view env/lib/python3.9/site-packages/pip/_internal/operations/build/ @ 0:4f3585e2f14b draft default tip

"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author shellac
date Mon, 22 Mar 2021 18:12:50 +0000
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"""Metadata generation logic for source distributions.

import os

from pip._internal.utils.subprocess import runner_with_spinner_message
from pip._internal.utils.temp_dir import TempDirectory
from pip._internal.utils.typing import MYPY_CHECK_RUNNING

    from pip._vendor.pep517.wrappers import Pep517HookCaller

    from pip._internal.build_env import BuildEnvironment

def generate_metadata(build_env, backend):
    # type: (BuildEnvironment, Pep517HookCaller) -> str
    """Generate metadata using mechanisms described in PEP 517.

    Returns the generated metadata directory.
    metadata_tmpdir = TempDirectory(
        kind="modern-metadata", globally_managed=True

    metadata_dir = metadata_tmpdir.path

    with build_env:
        # Note that Pep517HookCaller implements a fallback for
        # prepare_metadata_for_build_wheel, so we don't have to
        # consider the possibility that this hook doesn't exist.
        runner = runner_with_spinner_message("Preparing wheel metadata")
        with backend.subprocess_runner(runner):
            distinfo_dir = backend.prepare_metadata_for_build_wheel(

    return os.path.join(metadata_dir, distinfo_dir)