python file read line by line 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 reading lines from a text file

with open(filename) as f:
    content = f.readlines()
# you may also want to remove whitespace characters like `\n` at the end of each line
content = [x.strip() for x in content]

Example 3: read line of a file in python

file1 = open('myfile.txt', 'r')#open the file (mode read)
count = 0 #used to count the lines

for line in Lines:
	line = file1.readline()#read a single line
    if not line:
    	break
    count += 1
    print("Line{}: {}".format(count, line))#print the lines with their number