에러 메시지: 'utf-8' codec can't decode byte 0xc4 in position 7239: invalid continuation byte
try:
line_dic = {}
vpn_f = open(vpn_filename, 'r', encoding='UTF8')
...
except Exception as e:
print(e)
를 했더니 에러 메시지가 나왔다.
해결: vpn_f = open(vpn_filename, 'r', encoding='ISO-8859-1')
성공~!