Python TypeError: missing 2 required positional arguments // How can I fix it?

Question

我有这个TypeError: capture_and_decode() missing 2 required positional arguments: 'bitrange' and 'axes'

我的代码是这个：

def capture_and_decode(self, bitrange, axes):
    cam_width, cam_height = self.camera.resolution
    scr_range = self.display.displaywindow.resolution
    self.raw_images = numpy.empty((len(axes), cam_height, cam_width, bitrange))

    for axis in axes:

       for bits in range(0,bitrange):
           stripe_width = cam_width // 2 ** (bits + 1)
           print(stripe_width)
           binary = numpy.fromiter(GrayCode(bits + 1).generate_gray(), dtype=numpy.int) % 2
           vector = numpy.repeat(binary, stripe_width)
           img = numpy.tile(vector, (cam_height, 1))

       self.display.displaywindow.show(img)  
       time.sleep(0.25)
       self.raw_images[axis, :, :, bits] = self.camera.capture()

错误在最后一行。

Answer 1

看起来你的代码是这样的：

obj.capture_and_decode()

第一个参数 (self) 已为您提供，但您需要考虑其他两个参数

如果它们是可选的，请更改您的函数定义以包括默认值，例如：

def capture_and_decode(self, bitrange=10, axes=[])

Answer 2

您的 capture_and_decode() 方法旨在采用两个位置参数；即位域和轴。无论您在何处调用此方法，都需要提供以下参数：

 cam = CameraClass()
 cam.capture_and_decode(500, 4) # or whatever the values should be.

Python TypeError: missing 2 required positional arguments // How can I fix it?

Python TypeError: missing 2 required positional arguments // How can I fix it?

python

typeerror

python-3.x

anaconda