我对Python来说还很陌生，并且受命完成最近退出的某人的代码，并且出现以下错误：
Vaisala实例没有属性连接错误。
代码很长，但是我在这里包括了我认为最重要的部分。
BackTrace： 第1656行，位于read_instrument self.conn.sendall（'CRH \ r \ n'）
class Vaisala:
def __init__(self, ip='192.168.5.49', port=23):
self.l = re.compile(r"(\w+)=\s*(-?\d+.?\d+)\s([\'\\\/\%0-9a-zA-Z]+)")
self.ip = ip
self.port = int(port)
self.conn = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.conn.connect((self.ip, self.port))
# Retrieve Intrument Information
self.conn.sendall('?\r\n')
time.sleep(0.5)
resp = self.conn.recv(1024)
info = resp.split('\r\n')
self.meta_data = {
'model':info[3].split('/')[0].replace(' ',''),
'firmware':info[3].split('/')[1].replace(' ',''),
'serial_number': info[4].split(':')[1].replace(' ',''),
'batch_number':info[5].split(':')[1].replace(' ',''),
'cal_date':info[6].split(':')[1].replace(' ',''),
'cal_location':info[7].split(':')[1].replace(' ',''),
'pressure':info[14].split(':')[1].strip(),
}
print "\nVaisala: {0}".format(self.meta_data['model'])
print "Serial Number: {0}".format(self.meta_data['serial_number'])
print "Calibration Date: {0}".format(self.meta_data['cal_date'])
print "Calibration Location: {0}\n".format(self.meta_data['cal_location'])
self.cal_mode = False
self.read()
def ready_instrument(self, setpoints=[]):
# Number of sample to determine if stable
samples = 30
if not self.cal_mode:
self.conn.sendall('CRH\r\n')
time.sleep(0.1)
resp = self.conn.recv(1024)
# Parse Response
s = re.findall(r'\d+.?\d+', resp)
stable = False
start_time = time.time()
while not stable:
data =[]
for i in range(samples):
self.conn.sendall('c\r\n')
time.sleep(1)
resp = self.conn.recv(1024)
data.append(float(re.findall(r'\d+.?\d+', resp)[0]))
if stdev(data) <0.2:
stable=True
if time.time() - start_time > 3600:
print "\nFailed to stabilize\n"
raise
self.ready_for_setpoint= True