code: def interpolate(table, field, fmt, **kwargs):
      
  
      conv = lambda v: fmt % v
      return convert(table, field, conv, **kwargs)
docs: Convenience function to interpolate all values in the given `field` using
      the `fmt` string.
  
      The ``where`` keyword argument can be given with a callable or expression
      which is evaluated on each row and which should return True if the
      conversion should be applied on that row, else False.