関連ワード:  how to delete line in file python    how to delete line in text file python    how to delete a line in a text file python    how to remove new line in file python    how to delete specific line in text file python    how to delete first line in text file python    how to remove empty lines in python file    how to delete row in csv file using python    how to remove line from text file in python    how to remove new line in csv file python