python - How to remove trailing whitespace in code, using another script?

Question

Something like:

import fileinput

for lines in fileinput.FileInput("test.txt", inplace=1):
    lines = lines.strip()
    if lines == '': continue
    print lines

But nothing is being printed on stdout.

Assuming some string named foo:

foo.lstrip() # to remove leading white space
foo.rstrip() # to remove trailing whitespace
foo.strip()  # to remove both lead and trailing whitespace

question from:https://stackoverflow.com/questions/65843454/stripping-trailing-whitespace-from-a-text-file

Answer 1

fileinput seems to be for multiple input streams. This is what I would do:

with open("test.txt") as file:
    for line in file:
        line = line.rstrip()
        if line:
            print(line)