Python命令行参数：读取文件

Question

I just need to clear up some things: I have the following code:

 def map(csv_as_string ): colours = [] file = open(csv_as_string, 'rb') reader = csv.reader(file) your_list = list(reader) for j in range(1, len(your_list)): your_list[j][6] = fix(your_list[j][6]) N = float(most_populous(your_list, 6)) for i in range(1, len(your_list)): values = [] values.append(your_list[i][1]) values.append( col.rgb2hex( cm.hot( float(your_list[i][6])/N ) ) ) colours.append(values) return colours 

Now csv_as_string is obviously a csv file but if I want to run my program from command line with that csv file as my first argument can I just replace it with sys.argv([0]) or before the time say csv_as_string = sys.argv([0])

Thank you very much!

Answer 1

remove the () from argv ; it's an array, and you access array elements using the [] brackets.