Method without

python/pathway/internals/table.py:2173–2209

Selects all columns without named column references. Args: columns: columns to be dropped provided by `table.column_name` notation. Returns: Table: `self` without specified columns. Example: >>> import pathway as pw >>> t1 = pw.debu

(self, *columns: str | expr.ColumnReference)

    @contextualized_operator
    @check_arg_types
    def without(self, *columns: str | expr.ColumnReference) -> Table:
        """Selects all columns without named column references.

        Args:
            columns: columns to be dropped provided by `table.column_name` notation.

        Returns:
            Table: `self` without specified columns.

        Example:

        >>> import pathway as pw
        >>> t1 = pw.debug.table_from_markdown('''
        ... age  | owner  | pet
        ...  10  | Alice  | 1
        ...   9  | Bob    | 1
        ...   8  | Alice  | 2
        ... ''')
        >>> t2 = t1.without(t1.age, pw.this.pet)
        >>> pw.debug.compute_and_print(t2, include_id=False)
        owner
        Alice
        Alice
        Bob
        """
        new_columns = self._columns.copy()
        for col in columns:
            if isinstance(col, expr.ColumnReference):
                new_columns.pop(col.name)
            else:
                assert isinstance(col, str)
                new_columns.pop(col)
        columns_wrapped = {
            name: self._wrap_column_in_context(self._rowwise_context, column, name)
            for name, column in new_columns.items()
        }
        return self._with_same_universe(*columns_wrapped.items())

    @trace_user_frame
    @contextualized_operator