/Python/Python delete duplicate lines in file

Python delete duplicate lines in file

with open("file.txt", "r") as txt_file:
  new_data = list(set(txt_file))
  return new_data

Txt file duplicate line remover python

lines_seen = set() # holds lines already seen

with open("file.txt", "r+") as f:
    d = f.readlines()
    f.seek(0)
    for i in d:
        if i not in lines_seen:
            f.write(i)
            lines_seen.add(i)
    f.truncate()

Source: stackoverflow.com

Similar codes

2 votes278 views2 answers
Instance variable in python
Python
0 vote292 views1 answer
Python calculator file size to megabytes
Python
0 vote272 views1 answer
Django not saving images forms
Python
2 votes280 views1 answer
Python itertools.permutations use too much memory
Python
11 votes286 views3 answers
Change column order dataframe python
Python
5 votes280 views4 answers
Python generator
Python
0 vote296 views1 answer
Sonido sfr200a
Python
-2 votes346 views1 answer
Jwt authentication python flask
Python Flask
6 votes279 views2 answers
How to append two numpy arrays
Python
0 vote292 views1 answer
How to fill an array with consecutive numbers python
Python