You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: pipx.rb
    path of file: ./repos/homebrew-core/Formula/p
    
    the code of the file until where you have to start completion: class Pipx < Formula
  include Language::Python::Virtualenv

  desc "Execute binaries from Python packages in isolated environments"
  homepage "https://pipx.pypa.io"
  url "https://
    
  def install
    # Avoid Cellar path reference, which is only good for one version.
    inreplace "src/pipx/interpreter.py",
              "DEFAULT_PYTHON = _get_sys_executable()",
              "DEFAULT_PYTHON = '#{python3.opt_libexec/"bin/python"}'"

    virtualenv_install_with_resources

    generate_completions_from_executable(libexec/"bin/register-python-argcomplete", "pipx",
                                         shell_parameter_format: :arg)
  end