Function extract_pip_files

PC/layout/support/pip.py:44–93

(ns)

def extract_pip_files(ns):
    dest = get_pip_dir(ns)
    try:
        dest.mkdir(parents=True, exist_ok=False)
    except IOError:
        return

    src = ns.source / "Lib" / "ensurepip" / "_bundled"

    ns.temp.mkdir(parents=True, exist_ok=True)
    wheels = [shutil.copy(whl, ns.temp) for whl in src.glob("*.whl")]
    search_path = os.pathsep.join(wheels)
    if os.environ.get("PYTHONPATH"):
        search_path += ";" + os.environ["PYTHONPATH"]

    env = os.environ.copy()
    env["PYTHONPATH"] = search_path

    output = subprocess.check_output(
        [
            sys.executable,
            "-m",
            "pip",
            "--no-color",
            "install",
            "pip",
            "--upgrade",
            "--target",
            str(dest),
            "--no-index",
            "--no-compile",
            "--no-cache-dir",
            "-f",
            str(src),
            "--only-binary",
            ":all:",
        ],
        env=env,
    )

    try:
        shutil.rmtree(dest / "bin")
    except OSError:
        pass

    for file in wheels:
        try:
            os.remove(file)
        except OSError:
            pass