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import os
from pathlib import Path
from pip import __version__
from tests.lib import PipTestEnvironment
def test_runner_work_in_environments_with_no_pip(
script: PipTestEnvironment, pip_src: Path
) -> None:
runner = pip_src / "src" / "pip" / "__pip-runner__.py"
# Ensure there's no pip installed in the environment
script.pip("uninstall", "pip", "--yes", use_module=True)
# We don't use script.pip to check here, as when testing a
# zipapp, script.pip will run pip from the zipapp.
script.run("python", "-c", "import pip", expect_error=True)
# The runner script should still invoke a usable pip
result = script.run("python", os.fspath(runner), "--version")
assert __version__ in result.stdout
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