one liner for removing blank lines from a file in python?

Question

I'm looking for one liner which will remove all the blank lines from a file in python. python equivalent for --> grep -v '^$' file_name > file_name

Answer 1

lines = [i for i in open(file_path) if i[:-1]]

If writing to another file is a requirement, you can use file_object.writelines(lines) with opening file for writing.