Transpiler (qiskit.transpiler)

Pass Management

PassManager([passes, max_iteration, callback])	Manager for a set of Passes and their scheduling during transpilation.
PassManagerConfig([initial_layout, …])	Pass Manager Configuration.
PropertySet	A default dictionary-like object
FlowController(passes, options, …)	Base class for multiple types of working list.

Layout and Topology

Layout([input_dict])	Two-ways dict to represent a Layout.
CouplingMap([couplinglist, description])	Directed graph specifying fixed coupling.

Fenced Objects

FencedDAGCircuit(dag_circuit_instance)	A dag circuit that cannot be modified (via remove_op_node)
FencedPropertySet(property_set_instance)	A property set that cannot be written (via __setitem__)

Exceptions

TranspilerError(*message)	Exceptions raised during transpilation.
TranspilerAccessError(*message)	DEPRECATED: Exception of access error in the transpiler passes.