial_Output): print "Match for Digital Output" digital_out = True Serial_Results = re.match(p2, Serial_Output) Push_Results_To_Database() continue else: continue #[1] `ATC001` = Base_ID #[2] `1412010472` = Base_Time_Stamp (EPOC TIME) #[3] `77` = Base_Signal #[4] `ATC005` = Repeater_ID #[5] `1412010460` = Repeater_Time_Stamp #[6] `70` = Repeater_Signal #[7] `SU0003` = Sensor_ID #[8] `6` = Sensor_Sequence #[9] `8.9` = Sensor_Input_Voltage #[10] `0` = Sensor_Wind_Speed #[11] `11.5` = Sensor_Temperature #[12] `*xx` = Checksum # http://regex101.com/r/dP6fE1/1

Answer 1

所以在发布这篇文章后，我已经解决了我的问题，我会留下来听听，以防对其他人有所帮助。在

这是上面的代码块

tn.write('ls \r\n') data = '' while data.find('#') == -1: data = tn.read_very_eager() ardString = data print data Serial_Output = ardString ；