try to visulize the genotype but got error

[LinzheCAI]

I 'd like to know the meaning of this code in line 42 visualize

if len(sys.argv) != 2:

The result of the visualization of genotype always show as follow:

usage:
python darts-master/darts-master/cnn/visualize.py ARCH_NAME

Process finished with exit code 1

[wby17177]

You need to run visualize.py in cmd, just like this: python visualize.py DARTS