old_contents: # Copyright 2017-2020 TensorHub, Inc.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  # http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  from __future__ import absolute_import
  from __future__ import division
  
  import click
  
  from guild import click_util
  
  
  @click.command("list, ls")
  @click.argument("terms", metavar="[TERM]...", nargs=-1)
  @click.option("-a", "--all", help="Show all packages.", is_flag=True)
  @click_util.use_args
  def list_packages(args):
      """List installed packages.
  
      Specify one or more `TERM` arguments to show packages matching any
      of the specified values.
  
      """
      from . import packages_impl
  
      packages_impl.list_packages(args)
  
new_contents: # Copyright 2017-2020 TensorHub, Inc.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  # http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  from __future__ import absolute_import
  from __future__ import division
  
  import click
  
  from guild import click_util
  
  
  @click.command("list, ls")
  @click.argument("terms", metavar="[TERM]...", nargs=-1)
  @click.option("-a", "--all", help="Show all installed Python packages.", is_flag=True)
  @click_util.use_args
  def list_packages(args):
      """List installed packages.
  
      Specify one or more `TERM` arguments to show packages matching any
      of the specified values.
  
      """
      from . import packages_impl
  
      packages_impl.list_packages(args)
  
subject: Clarify meaning of --all option for packages command