try:
stream.write(data_block)
except (IOError, OSError), err:
- self.trouble('\nERROR: unable to write data: %s' % str(err))
+ self.trouble(u'\nERROR: unable to write data: %s' % str(err))
+ return False
block_size = self.best_block_size(after - before, data_block_len)
# Progress message