from struct import unpack

class PHeader:
    """Using a Python class as a C struct substitute"""
    def __init__(self):
        self.MagicNumber = ""
        self.Version = ""
        self.Comment = ""

if __name__ == '__main__':

    p = open('c:\\SDK\\file.p', 'r')
    s = PHeader()

    s.MagicNumber = unpack('i', (p.read(4)))
    s.Version = unpack('i', (p.read(4)))
    s.Comment = unpack('128s', (p.read(128)))

    print('Magic Number: %s') % hex(s.MagicNumber[0])
    print('Version: %d') % s.Version[0]
    print('Comment: %s') % s.Comment[0]

    p.close()