Method replace

python/pathway/internals/expressions/string.py:195–272

Returns the a string where the occurrences of the old_value substrings are replaced by the new_value substring. Args: count: Maximum number of occurrences to replace. When set to -1, replaces all occurrences. Defaults to -1. Returns:

(
        self,
        old_value: expr.ColumnExpression | str,
        new_value: expr.ColumnExpression | str,
        count: expr.ColumnExpression | int = -1,
        /,
    )

        )

    def replace(
        self,
        old_value: expr.ColumnExpression | str,
        new_value: expr.ColumnExpression | str,
        count: expr.ColumnExpression | int = -1,
        /,
    ) -> expr.ColumnExpression:
        """Returns the a string where the occurrences of the old_value substrings are
            replaced by the new_value substring.

        Args:
            count: Maximum number of occurrences to replace. When set to -1, replaces
                all occurrences. Defaults to -1.

        Returns:
            The new string where old_value is replaced by new_value

        Example:

        >>> import pathway as pw
        >>> table = pw.debug.table_from_markdown(
        ...     '''
        ...      | name
        ...    1 | Alice
        ...    2 | Bob
        ...    3 | CAROLE
        ...    4 | david
        ...    5 | Edward
        ... '''
        ... )
        >>> table += table.select(name_replace=table.name.str.replace("d","Z"))
        >>> pw.debug.compute_and_print(table, include_id=False)
        name   | name_replace
        Alice  | Alice
        Bob    | Bob
        CAROLE | CAROLE
        Edward | EZwarZ
        david  | ZaviZ
        >>> table = pw.debug.table_from_markdown(
        ...     '''
        ...      | value      | old | new | count
        ...    1 | Scaciscics | c   | t   | 3
        ...    2 | yelliwwiid | i   | o   | 2
        ... '''
        ... )
        >>> table = table.select(
        ...    pw.this.value,
        ...    value_replace=pw.this.value.str.replace(
        ...       pw.this.old, pw.this.new, pw.this.count
        ...    )
        ... )
        >>> pw.debug.compute_and_print(table, include_id=False)
        value      | value_replace
        Scaciscics | Statistics
        yelliwwiid | yellowwoid
        """

        return expr.MethodCallExpression(