79     def to_file(self, filename):

    80         """write a binary to disk

    81 

    82         the writing is performed in a safe way for files stored on

    83         Windows SMB shares

    84         """

    85         pos = self.tell()

    86         with open(filename, 'wb') as fobj:

    87             self.seek(0)

    88             if sys.platform == 'win32':

    89                 while True:

    90                     # the 16kB chunksize comes from the shutil module

    91                     # in stdlib

    92                     chunk = self.read(16*1024)

    93                     if not chunk:

    94                         break

    95                     fobj.write(chunk)

    96             else:

    97                 fobj.write(self.read())

    98         self.seek(pos)

    99 

   100     @staticmethod

   101     def from_file(filename):

   102         """read a file and returns its contents in a Binary

   103 

   104         the reading is performed in a safe way for files stored on

   105         Windows SMB shares

   106         """

   107         binary = Binary()

   108         with open(filename, 'rb') as fobj:

   109             if sys.platform == 'win32':

   110                 while True:

   111                     # the 16kB chunksize comes from the shutil module

   112                     # in stdlib

   113                     chunk = fobj.read(16*1024)

   114                     if not chunk:

   115                         break

   116                     binary.write(chunk)

   117             else:

   118                 binary.write(fobj.read())

   119         return binary

   120 

   121