python read file 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 read file line by line

file1 = open('myfile.txt', 'r')
Lines = file1.readlines()
# usage:
count = 0
for line in Lines:
    count += 1
    print("Line{}: {}".format(count, line.strip()))

Example 3: each line in a text file into a list in Python

with open('file1.txt','r') as f:
	listl=[]
	for line in f:
		strip_lines=line.strip()
		listli=strip_lines.split()
		print(listli)
		m=listl.append(listli)
	print(listl)

Example 4: 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 5: how to read a text file line by line in python

# Open the file with read only permit
f = open('my_text_file.txt')
# use readline() to read the first line 
line = f.readline()
# use the read line to read further.
# If the file is not empty keep reading one line
# at a time, till the file is empty
while line:
    # in python 2+
    # print line
    # in python 3 print is a builtin function, so
    print(line)
    # use realine() to read next line
    line = f.readline()
f.close()

Example 6: print file line by line python

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