from struct import unpack

class PLXHeader:
    """Using a Python class as a C struct substitute"""
    def __init__(self):
        self.MagicNumber = ""#Unique ID our recording rigs insert. It's 1480936528
        self.Version = ""
        self.Comment = ""
        self.ADFrequency = ""
        self.NumDSPChannels = ""
        self.NumEventChannels = ""
        self.NumSlowChannels = ""
        self.NumPointsWave = ""
        self.NumPointsPreThr = ""

if __name__ == '__main__':

    p = open('c:\\PlexonSDK\\file.plx', 'r')
    s = PLXHeader()

    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()