title: Convert a large long in python to unsigned char array
body: <p>Have a python server talking to a C/C++ client.  The client expects an unsigned char array to be passed back so I need a way to convert from a long to an unsigned char* of length 64.</p>
  
  <p>Edit:
  My initial thought was to look into the memory for the long and grab 8bit chunks to try and create the needed unsigned chars.  I'm testing that now.</p>