在python中从windows-1252转换到utf-8

我想在python中把windows-1252转换为utf-8，我写了这段代码。

def encode(input_file, output_file):
        f = open(input_file, "r")
        data = f.read()
        f.close()
        # Convert from Windows-1252 to UTF-8
        encoded = data.encode('Windows-1252').decode('utf-8')
        with safe_open_w(output_file) as f:
            f.write(encoded)
但我有这个错误。
encoded = data.encode('Windows-1252').decode('utf-8')
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe8 in position 5653: invalid continuation byte
我试图用这个元标签转换一个HTML。
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">