def items_overlap_with_suffix(left, lsuffix, right, rsuffix):
 to_rename = left.intersection(right)
 if (len(to_rename) == 0):
  return (left, right)
 else:
  if ((not lsuffix) and (not rsuffix)):
   raise ValueError(('columns overlap but no suffix specified: %s' % to_rename))
  def lrenamer(x):
   if (x in to_rename):
    return ('%s%s' % (x, lsuffix))
   return x
  def rrenamer(x):
   if (x in to_rename):
    return ('%s%s' % (x, rsuffix))
   return x
  return (_transform_index(left, lrenamer), _transform_index(right, rrenamer))

def items_overlap_with_suffix ( left , lsuffix , right , rsuffix ) : to_rename = left . intersection ( right ) if ( len ( to_rename ) == 0 ) : return ( left , right ) else : if ( ( not lsuffix ) and ( not rsuffix ) ) : raise ValueError ( ( 'columns overlap but no suffix specified: %s' % to_rename ) ) def lrenamer ( x ) : if ( x in to_rename ) : return ( '%s%s' % ( x , lsuffix ) ) return x def rrenamer ( x ) : if ( x in to_rename ) : return ( '%s%s' % ( x , rsuffix ) ) return x return ( _transform_index ( left , lrenamer ) , _transform_index ( right , rrenamer ) )
if two indices overlap .