old_contents: # -*- coding: utf-8 -*-
  
  # This code is part of Qiskit.
  #
  # (C) Copyright IBM 2017, 2019.
  #
  # This code is licensed under the Apache License, Version 2.0. You may
  # obtain a copy of this license in the LICENSE.txt file in the root directory
  # of this source tree or at http://www.apache.org/licenses/LICENSE-2.0.
  #
  # Any modifications or derivative works of this code must retain this
  # copyright notice, and modified files need to carry a notice indicating
  # that they have been altered from the originals.
  
  """Module for Pulses."""
  
  from .channels import (PulseChannelSpec, DriveChannel,
                         MeasureChannel, AcquireChannel,
                         ControlChannel, RegisterSlot, MemorySlot)
  from .cmd_def import CmdDef
  from .commands import (Instruction, Acquire, FrameChange, PersistentValue,
                         SamplePulse, Snapshot, Kernel, Discriminator, Delay,
                         functional_pulse)
  from .configuration import LoConfig, LoRange
  from .exceptions import PulseError
  from .interfaces import ScheduleComponent
  # from .parser import parse_string_expr
  from .schedule import Schedule
  
new_contents: # -*- coding: utf-8 -*-
  
  # This code is part of Qiskit.
  #
  # (C) Copyright IBM 2017, 2019.
  #
  # This code is licensed under the Apache License, Version 2.0. You may
  # obtain a copy of this license in the LICENSE.txt file in the root directory
  # of this source tree or at http://www.apache.org/licenses/LICENSE-2.0.
  #
  # Any modifications or derivative works of this code must retain this
  # copyright notice, and modified files need to carry a notice indicating
  # that they have been altered from the originals.
  
  """Module for Pulses."""
  
  from .channels import (PulseChannelSpec, DriveChannel,
                         MeasureChannel, AcquireChannel,
                         ControlChannel, RegisterSlot, MemorySlot)
  from .cmd_def import CmdDef
  from .commands import (Instruction, Acquire, FrameChange, PersistentValue,
                         SamplePulse, Snapshot, Kernel, Discriminator, Delay,
                         functional_pulse)
  from .configuration import LoConfig, LoRange
  from .exceptions import PulseError
  from .interfaces import ScheduleComponent
  from .schedule import Schedule
  
subject: Remove line in init which had been commented out (#3150)