Effect final removals from Qiskit 1.0

qiskit/circuit/classicalregister.py

@@ -19,7 +19,6 @@
 
 from qiskit.circuit.exceptions import CircuitError
 
-from qiskit.utils.deprecation import deprecate_func
 from .register import Register
 from .bit import Bit
 
@@ -56,16 +55,3 @@ class ClassicalRegister(Register):
     # Prefix to use for auto naming.
     prefix = "c"
     bit_type = Clbit
-
-    @deprecate_func(
-        additional_msg=(
-            "Correct exporting to OpenQASM 2 is the responsibility of a larger exporter; it cannot "
-            "safely be done on an object-by-object basis without context. No replacement will be "
-            "provided, because the premise is wrong."
-        ),
-        since="0.23.0",
-        package_name="qiskit-terra",
-    )
-    def qasm(self):
-        """Return OPENQASM string for this register."""
-        return "creg %s[%d];" % (self.name, self.size)

qiskit/circuit/quantumcircuit.py

@@ -17,7 +17,6 @@
 from __future__ import annotations
 import copy
 import multiprocessing as mp
-import warnings
 import typing
 from collections import OrderedDict, defaultdict, namedtuple
 from typing import (
@@ -468,17 +467,9 @@ def metadata(self) -> dict:
         return self._metadata
 
     @metadata.setter
-    def metadata(self, metadata: dict | None):
+    def metadata(self, metadata: dict):
         """Update the circuit metadata"""
-        if metadata is None:
-            metadata = {}
-            warnings.warn(
-                "Setting metadata to None was deprecated in Terra 0.24.0 and this ability will be "
-                "removed in a future release. Instead, set metadata to an empty dictionary.",
-                DeprecationWarning,
-                stacklevel=2,
-            )
-        elif not isinstance(metadata, dict):
+        if not isinstance(metadata, dict):
             raise TypeError("Only a dictionary is accepted for circuit metadata")
         self._metadata = metadata
 

qiskit/circuit/quantumregister.py

@@ -19,8 +19,6 @@
 
 from qiskit.circuit.exceptions import CircuitError
 
-# Over-specific import to avoid cyclic imports.
-from qiskit.utils.deprecation import deprecate_func
 from .register import Register
 from .bit import Bit
 
@@ -58,19 +56,6 @@ class QuantumRegister(Register):
     prefix = "q"
     bit_type = Qubit
 
-    @deprecate_func(
-        additional_msg=(
-            "Correct exporting to OpenQASM 2 is the responsibility of a larger exporter; it cannot "
-            "safely be done on an object-by-object basis without context. No replacement will be "
-            "provided, because the premise is wrong."
-        ),
-        since="0.23.0",
-        package_name="qiskit-terra",
-    )
-    def qasm(self):
-        """Return OPENQASM string for this register."""
-        return "qreg %s[%d];" % (self.name, self.size)
-
 
 class AncillaQubit(Qubit):
     """A qubit used as ancillary qubit."""

qiskit/circuit/register.py

@@ -17,28 +17,12 @@
 """
 
 from __future__ import annotations
-import re
 import itertools
-import warnings
 import numpy as np
 
 from qiskit.circuit.exceptions import CircuitError
 
 
-class _NameFormat:
-    REGEX = re.compile("[a-z][a-zA-Z0-9_]*")
-
-    def __get__(self, obj, objtype=None):
-        warnings.warn(
-            "Register.name_format is deprecated as of Qiskit Terra 0.23, and will be removed in a"
-            " future release. There is no longer a restriction on the names of registers, so the"
-            " attribute has no meaning any more.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return self.REGEX
-
-
 class Register:
     """Implement a generic register.
 
@@ -50,11 +34,6 @@ class Register:
 
     __slots__ = ["_name", "_size", "_bits", "_bit_indices", "_hash", "_repr"]
 
-    # In historical version of Terra, registers' name had to conform to the OpenQASM 2 specification
-    # (see appendix A of https://arxiv.org/pdf/1707.03429v2.pdf), and this regex enforced it.  That
-    # restriction has been relaxed, so this is no longer necessary.
-    name_format = _NameFormat()
-
     # Counter for the number of instances in this class.
     instances_counter = itertools.count()
     # Prefix to use for auto naming.

qiskit/quantum_info/operators/measures.py

@@ -16,7 +16,6 @@
 
 from __future__ import annotations
 import logging
-import warnings
 import numpy as np
 
 from qiskit.exceptions import QiskitError, MissingOptionalLibraryError
@@ -388,16 +387,10 @@ def _input_formatter(obj, fallback_class, func_name, arg_name):
         return Operator(obj)
     if hasattr(obj, "to_operator"):
         return obj.to_operator()
-
-    warnings.warn(
-        "Passing in a list or Numpy array to `{}` `{}` argument is "
-        "deprecated as of 0.17.0 since the matrix representation cannot be inferred "
-        "unambiguously. Use a Gate or BaseOperator subclass (eg. Operator, "
-        "SuperOp, Choi) object instead.".format(func_name, arg_name),
-        DeprecationWarning,
+    raise TypeError(
+        f"invalid type supplied to {arg_name} of {func_name}."
+        f" A {fallback_class.__name__} is best."
     )
-    warnings.warn(f"Treating array input as a {fallback_class.__name__} object")
-    return fallback_class(obj)
 
 
 def _cp_condition(channel):

qiskit/synthesis/two_qubit/two_qubit_decompose.py

@@ -44,7 +44,6 @@
     OneQubitEulerDecomposer,
     DEFAULT_ATOL,
 )
-from qiskit.utils.deprecation import deprecate_arg
 from qiskit._accelerate import two_qubit_decompose
 
 logger = logging.getLogger(__name__)
@@ -1086,7 +1085,6 @@ def decomp3_supercontrolled(self, target):
 
         return U3r, U3l, U2r, U2l, U1r, U1l, U0r, U0l
 
-    @deprecate_arg("target", new_alias="unitary", since="0.23.0", package_name="qiskit-terra")
     def __call__(
         self,
         unitary: Operator | np.ndarray,

qiskit/transpiler/passes/__init__.py

@@ -100,6 +100,8 @@
    RZXCalibrationBuilderNoEcho
    RXCalibrationBuilder
 
+.. autofunction:: rzx_templates
+
 Scheduling
 =============
 
@@ -248,7 +250,6 @@
 # synthesis
 from .synthesis import UnitarySynthesis
 from .synthesis import unitary_synthesis_plugin_names
-from .synthesis import LinearFunctionsSynthesis
 from .synthesis import LinearFunctionsToPermutations
 from .synthesis import HighLevelSynthesis
 from .synthesis import HLSConfig
@@ -261,6 +262,7 @@
 from .calibration import RZXCalibrationBuilder
 from .calibration import RZXCalibrationBuilderNoEcho
 from .calibration import RXCalibrationBuilder
+from .calibration.rzx_templates import rzx_templates
 
 # circuit scheduling
 from .scheduling import TimeUnitConversion

qiskit/transpiler/passes/synthesis/__init__.py

@@ -14,7 +14,7 @@
 
 from .unitary_synthesis import UnitarySynthesis
 from .plugin import high_level_synthesis_plugin_names, unitary_synthesis_plugin_names
-from .linear_functions_synthesis import LinearFunctionsSynthesis, LinearFunctionsToPermutations
+from .linear_functions_synthesis import LinearFunctionsToPermutations
 from .high_level_synthesis import HighLevelSynthesis, HLSConfig
 from .solovay_kitaev_synthesis import SolovayKitaev, SolovayKitaevSynthesis
 from .aqc_plugin import AQCSynthesisPlugin

qiskit/transpiler/passes/synthesis/linear_functions_synthesis.py

@@ -17,28 +17,6 @@
 from qiskit.dagcircuit.dagcircuit import DAGCircuit
 from qiskit.circuit.library import PermutationGate
 from qiskit.circuit.exceptions import CircuitError
-from qiskit.transpiler.passes.synthesis.high_level_synthesis import HighLevelSynthesis, HLSConfig
-from qiskit.utils.deprecation import deprecate_func
-
-
-class LinearFunctionsSynthesis(HighLevelSynthesis):
-    """DEPRECATED: Synthesize linear functions.
-
-    Under the hood, this runs the default high-level synthesis plugin for linear functions.
-    """
-
-    @deprecate_func(
-        additional_msg="Instead, use :class:`~.HighLevelSynthesis`.",
-        since="0.23.0",
-        package_name="qiskit-terra",
-    )
-    def __init__(self):
-        # This config synthesizes only linear functions using the "default" method.
-        default_linear_config = HLSConfig(
-            linear_function=[("default", {})],
-            use_default_on_unspecified=False,
-        )
-        super().__init__(hls_config=default_linear_config)
 
 
 class LinearFunctionsToPermutations(TransformationPass):

qiskit/visualization/pulse_v2/stylesheet.py

@@ -31,16 +31,13 @@
 the appearance of the output image.
 """
 
-import warnings
 from typing import Dict, Any, Mapping
 from qiskit.visualization.pulse_v2 import generators, layouts
 
 
 class QiskitPulseStyle(dict):
     """Stylesheet for pulse drawer."""
 
-    _deprecated_keys = {}
-
     def __init__(self):
         super().__init__()
         # to inform which stylesheet is applied. some plotter may not support specific style.
@@ -50,14 +47,7 @@ def __init__(self):
     def update(self, __m: Mapping[str, Any], **kwargs) -> None:
         super().update(__m, **kwargs)
         for key, value in __m.items():
-            if key in self._deprecated_keys:
-                warnings.warn(
-                    f"{key} is deprecated. Use {self._deprecated_keys[key]} instead.",
-                    DeprecationWarning,
-                )
-                self.__setitem__(self._deprecated_keys[key], value)
-            else:
-                self.__setitem__(key, value)
+            self.__setitem__(key, value)
         self.stylesheet = __m.__class__.__name__
 
     @property

qiskit/visualization/timeline/stylesheet.py

@@ -37,7 +37,6 @@
 only one layout function can be chosen for each stylesheet.
 """
 
-import warnings
 from typing import Dict, Any, Mapping
 
 from qiskit.visualization.timeline import generators, layouts
@@ -46,8 +45,6 @@
 class QiskitTimelineStyle(dict):
     """Stylesheet for pulse drawer."""
 
-    _deprecated_keys = {"link_interval_dt": "link_interval_percent"}
-
     def __init__(self):
         super().__init__()
         # to inform which stylesheet is applied. some plotter may not support specific style.
@@ -57,14 +54,7 @@ def __init__(self):
     def update(self, __m: Mapping[str, Any], **kwargs) -> None:
         super().update(__m, **kwargs)
         for key, value in __m.items():
-            if key in self._deprecated_keys:
-                warnings.warn(
-                    f"{key} is deprecated. Use {self._deprecated_keys[key]} instead.",
-                    DeprecationWarning,
-                )
-                self.__setitem__(self._deprecated_keys[key], value)
-            else:
-                self.__setitem__(key, value)
+            self.__setitem__(key, value)
         self.stylesheet = __m.__class__.__name__
 
     @property