如何修复 TypeError:python 3.4、pyserial 2.7 虚拟串口中需要一个整数 [英] How to Fix TypeError: an integer is required in python 3.4, pyserial 2.7 virtual serial port

问题描述

已编辑

你好程序员社区，
我在处理 Python 3.4 中的 pyserial 时遇到了一些问题首先我没有串口，所以我使用Eltima Software的Virtual Serial Port Driver 7.2"来成对创建虚拟串口，这意味着我可以尝试从这些端口发送和接收数据，在我的情况下我只是创建COM1 连接到 COM2，然后我通过 HW 组安装 Hercules SETUP 实用程序来监控这些串口，

所以理论上，如果我在 PYTHON 中发送(写入)数据，我可以在 HERCULES 中看到它，如此链接所示 https://www.youtube.com/watch?v=DItyttmpRtY

我正在尝试创建自己的代码

def mInitizalise():set_ser = serial.Serial(端口=COM1"，波特率=9600，奇偶校验 = serial.PARITY_NONE,stopbits=serial.STOPBITS_ONE,字节大小 = 串行.EIGHTBITS，超时=1)set_ser.close()set_ser.open()如果 set_ser.isOpen():打印('打开:' + set_ser.portstr)temp = input('输入要发送的内容，按回车:\r\n')set_ser.write(temp)set_ser.close()

购买有误

<预><代码>>>>>>>打开:COM1输入您要发送的内容，按回车键:你好Tkinter 回调中的异常回溯(最近一次调用最后一次):文件C:\Python34\lib\idlelib\run.py"，第 121 行，在 mainseq, request = rpc.request_queue.get(block=True, timeout=0.05)文件C:\Python34\lib\queue.py"，第 175 行，在 get提高空队列.空在处理上述异常的过程中，又发生了一个异常:回溯(最近一次调用最后一次):文件C:\Users\me\Downloads\SerialTest.py"，第 25 行，在 <module> 中.ser.write(temp)文件C:\Python34\lib\site-packages\serial\serialwin32.py"，第283行，写入数据 = to_bytes(data)文件C:\Python34\lib\site-packages\serial\serialutil.py"，第 76 行，to_bytesb.append(item) # 这个处理我们模拟的 int 和 str 以及 Python 3.x 的 ints类型错误:需要一个整数

谁能帮帮我

在此先感谢您的帮助

解决方案

我想通了，----------tricky python---------请拉我上来看看我的其他问题(当然有答案)

ok 先单行分配串口不会像

#方法一set_ser = serial.Serial(port="COM1", baudrate=9600, parity = serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE, bytesize = serial.EIGHTBITS, timeout=1)

这样写

#方法二set_ser = serial.Serial()set_ser.port="COM1"set_ser.baudrate=9600set_ser.parity = serial.PARITY_NONEset_ser.stopbits=serial.STOPBITS_ONEset_ser.bytesize = serial.EIGHTBITSset_ser.timeout=1

然后使用方法2

第二个棘手的部分是这条线

set_ser.write(temp1.encode('utf-8'))

当 Python 分配命令 .write 它必须有 .endcode() 或 .encode('utf-8') 或 ('hex') 或 ('ascii') 等检查此链接https://docs.python.org/2/library/codecs.html#标准编码还有这个http://www.tutorialspoint.com/python/string_encode.htm

现在最终的代码是

def mSend():全局 set_ser，一个set_ser = serial.Serial()set_ser.port="COM1"set_ser.baudrate=9600set_ser.parity = serial.PARITY_NONEset_ser.stopbits=serial.STOPBITS_ONEset_ser.bytesize = serial.EIGHTBITSset_ser.timeout=1打印('打开:' + set_ser.portstr)一 = 0而 a==0:temp = input('写打开\r\r')如果(温度==打开"):set_ser.close()set_ser.open()而 set_ser.isOpen():temp1 = input('输入要发送的内容，按回车:\r\n')set_ser.write(temp1.encode('utf-8'))如果(temp1 ==关闭"):set_ser.close()打印('\n\n关闭')一 = 1elif(温度==关闭"):set_ser.close()一 = 1别的:打印('除非你写打开或关闭你不能移动')

一个按钮可以调用这个函数(这段代码)，它会打开串口，发送数据直到用户写关闭"

EDITED

Hello programmers Community,
I have some problems dealing with pyserial in Python 3.4 first I do not have serial ports so I have used "Virtual Serial Port Driver 7.2 by Eltima Software" to create virtual serial ports in pairs, which means that I can try to send and receive data from these ports, in my case I just create COM1 connected to COM2, then I installed Hercules SETUP utility by HW group to monitor these serial ports,

so IN THEORY IF I SEND(write) DATA IN PYTHON I CAN SEE IT IN HERCULES AS THIS LINK SHOWS https://www.youtube.com/watch?v=DItyttmpRtY

I was trying to create my own code

def mInitizalise():
 set_ser = serial.Serial(port="COM1", baudrate=9600, 
                         parity = serial.PARITY_NONE,
                         stopbits=serial.STOPBITS_ONE,
                         bytesize = serial.EIGHTBITS,
                         timeout=1)
 set_ser.close()
 set_ser.open()
 if set_ser.isOpen():
     print ('Open: ' + set_ser.portstr)
     temp = input('Type what you want to send, hit enter:\r\n')
     set_ser.write(temp)
 set_ser.close()

Buy there is an error

>>> 
>>> Open: COM1
Type what you want to send, hit enter:
hello
Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Python34\lib\idlelib\run.py", line 121, in main
    seq, request = rpc.request_queue.get(block=True, timeout=0.05)
  File "C:\Python34\lib\queue.py", line 175, in get
    raise Empty
queue.Empty

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\me\Downloads\SerialTest.py", line 25, in <module>
    ser.write(temp)
  File "C:\Python34\lib\site-packages\serial\serialwin32.py", line 283, in write
    data = to_bytes(data)
  File "C:\Python34\lib\site-packages\serial\serialutil.py", line 76, in to_bytes
    b.append(item)  # this one handles int and str for our emulation and ints for Python 3.x
TypeError: an integer is required

CAN SOMEBODY HELP ME

thanks beforehand for your help

解决方案

I figure it out, ----------tricky python--------- please pull me up, and check my other questions (with answers of course)

ok first assigning the serial port in a single line will not work as good as

#Method 1
set_ser = serial.Serial(port="COM1", baudrate=9600, parity = serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE, bytesize = serial.EIGHTBITS, timeout=1)

writing it in this way

#Method 2
set_ser = serial.Serial()
set_ser.port="COM1"
set_ser.baudrate=9600
set_ser.parity = serial.PARITY_NONE
set_ser.stopbits=serial.STOPBITS_ONE
set_ser.bytesize = serial.EIGHTBITS
set_ser.timeout=1

then USE method 2

second tricky part is this line

set_ser.write(temp1.encode('utf-8'))

when Python assign the command .write IT MUST HAVE .endcode() or .encode('utf-8') or ('hex') or ('ascii') etc check this link https://docs.python.org/2/library/codecs.html#standard-encodings and this one http://www.tutorialspoint.com/python/string_encode.htm

now the final code is

def mSend():
  global set_ser, a
  set_ser = serial.Serial()
  set_ser.port="COM1"
  set_ser.baudrate=9600
  set_ser.parity = serial.PARITY_NONE
  set_ser.stopbits=serial.STOPBITS_ONE
  set_ser.bytesize = serial.EIGHTBITS
  set_ser.timeout=1
  print ('Open: ' + set_ser.portstr)
  a = 0
  while a==0:
    temp = input('write open\r\r')
    if (temp == "open"):
      set_ser.close()
      set_ser.open()
      while set_ser.isOpen():
        temp1 = input('Type what you want to send, hit enter:\r\n')
        set_ser.write(temp1.encode('utf-8'))
        if (temp1 == "close"):
          set_ser.close()
          print ('\n\nClosed')
          a = 1
    elif (temp == "close"):
      set_ser.close()
      a = 1
    else:
      print ('unless you write open or close you can not move')

a button can call this function (this code) and it will open the serial port, send data until the user write "close"

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