How to get rid of empty lines in file.write()?

Question

Python

Essence of the question. There is a tuple of strings, each line of which starts with characters \r\n.
When outputting a tuple to the console:

for x in tuple:
    print(x.decode('cp1251'))

line breaks are displayed correctly:

1. one;
2. two;
3. three;

When writing lines to a file:

file = open('file.txt', 'a')
for x in tuple:
    file.write(x.decode('cp1251'))

after each line, another carriage return appears:

1. one;

2. two;

3. three;

Thanks in advance.

Answer 1

The problem was the carriage return character "\r".
Decided like this:

for x in tuple:
    file.write(x.decode('cp1251').replace('\r\n', '\n'))

Answer 2

file.write(x.decode('cp1251').strip()+'\n')