/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 vote155 views1 answer
Update All Python Packages On Windows
Python
0 vote176 views1 answer
Remove cog in discord.py
Python
1 vote130 views1 answer
Flask run app reset on change
Python Flask
0 vote144 views1 answer
Unreadable Notebook: jupyter
Python
60 votes139 views6 answers
Python Class Example
Python
7 votes146 views1 answer
Python xrange
Python
1 vote136 views1 answer
Euclidean division in python
Python
0 vote134 views1 answer
Django loginview?
Python
2 votes178 views2 answers
Django-admin command not found
Python Django
0 vote171 views2 answers
Wireframes and Surface Plots
Python