python get lines in file code example

Example 1: python 3 text file leng

f = open("filename", "r") #Load file in any mode that's able to read, ie r, r+, w+ etc

#to get length
len(f.readlines())

#To iterate over each line
for line in f.readlines(): #file.readlines(), splits the file into a list, where each element is a seperate line
  print(line)

Example 2: python read file line by line

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

Example 3: 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 4: python read lines

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

Example 5: how to know how much lines a file has using python

filename = "test.txt"
count = 0
with open(filename, 'r') as f:
    for line in f:
        count += 1
print("Total number of lines is:", count)

Example 6: print file line by line python

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