"'NumberHandler' object has no attribute 'arrayByteCount'" Error

[lion117]

Describe the bug
When I run those demos , only tu1 and tu2 could work. the left demo report error .

Expected behavior
here is my error report

Traceback (most recent call last):
  File "src\wrapper.pyx", line 66, in OpenGL_accelerate.wrapper.CArgCalculatorElement.c_call
  File "D:\Anaconda3\lib\site-packages\OpenGL\GL\images.py", line 499, in __call__
    return arraydatatype.ArrayDatatype.arrayByteCount(arg)
  File "src\arraydatatype.pyx", line 257, in OpenGL_accelerate.arraydatatype.ArrayDatatype.arrayByteCount
AttributeError: ("'NumberHandler' object has no attribute 'arrayByteCount'", 6, <OpenGL.platform.baseplatform.glCompressedTexImage2D object at 0x000000000BD590D8>)

Desktop (please complete the following information):

• OS: windows 7 sp1
• python37

I had fix some grammar error . but I had no idea about this error. Any suggestion?

[jcteng]

version problem, this demo only works on python27x ,do not use python3x

[chaojijun52]

I've got these demos work on python2.7 in linux except tu_04_1_ue4model.py. To get rid of the issue asked in this topic, you need to remove the parameter "size" from the method "glCompressedTexImage2D":
`glCompressedTexImage2D(GL_TEXTURE_2D, level, format, width, height,
0, ddsbuffer[offset:offset+size])
#glCompressedTexImage2D(GL_TEXTURE_2D, level, format, width, height,

0, size, ddsbuffer[offset:offset + size])`

Then you got it run.