使用眼睛凝视运行光标移动的python代码时出错

Question

from pymouse.windows import PyMouse
import zmq
#from pymouse import PyMouse

#mouse setup
m = PyMouse()
x_dim, y_dim = m.screen_size()

#network setup
context = zmq.Context()
socket = context.socket(zmq.SUB)
socket.connect("tcp://127.0.0.1:5000")
#filter by messages by stating string 'STRING'. '' receives all messages
socket.setsockopt(zmq.SUBSCRIBE, '')
smooth_x, smooth_y= 0.5, 0.5

while True:
    msg = socket.recv()
    items = msg.split("\n") 
    msg_type = items.pop(0)
    items = dict([i.split(':') for i in items[:-1] ])
    if msg_type == 'Pupil':
        try:
            my_gaze = items['norm_gaze']

            if my_gaze != "None":
                 raw_x,raw_y = map(float,my_gaze[1:-1].split(','))

                # smoothing out the gaze so the mouse has smoother movement
                smooth_x += 0.5 * (raw_x-smooth_x)
                smooth_y += 0.5 * (raw_y-smooth_y)

                x = smooth_x
                y = smooth_y

                y = 1-y # inverting y so it shows up correctly on screen
                x *= x_dim
                y *= y_dim

                x = min(x_dim-10, max(10,x))
                y = min(y_dim-10, max(10,y))

                m.move(x,y)
        except KeyError:
            pass
    else:
        # process non gaze position events from plugins here
        pass`

在这里运行此代码时出现错误：

runfile('C:/Users/Richa Agrawal/Downloads/Compressed/Computer_Vision_A_Z_Template_Folder/Code_for_Windows/Code for Windows/what.py', wdir='C:/Users/Richa Agrawal/Downloads/Compressed/Computer_Vision_A_Z_Template_Folder/Code_for_Windows/ Windows 代码') Traceback（最近一次调用最后一次）：

文件“”，第 1 行，在 runfile('C:/Users/Richa Agrawal/Downloads/Compressed/Computer_Vision_A_Z_Template_Folder/Code_for_Windows/Code for Windows/what.py', wdir='C:/Users/Richa Agrawal/Downloads/Compressed/Computer_Vision_A_Z_Template_Folder/Code_for_Windows/Windows 代码')

文件“C:\ProgramData\Anaconda3\lib\site-packages\spyder\utils\site\sitecustomize.py”，第 880 行，在运行文件中 execfile(文件名，命名空间)

文件“C:\ProgramData\Anaconda3\lib\site-packages\spyder\utils\site\sitecustomize.py”，第 102 行，在 execfile exec（编译（f.read（），文件名，'exec'），命名空间）

文件“C:/Users/Richa Agrawal/Downloads/Compressed/Computer_Vision_A_Z_Template_Folder/Code_for_Windows/Code for Windows/what.py”，第 20 行，在 socket.setsockopt(zmq.SUBSCRIBE, '')

文件“zmq/backend/cython/socket.pyx”，第 374 行，在 zmq.backend.cython.socket.Socket.set (zmq\backend\cython\socket.c:4610)中

TypeError: unicode not allowed，使用 setsockopt_string

Answer 1

setsockopt 需要 int 或 bytes 对象，但您传递的是 unicode 对象。

错误信息告诉你该怎么做：使用setsockopt_string。

socket.setsockopt_string(zmq.SUBSCRIBE, '')

或者，您可以将bytes 对象传递给setsockopt：

socket.setsockopt(zmq.SUBSCRIBE, b'')

注意b 前缀。