Read each value one by one in a column with respect to another values in another column from a text file

Question

For example, I have a text file like this. There are three columns.

data 5 0.1
data 4 0.2
data 2 0.3
data 1 0.5

Codes I have:

for line in open("myfile.txt", "r").readlines():
    line = line.split()
    if len(line)>1 and line[0] == 'data':
        time = line[1]
        volume = line[2]
        volume_per_time=float(volume)/float(time)
print(volume_per_time)

I want to print the volume_per_time in a while loop. ie I want to call the 3nd column 1st value with respect to 2nd column 1st value. And then one by one with loop function.

Answer 1

you can insert the calculated value to an array and use it for the plotting.

volume_per_time = []
for line in open("myfile.txt", "r").readlines():
    line = line.split()
    if len(line)>1 and line[0] == 'data':
        time = line[1]
        volume = line[2]
        volume_per_time.append(float(volume)/float(time))

print(volume_per_time)