CSV 文件列最小值 python

Question

Name  Gender Physics Maths
 A             45     55
 X             22     64

I have a csv file like the above. I want to find things like min, max etc based on subject I have figured out the list in the form [[A, 45, 55],[X, 22, 64]]

How do I separate the individual columns either from this list or from the whole csv file

I want to do this without csv module or pandas

for line in filename:
    line2 = line.strip()
    line2 = line2.split(',')
    line_min = min(float(i) for i in line2)
    minimum_marks.append(line_min)
    #minimum_marks.append(minimum_grades)

    print(minimum_marks)

I am getting an error

line_min = min(float(i) for i in line2)

ValueError: could not convert string to float: 'C'

Answer 1

 line_min = min(float(i) for i in line2)

ValueError: could not convert string to float: 'C'

line2 is a list that looks something like this:

['Name', '88', '90']

Note that the first element is a name and can't be converted into an integer, so to fix your code use:

 line_min = min(float(i) for i in line2[1:])

To remove the first item of the list