visitor

Classes

EvaluateFixedSubexpressionVisitor([...])
ExpressionReplacementVisitor([substitute, ...])
ExpressionValueVisitor()
SimpleExpressionVisitor()
StreamBasedExpressionVisitor(**kwds)	This class implements a generic stream-based expression walker.

Exceptions

FixedExpressionError(*args, **kwds)
NonConstantExpressionError(*args, **kwds)
RevertToNonrecursive

Functions

clone_expression(expr[, substitute])	A function that is used to clone an expression.
evaluate_expression(exp[, exception, constant])	Evaluate the value of the expression.
evaluate_fixed_subexpressions(expr[, ...])
expression_to_string(expr[, verbose, ...])	Return a string representation of an expression.
get_stack_depth()
identify_components(expr, component_types)	A generator that yields a sequence of nodes in an expression tree that belong to a specified set.
identify_mutable_parameters(expr)	A generator that yields a sequence of mutable parameters in an expression tree.
identify_variables(expr[, include_fixed, ...])	A generator that yields a sequence of variables in an expression tree.
polynomial_degree(node)	Return the polynomial degree of the expression.
replace_expressions(expr, substitution_map)
sizeof_expression(expr)	Return the number of nodes in the expression tree.