golden hour

/usr/lib/python3.6/site-packages/pip/utils

File/Folder	Size	Actions
__init__.py	26.87 KB
__pycache__	-
appdirs.py	8.6 KB
build.py	1.28 KB
deprecation.py	2.18 KB
encoding.py	971 B
filesystem.py	899 B
glibc.py	2.87 KB
hashes.py	2.8 KB
logging.py	3.25 KB
outdated.py	5.85 KB
packaging.py	2.03 KB
setuptools_build.py	278 B
ui.py	11.33 KB

Edit: build.py

from __future__ import absolute_import

import os.path
import tempfile

from pip.utils import rmtree

class BuildDirectory(object):

def __init__(self, name=None, delete=None):
        # If we were not given an explicit directory, and we were not given an
        # explicit delete option, then we'll default to deleting.
        if name is None and delete is None:
            delete = True

if name is None:
            # We realpath here because some systems have their default tmpdir
            # symlinked to another directory.  This tends to confuse build
            # scripts, so we canonicalize the path by traversing potential
            # symlinks here.
            name = os.path.realpath(tempfile.mkdtemp(prefix="pip-build-"))
            # If we were not given an explicit directory, and we were not given
            # an explicit delete option, then we'll default to deleting.
            if delete is None:
                delete = True

self.name = name
        self.delete = delete

def __repr__(self):
        return "<{} {!r}>".format(self.__class__.__name__, self.name)

def __enter__(self):
        return self.name

def __exit__(self, exc, value, tb):
        self.cleanup()

def cleanup(self):
        if self.delete:
            rmtree(self.name)