UnicodeDecodeError 'cp949' codec can't decode bytes in position

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')