how to read a line in a file python code example

Example 1: python read file line by line

with open("file.txt") as file_in:
    lines = []
    for line in file_in:
        lines.append(line)

Example 2: python open and reacd file

with open('yourfile.txt','r') as f:
    lines = f.readlines()
    f.close()

Example 3: python read lines

f = open("filename")
lines = f.readlines()