Test failure on Windows. I'll take a look tomorrow.

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FAIL: test_with_pip (test.test_venv.EnsurePipTest)
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Traceback (most recent call last):
  File "D:\a\cpython\cpython\lib\test\test_venv.py", line 476, in do_test_with_pip
    self.run_with_capture(venv.create, self.env_dir,
  File "D:\a\cpython\cpython\lib\test\test_venv.py", line 76, in run_with_capture
    func(*args, **kwargs)
subprocess.CalledProcessError: Command '['C:\\Users\\runneradmin\\AppData\\Local\\Temp\\tmp3cz40z50\\Scripts\\python.exe', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\a\cpython\cpython\lib\test\test_venv.py", line 536, in test_with_pip
    self.do_test_with_pip(False)
  File "D:\a\cpython\cpython\lib\test\test_venv.py", line 484, in do_test_with_pip
    self.fail(msg.format(exc, details))
AssertionError: Command '['C:\\Users\\runneradmin\\AppData\\Local\\Temp\\tmp3cz40z50\\Scripts\\python.exe', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1.

**Subprocess Output**
Looking in links: c:\Users\RUNNER~1\AppData\Local\Temp\tmped5jdzqn

Processing c:\users\runneradmin\appdata\local\temp\tmped5jdzqn\setuptools-49.2.1-py3-none-any.whl

Processing c:\users\runneradmin\appdata\local\temp\tmped5jdzqn\pip-20.2.1-py2.py3-none-any.whl

Installing collected packages: setuptools, pip

Successfully installed pip-20.2.1 setuptools-49.2.1

Traceback (most recent call last):

  File "D:\a\cpython\cpython\lib\shutil.py", line 613, in _rmtree_unsafe

    os.unlink(fullname)

PermissionError: [WinError 32] The process cannot access the file because it is being used by another process: 'C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\tmped5jdzqn\\pip-20.2.1-py2.py3-none-any.whl'



During handling of the above exception, another exception occurred:



Traceback (most recent call last):

  File "D:\a\cpython\cpython\lib\tempfile.py", line 802, in onerror

    _os.unlink(path)

PermissionError: [WinError 32] The process cannot access the file because it is being used by another process: 'C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\tmped5jdzqn\\pip-20.2.1-py2.py3-none-any.whl'



During handling of the above exception, another exception occurred:



Traceback (most recent call last):

  File "D:\a\cpython\cpython\lib\runpy.py", line 197, in _run_module_as_main

    return _run_code(code, main_globals, None,

  File "D:\a\cpython\cpython\lib\runpy.py", line 87, in _run_code

    exec(code, run_globals)

  File "D:\a\cpython\cpython\lib\ensurepip\__main__.py", line 5, in <module>

    sys.exit(ensurepip._main())

  File "D:\a\cpython\cpython\lib\ensurepip\__init__.py", line 213, in _main

    return _bootstrap(

  File "D:\a\cpython\cpython\lib\ensurepip\__init__.py", line 132, in _bootstrap

    return _run_pip(args + [p[0] for p in _PROJECTS], additional_paths)

  File "D:\a\cpython\cpython\lib\tempfile.py", line 827, in __exit__

    self.cleanup()

  File "D:\a\cpython\cpython\lib\tempfile.py", line 831, in cleanup

    self._rmtree(self.name)

  File "D:\a\cpython\cpython\lib\tempfile.py", line 813, in _rmtree

    _shutil.rmtree(name, onerror=onerror)

  File "D:\a\cpython\cpython\lib\shutil.py", line 737, in rmtree

    return _rmtree_unsafe(path, onerror)

  File "D:\a\cpython\cpython\lib\shutil.py", line 615, in _rmtree_unsafe

    onerror(os.unlink, fullname, sys.exc_info())

  File "D:\a\cpython\cpython\lib\tempfile.py", line 805, in onerror

    cls._rmtree(path)

  File "D:\a\cpython\cpython\lib\tempfile.py", line 813, in _rmtree

    _shutil.rmtree(name, onerror=onerror)

  File "D:\a\cpython\cpython\lib\shutil.py", line 737, in rmtree

    return _rmtree_unsafe(path, onerror)

  File "D:\a\cpython\cpython\lib\shutil.py", line 596, in _rmtree_unsafe

    onerror(os.scandir, path, sys.exc_info())

  File "D:\a\cpython\cpython\lib\shutil.py", line 593, in _rmtree_unsafe

    with os.scandir(path) as scandir_it:

NotADirectoryError: [WinError 267] The directory name is invalid: 'C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\tmped5jdzqn\\pip-20.2.1-py2.py3-none-any.whl'



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