python how to count the lines in a file
# Basic syntax:
count = len(open('/path/to/the/file.ext').readlines())python how to count the lines in a file
# Basic syntax:
count = len(open('/path/to/the/file.ext').readlines())Write a Python program to count the number of lines in a text file.
def countlines(fname,mode='r+'):
count=0
with open(fname) as f:
for _ in f:
count += 1
print('total number of lines in file : ',count)
countlines('file1.txt')
##########################
with open('file1.txt') as f:
print(sum(1 for _ in f))
##########################
with open('file1.txt') as f:
for lno , line in enumerate(f,1):
pass
print('total lines:',lno)
###########################
'''You can use len(f.readlines()),
but this will create an additional list in memory,
which won't even work on huge files that don't fit in memory.
'''write number of lines in file python
fname = "test.txt"
count = 0
with open(fname, 'r') as f:
for line in f:
count += 1
print("Total number of lines is:", count)Copyright © 2021 Codeinu
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