def __mul__(self, other) -> 'PauliString':
if not (isinstance(other, (PauliString, numbers.Number)) or
gate_operation.op_gate_isinstance(other,
common_gates.IdentityGate)):
return NotImplemented
return PauliString(other,
qubit_pauli_map=self._qubit_pauli_map,
coefficient=self.coefficient)
def __rmul__(self, other) -> 'PauliString':
if isinstance(other, numbers.Number):
return PauliString(qubit_pauli_map=self._qubit_pauli_map,
coefficient=self._coefficient *
complex(cast(SupportsComplex, other)))
if gate_operation.op_gate_isinstance(other, common_gates.IdentityGate):
return self
# Note: PauliString case handled by __mul__.
return NotImplemented
def inline_times_pauli_string_like(self,
contents: 'cirq.PAULI_STRING_LIKE'):
if isinstance(contents, PauliString):
# Note: cirq.X/Y/Z(qubit) are PauliString instances.
self.inline_times_pauli_string(contents)
elif gate_operation.op_gate_isinstance(contents,
common_gates.IdentityGate):
pass # No effect.
elif isinstance(contents, Mapping):
self._inline_times_mapping(contents)
elif isinstance(contents, Iterable) and not isinstance(contents, str):
for item in contents:
self.inline_times_pauli_string_like(
cast(PAULI_STRING_LIKE, item))
elif isinstance(contents, numbers.Number):
self.coef *= complex(cast(SupportsComplex, contents))
else:
raise TypeError(f"Not a `cirq.PAULI_STRING_LIKE`: "
f"{type(contents)}, {repr(contents)}")