How can I replace map() function with list comprehension or for loop?

Question

How can I write this code without using map()

k1=list(map(float,lines[1].split(", ")[1:]))

Answer 1

You want to call float() function over every element of lines[1].split(", ")[1:]

k1 = [float(x) for x in lines[1].split(", ")[1:]]

Answer 2

You can use a for loop:

k1 = []
for x in lines[1].split(', ')[1:]:
    k1.append(float(x))