/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

0 vote161 views1 answer
Python add month datetime
Python
5 votes140 views6 answers
Pytube python
Python
5 votes163 views2 answers
Append string variable with integer python
Python
9 votes150 views6 answers
Join pandas dataframe by column
Python
0 vote159 views2 answers
How to make a bill in python
Python
2 votes169 views2 answers
Argparse multiple arguments as list
Python
0 vote174 views1 answer
How to take total count of words in the list python
Python
11 votes153 views5 answers
Python Ordered Dictionary
Python
1 vote109 views1 answer
Plus months onto python date
Python
0 vote174 views1 answer
How to make bak files with python
Python