에러
python test.py
Traceback (most recent call last):
File "test.py", line 7, in <module>
content = f.readlines()
UnicodeDecodeError: 'cp949' codec can't decode byte 0xec in position 48: illegal multibyte sequence
수정 전
open(file, 'w')
수정 후
open(file, 'w', encoding='UTF8')