substitute_template_expression

(function from pyomo.core.expr.template_expr)

pyomo.core.expr.template_expr.substitute_template_expression(expr, substituter, *args, **kwargs)

Substitute IndexTemplates in an expression tree.

This is a general utility function for walking the expression tree and substituting all occurrences of IndexTemplate and GetItemExpression nodes.

Parameters:

• expr (NumericExpression) – the source template expression

• substituter (Callable) – method taking (expression, *args) and returning the new object

• *args – positional arguments passed directly to the substituter

Returns:

a new expression tree with all substitutions done

Return type:

NumericExpression