id card

22 files changed, 0 insertions, 1568 deletions

diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__init__.py b/env/lib/python3.10/site-packages/pip/_vendor/pep517/__init__.py
deleted file mode 100644
index 2b6b885..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-"""Wrappers to build Python packages using PEP 517 hooks
-"""
-
-__version__ = '0.12.0'
-
-from .wrappers import *  # noqa: F401, F403
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/__init__.cpython-310.pyc b/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/__init__.cpython-310.pyc
deleted file mode 100644
index 1fb97b2..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/__init__.cpython-310.pyc
+++ /dev/null
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/build.cpython-310.pyc b/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/build.cpython-310.pyc
deleted file mode 100644
index 6535454..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/build.cpython-310.pyc
+++ /dev/null
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/check.cpython-310.pyc b/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/check.cpython-310.pyc
deleted file mode 100644
index ff3df44..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/check.cpython-310.pyc
+++ /dev/null
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/colorlog.cpython-310.pyc b/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/colorlog.cpython-310.pyc
deleted file mode 100644
index 5ec6f70..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/colorlog.cpython-310.pyc
+++ /dev/null
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/compat.cpython-310.pyc b/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/compat.cpython-310.pyc
deleted file mode 100644
index b4f44ce..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/compat.cpython-310.pyc
+++ /dev/null
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/dirtools.cpython-310.pyc b/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/dirtools.cpython-310.pyc
deleted file mode 100644
index bafe7fb..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/dirtools.cpython-310.pyc
+++ /dev/null
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/envbuild.cpython-310.pyc b/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/envbuild.cpython-310.pyc
deleted file mode 100644
index a43b04d..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/envbuild.cpython-310.pyc
+++ /dev/null
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/meta.cpython-310.pyc b/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/meta.cpython-310.pyc
deleted file mode 100644
index b00b6cb..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/meta.cpython-310.pyc
+++ /dev/null
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/wrappers.cpython-310.pyc b/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/wrappers.cpython-310.pyc
deleted file mode 100644
index 39a2709..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/__pycache__/wrappers.cpython-310.pyc
+++ /dev/null
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/build.py b/env/lib/python3.10/site-packages/pip/_vendor/pep517/build.py
deleted file mode 100644
index bc463b2..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/build.py
+++ /dev/null
@@ -1,127 +0,0 @@
-"""Build a project using PEP 517 hooks.
-"""
-import argparse
-import io
-import logging
-import os
-import shutil
-
-from .envbuild import BuildEnvironment
-from .wrappers import Pep517HookCaller
-from .dirtools import tempdir, mkdir_p
-from .compat import FileNotFoundError, toml_load
-
-log = logging.getLogger(__name__)
-
-
-def validate_system(system):
-    """
-    Ensure build system has the requisite fields.
-    """
-    required = {'requires', 'build-backend'}
-    if not (required <= set(system)):
-        message = "Missing required fields: {missing}".format(
-            missing=required-set(system),
-        )
-        raise ValueError(message)
-
-
-def load_system(source_dir):
-    """
-    Load the build system from a source dir (pyproject.toml).
-    """
-    pyproject = os.path.join(source_dir, 'pyproject.toml')
-    with io.open(pyproject, 'rb') as f:
-        pyproject_data = toml_load(f)
-    return pyproject_data['build-system']
-
-
-def compat_system(source_dir):
-    """
-    Given a source dir, attempt to get a build system backend
-    and requirements from pyproject.toml. Fallback to
-    setuptools but only if the file was not found or a build
-    system was not indicated.
-    """
-    try:
-        system = load_system(source_dir)
-    except (FileNotFoundError, KeyError):
-        system = {}
-    system.setdefault(
-        'build-backend',
-        'setuptools.build_meta:__legacy__',
-    )
-    system.setdefault('requires', ['setuptools', 'wheel'])
-    return system
-
-
-def _do_build(hooks, env, dist, dest):
-    get_requires_name = 'get_requires_for_build_{dist}'.format(**locals())
-    get_requires = getattr(hooks, get_requires_name)
-    reqs = get_requires({})
-    log.info('Got build requires: %s', reqs)
-
-    env.pip_install(reqs)
-    log.info('Installed dynamic build dependencies')
-
-    with tempdir() as td:
-        log.info('Trying to build %s in %s', dist, td)
-        build_name = 'build_{dist}'.format(**locals())
-        build = getattr(hooks, build_name)
-        filename = build(td, {})
-        source = os.path.join(td, filename)
-        shutil.move(source, os.path.join(dest, os.path.basename(filename)))
-
-
-def build(source_dir, dist, dest=None, system=None):
-    system = system or load_system(source_dir)
-    dest = os.path.join(source_dir, dest or 'dist')
-    mkdir_p(dest)
-
-    validate_system(system)
-    hooks = Pep517HookCaller(
-        source_dir, system['build-backend'], system.get('backend-path')
-    )
-
-    with BuildEnvironment() as env:
-        env.pip_install(system['requires'])
-        _do_build(hooks, env, dist, dest)
-
-
-parser = argparse.ArgumentParser()
-parser.add_argument(
-    'source_dir',
-    help="A directory containing pyproject.toml",
-)
-parser.add_argument(
-    '--binary', '-b',
-    action='store_true',
-    default=False,
-)
-parser.add_argument(
-    '--source', '-s',
-    action='store_true',
-    default=False,
-)
-parser.add_argument(
-    '--out-dir', '-o',
-    help="Destination in which to save the builds relative to source dir",
-)
-
-
-def main(args):
-    log.warning('pep517.build is deprecated. '
-                'Consider switching to https://pypi.org/project/build/')
-
-    # determine which dists to build
-    dists = list(filter(None, (
-        'sdist' if args.source or not args.binary else None,
-        'wheel' if args.binary or not args.source else None,
-    )))
-
-    for dist in dists:
-        build(args.source_dir, dist, args.out_dir)
-
-
-if __name__ == '__main__':
-    main(parser.parse_args())
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/check.py b/env/lib/python3.10/site-packages/pip/_vendor/pep517/check.py
deleted file mode 100644
index bf3c722..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/check.py
+++ /dev/null
@@ -1,207 +0,0 @@
-"""Check a project and backend by attempting to build using PEP 517 hooks.
-"""
-import argparse
-import io
-import logging
-import os
-from os.path import isfile, join as pjoin
-import shutil
-from subprocess import CalledProcessError
-import sys
-import tarfile
-from tempfile import mkdtemp
-import zipfile
-
-from .colorlog import enable_colourful_output
-from .compat import TOMLDecodeError, toml_load
-from .envbuild import BuildEnvironment
-from .wrappers import Pep517HookCaller
-
-log = logging.getLogger(__name__)
-
-
-def check_build_sdist(hooks, build_sys_requires):
-    with BuildEnvironment() as env:
-        try:
-            env.pip_install(build_sys_requires)
-            log.info('Installed static build dependencies')
-        except CalledProcessError:
-            log.error('Failed to install static build dependencies')
-            return False
-
-        try:
-            reqs = hooks.get_requires_for_build_sdist({})
-            log.info('Got build requires: %s', reqs)
-        except Exception:
-            log.error('Failure in get_requires_for_build_sdist', exc_info=True)
-            return False
-
-        try:
-            env.pip_install(reqs)
-            log.info('Installed dynamic build dependencies')
-        except CalledProcessError:
-            log.error('Failed to install dynamic build dependencies')
-            return False
-
-        td = mkdtemp()
-        log.info('Trying to build sdist in %s', td)
-        try:
-            try:
-                filename = hooks.build_sdist(td, {})
-                log.info('build_sdist returned %r', filename)
-            except Exception:
-                log.info('Failure in build_sdist', exc_info=True)
-                return False
-
-            if not filename.endswith('.tar.gz'):
-                log.error(
-                    "Filename %s doesn't have .tar.gz extension", filename)
-                return False
-
-            path = pjoin(td, filename)
-            if isfile(path):
-                log.info("Output file %s exists", path)
-            else:
-                log.error("Output file %s does not exist", path)
-                return False
-
-            if tarfile.is_tarfile(path):
-                log.info("Output file is a tar file")
-            else:
-                log.error("Output file is not a tar file")
-                return False
-
-        finally:
-            shutil.rmtree(td)
-
-        return True
-
-
-def check_build_wheel(hooks, build_sys_requires):
-    with BuildEnvironment() as env:
-        try:
-            env.pip_install(build_sys_requires)
-            log.info('Installed static build dependencies')
-        except CalledProcessError:
-            log.error('Failed to install static build dependencies')
-            return False
-
-        try:
-            reqs = hooks.get_requires_for_build_wheel({})
-            log.info('Got build requires: %s', reqs)
-        except Exception:
-            log.error('Failure in get_requires_for_build_sdist', exc_info=True)
-            return False
-
-        try:
-            env.pip_install(reqs)
-            log.info('Installed dynamic build dependencies')
-        except CalledProcessError:
-            log.error('Failed to install dynamic build dependencies')
-            return False
-
-        td = mkdtemp()
-        log.info('Trying to build wheel in %s', td)
-        try:
-            try:
-                filename = hooks.build_wheel(td, {})
-                log.info('build_wheel returned %r', filename)
-            except Exception:
-                log.info('Failure in build_wheel', exc_info=True)
-                return False
-
-            if not filename.endswith('.whl'):
-                log.error("Filename %s doesn't have .whl extension", filename)
-                return False
-
-            path = pjoin(td, filename)
-            if isfile(path):
-                log.info("Output file %s exists", path)
-            else:
-                log.error("Output file %s does not exist", path)
-                return False
-
-            if zipfile.is_zipfile(path):
-                log.info("Output file is a zip file")
-            else:
-                log.error("Output file is not a zip file")
-                return False
-
-        finally:
-            shutil.rmtree(td)
-
-        return True
-
-
-def check(source_dir):
-    pyproject = pjoin(source_dir, 'pyproject.toml')
-    if isfile(pyproject):
-        log.info('Found pyproject.toml')
-    else:
-        log.error('Missing pyproject.toml')
-        return False
-
-    try:
-        with io.open(pyproject, 'rb') as f:
-            pyproject_data = toml_load(f)
-        # Ensure the mandatory data can be loaded
-        buildsys = pyproject_data['build-system']
-        requires = buildsys['requires']
-        backend = buildsys['build-backend']
-        backend_path = buildsys.get('backend-path')
-        log.info('Loaded pyproject.toml')
-    except (TOMLDecodeError, KeyError):
-        log.error("Invalid pyproject.toml", exc_info=True)
-        return False
-
-    hooks = Pep517HookCaller(source_dir, backend, backend_path)
-
-    sdist_ok = check_build_sdist(hooks, requires)
-    wheel_ok = check_build_wheel(hooks, requires)
-
-    if not sdist_ok:
-        log.warning('Sdist checks failed; scroll up to see')
-    if not wheel_ok:
-        log.warning('Wheel checks failed')
-
-    return sdist_ok
-
-
-def main(argv=None):
-    log.warning('pep517.check is deprecated. '
-                'Consider switching to https://pypi.org/project/build/')
-
-    ap = argparse.ArgumentParser()
-    ap.add_argument(
-        'source_dir',
-        help="A directory containing pyproject.toml")
-    args = ap.parse_args(argv)
-
-    enable_colourful_output()
-
-    ok = check(args.source_dir)
-
-    if ok:
-        print(ansi('Checks passed', 'green'))
-    else:
-        print(ansi('Checks failed', 'red'))
-        sys.exit(1)
-
-
-ansi_codes = {
-    'reset': '\x1b[0m',
-    'bold': '\x1b[1m',
-    'red': '\x1b[31m',
-    'green': '\x1b[32m',
-}
-
-
-def ansi(s, attr):
-    if os.name != 'nt' and sys.stdout.isatty():
-        return ansi_codes[attr] + str(s) + ansi_codes['reset']
-    else:
-        return str(s)
-
-
-if __name__ == '__main__':
-    main()
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/colorlog.py b/env/lib/python3.10/site-packages/pip/_vendor/pep517/colorlog.py
deleted file mode 100644
index 69c8a59..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/colorlog.py
+++ /dev/null
@@ -1,115 +0,0 @@
-"""Nicer log formatting with colours.
-
-Code copied from Tornado, Apache licensed.
-"""
-# Copyright 2012 Facebook
-#
-# Licensed under the Apache License, Version 2.0 (the "License"); you may
-# not use this file except in compliance with the License. You may obtain
-# a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-# License for the specific language governing permissions and limitations
-# under the License.
-
-import logging
-import sys
-
-try:
-    import curses
-except ImportError:
-    curses = None
-
-
-def _stderr_supports_color():
-    color = False
-    if curses and hasattr(sys.stderr, 'isatty') and sys.stderr.isatty():
-        try:
-            curses.setupterm()
-            if curses.tigetnum("colors") > 0:
-                color = True
-        except Exception:
-            pass
-    return color
-
-
-class LogFormatter(logging.Formatter):
-    """Log formatter with colour support
-    """
-    DEFAULT_COLORS = {
-        logging.INFO: 2,  # Green
-        logging.WARNING: 3,  # Yellow
-        logging.ERROR: 1,  # Red
-        logging.CRITICAL: 1,
-    }
-
-    def __init__(self, color=True, datefmt=None):
-        r"""
-        :arg bool color: Enables color support.
-        :arg string fmt: Log message format.
-        It will be applied to the attributes dict of log records. The
-        text between ``%(color)s`` and ``%(end_color)s`` will be colored
-        depending on the level if color support is on.
-        :arg dict colors: color mappings from logging level to terminal color
-        code
-        :arg string datefmt: Datetime format.
-        Used for formatting ``(asctime)`` placeholder in ``prefix_fmt``.
-        .. versionchanged:: 3.2
-        Added ``fmt`` and ``datefmt`` arguments.
-        """
-        logging.Formatter.__init__(self, datefmt=datefmt)
-        self._colors = {}
-        if color and _stderr_supports_color():
-            # The curses module has some str/bytes confusion in
-            # python3. Until version 3.2.3, most methods return
-            # bytes, but only accept strings. In addition, we want to
-            # output these strings with the logging module, which
-            # works with unicode strings. The explicit calls to
-            # unicode() below are harmless in python2 but will do the
-            # right conversion in python 3.
-            fg_color = (curses.tigetstr("setaf") or
-                        curses.tigetstr("setf") or "")
-            if (3, 0) < sys.version_info < (3, 2, 3):
-                fg_color = str(fg_color, "ascii")
-
-            for levelno, code in self.DEFAULT_COLORS.items():
-                self._colors[levelno] = str(
-                    curses.tparm(fg_color, code), "ascii")
-            self._normal = str(curses.tigetstr("sgr0"), "ascii")
-
-            scr = curses.initscr()
-            self.termwidth = scr.getmaxyx()[1]
-            curses.endwin()
-        else:
-            self._normal = ''
-            # Default width is usually 80, but too wide is
-            # worse than too narrow
-            self.termwidth = 70
-
-    def formatMessage(self, record):
-        mlen = len(record.message)
-        right_text = '{initial}-{name}'.format(initial=record.levelname[0],
-                                               name=record.name)
-        if mlen + len(right_text) < self.termwidth:
-            space = ' ' * (self.termwidth - (mlen + len(right_text)))
-        else:
-            space = '  '
-
-        if record.levelno in self._colors:
-            start_color = self._colors[record.levelno]
-            end_color = self._normal
-        else:
-            start_color = end_color = ''
-
-        return record.message + space + start_color + right_text + end_color
-
-
-def enable_colourful_output(level=logging.INFO):
-    handler = logging.StreamHandler()
-    handler.setFormatter(LogFormatter())
-    logging.root.addHandler(handler)
-    logging.root.setLevel(level)
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/compat.py b/env/lib/python3.10/site-packages/pip/_vendor/pep517/compat.py
deleted file mode 100644
index 730ef5f..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/compat.py
+++ /dev/null
@@ -1,51 +0,0 @@
-"""Python 2/3 compatibility"""
-import io
-import json
-import sys
-
-
-# Handle reading and writing JSON in UTF-8, on Python 3 and 2.
-
-if sys.version_info[0] >= 3:
-    # Python 3
-    def write_json(obj, path, **kwargs):
-        with open(path, 'w', encoding='utf-8') as f:
-            json.dump(obj, f, **kwargs)
-
-    def read_json(path):
-        with open(path, 'r', encoding='utf-8') as f:
-            return json.load(f)
-
-else:
-    # Python 2
-    def write_json(obj, path, **kwargs):
-        with open(path, 'wb') as f:
-            json.dump(obj, f, encoding='utf-8', **kwargs)
-
-    def read_json(path):
-        with open(path, 'rb') as f:
-            return json.load(f)
-
-
-# FileNotFoundError
-
-try:
-    FileNotFoundError = FileNotFoundError
-except NameError:
-    FileNotFoundError = IOError
-
-
-if sys.version_info < (3, 6):
-    from toml import load as _toml_load  # noqa: F401
-
-    def toml_load(f):
-        w = io.TextIOWrapper(f, encoding="utf8", newline="")
-        try:
-            return _toml_load(w)
-        finally:
-            w.detach()
-
-    from toml import TomlDecodeError as TOMLDecodeError  # noqa: F401
-else:
-    from pip._vendor.tomli import load as toml_load  # noqa: F401
-    from pip._vendor.tomli import TOMLDecodeError  # noqa: F401
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/dirtools.py b/env/lib/python3.10/site-packages/pip/_vendor/pep517/dirtools.py
deleted file mode 100644
index 58c6ca0..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/dirtools.py
+++ /dev/null
@@ -1,44 +0,0 @@
-import os
-import io
-import contextlib
-import tempfile
-import shutil
-import errno
-import zipfile
-
-
-@contextlib.contextmanager
-def tempdir():
-    """Create a temporary directory in a context manager."""
-    td = tempfile.mkdtemp()
-    try:
-        yield td
-    finally:
-        shutil.rmtree(td)
-
-
-def mkdir_p(*args, **kwargs):
-    """Like `mkdir`, but does not raise an exception if the
-    directory already exists.
-    """
-    try:
-        return os.mkdir(*args, **kwargs)
-    except OSError as exc:
-        if exc.errno != errno.EEXIST:
-            raise
-
-
-def dir_to_zipfile(root):
-    """Construct an in-memory zip file for a directory."""
-    buffer = io.BytesIO()
-    zip_file = zipfile.ZipFile(buffer, 'w')
-    for root, dirs, files in os.walk(root):
-        for path in dirs:
-            fs_path = os.path.join(root, path)
-            rel_path = os.path.relpath(fs_path, root)
-            zip_file.writestr(rel_path + '/', '')
-        for path in files:
-            fs_path = os.path.join(root, path)
-            rel_path = os.path.relpath(fs_path, root)
-            zip_file.write(fs_path, rel_path)
-    return zip_file
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/envbuild.py b/env/lib/python3.10/site-packages/pip/_vendor/pep517/envbuild.py
deleted file mode 100644
index fe8873c..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/envbuild.py
+++ /dev/null
@@ -1,171 +0,0 @@
-"""Build wheels/sdists by installing build deps to a temporary environment.
-"""
-
-import io
-import os
-import logging
-import shutil
-from subprocess import check_call
-import sys
-from sysconfig import get_paths
-from tempfile import mkdtemp
-
-from .compat import toml_load
-from .wrappers import Pep517HookCaller, LoggerWrapper
-
-log = logging.getLogger(__name__)
-
-
-def _load_pyproject(source_dir):
-    with io.open(
-            os.path.join(source_dir, 'pyproject.toml'),
-            'rb',
-            ) as f:
-        pyproject_data = toml_load(f)
-    buildsys = pyproject_data['build-system']
-    return (
-        buildsys['requires'],
-        buildsys['build-backend'],
-        buildsys.get('backend-path'),
-    )
-
-
-class BuildEnvironment(object):
-    """Context manager to install build deps in a simple temporary environment
-
-    Based on code I wrote for pip, which is MIT licensed.
-    """
-    # Copyright (c) 2008-2016 The pip developers (see AUTHORS.txt file)
-    #
-    # Permission is hereby granted, free of charge, to any person obtaining
-    # a copy of this software and associated documentation files (the
-    # "Software"), to deal in the Software without restriction, including
-    # without limitation the rights to use, copy, modify, merge, publish,
-    # distribute, sublicense, and/or sell copies of the Software, and to
-    # permit persons to whom the Software is furnished to do so, subject to
-    # the following conditions:
-    #
-    # The above copyright notice and this permission notice shall be
-    # included in all copies or substantial portions of the Software.
-    #
-    # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-    # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-    # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-    # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-    # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-    # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-    # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-    path = None
-
-    def __init__(self, cleanup=True):
-        self._cleanup = cleanup
-
-    def __enter__(self):
-        self.path = mkdtemp(prefix='pep517-build-env-')
-        log.info('Temporary build environment: %s', self.path)
-
-        self.save_path = os.environ.get('PATH', None)
-        self.save_pythonpath = os.environ.get('PYTHONPATH', None)
-
-        install_scheme = 'nt' if (os.name == 'nt') else 'posix_prefix'
-        install_dirs = get_paths(install_scheme, vars={
-            'base': self.path,
-            'platbase': self.path,
-        })
-
-        scripts = install_dirs['scripts']
-        if self.save_path:
-            os.environ['PATH'] = scripts + os.pathsep + self.save_path
-        else:
-            os.environ['PATH'] = scripts + os.pathsep + os.defpath
-
-        if install_dirs['purelib'] == install_dirs['platlib']:
-            lib_dirs = install_dirs['purelib']
-        else:
-            lib_dirs = install_dirs['purelib'] + os.pathsep + \
-                install_dirs['platlib']
-        if self.save_pythonpath:
-            os.environ['PYTHONPATH'] = lib_dirs + os.pathsep + \
-                self.save_pythonpath
-        else:
-            os.environ['PYTHONPATH'] = lib_dirs
-
-        return self
-
-    def pip_install(self, reqs):
-        """Install dependencies into this env by calling pip in a subprocess"""
-        if not reqs:
-            return
-        log.info('Calling pip to install %s', reqs)
-        cmd = [
-            sys.executable, '-m', 'pip', 'install', '--ignore-installed',
-            '--prefix', self.path] + list(reqs)
-        check_call(
-            cmd,
-            stdout=LoggerWrapper(log, logging.INFO),
-            stderr=LoggerWrapper(log, logging.ERROR),
-        )
-
-    def __exit__(self, exc_type, exc_val, exc_tb):
-        needs_cleanup = (
-            self._cleanup and
-            self.path is not None and
-            os.path.isdir(self.path)
-        )
-        if needs_cleanup:
-            shutil.rmtree(self.path)
-
-        if self.save_path is None:
-            os.environ.pop('PATH', None)
-        else:
-            os.environ['PATH'] = self.save_path
-
-        if self.save_pythonpath is None:
-            os.environ.pop('PYTHONPATH', None)
-        else:
-            os.environ['PYTHONPATH'] = self.save_pythonpath
-
-
-def build_wheel(source_dir, wheel_dir, config_settings=None):
-    """Build a wheel from a source directory using PEP 517 hooks.
-
-    :param str source_dir: Source directory containing pyproject.toml
-    :param str wheel_dir: Target directory to create wheel in
-    :param dict config_settings: Options to pass to build backend
-
-    This is a blocking function which will run pip in a subprocess to install
-    build requirements.
-    """
-    if config_settings is None:
-        config_settings = {}
-    requires, backend, backend_path = _load_pyproject(source_dir)
-    hooks = Pep517HookCaller(source_dir, backend, backend_path)
-
-    with BuildEnvironment() as env:
-        env.pip_install(requires)
-        reqs = hooks.get_requires_for_build_wheel(config_settings)
-        env.pip_install(reqs)
-        return hooks.build_wheel(wheel_dir, config_settings)
-
-
-def build_sdist(source_dir, sdist_dir, config_settings=None):
-    """Build an sdist from a source directory using PEP 517 hooks.
-
-    :param str source_dir: Source directory containing pyproject.toml
-    :param str sdist_dir: Target directory to place sdist in
-    :param dict config_settings: Options to pass to build backend
-
-    This is a blocking function which will run pip in a subprocess to install
-    build requirements.
-    """
-    if config_settings is None:
-        config_settings = {}
-    requires, backend, backend_path = _load_pyproject(source_dir)
-    hooks = Pep517HookCaller(source_dir, backend, backend_path)
-
-    with BuildEnvironment() as env:
-        env.pip_install(requires)
-        reqs = hooks.get_requires_for_build_sdist(config_settings)
-        env.pip_install(reqs)
-        return hooks.build_sdist(sdist_dir, config_settings)
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/in_process/__init__.py b/env/lib/python3.10/site-packages/pip/_vendor/pep517/in_process/__init__.py
deleted file mode 100644
index c932313..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/in_process/__init__.py
+++ /dev/null
@@ -1,17 +0,0 @@
-"""This is a subpackage because the directory is on sys.path for _in_process.py
-
-The subpackage should stay as empty as possible to avoid shadowing modules that
-the backend might import.
-"""
-from os.path import dirname, abspath, join as pjoin
-from contextlib import contextmanager
-
-try:
-    import importlib.resources as resources
-
-    def _in_proc_script_path():
-        return resources.path(__package__, '_in_process.py')
-except ImportError:
-    @contextmanager
-    def _in_proc_script_path():
-        yield pjoin(dirname(abspath(__file__)), '_in_process.py')
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/in_process/__pycache__/__init__.cpython-310.pyc b/env/lib/python3.10/site-packages/pip/_vendor/pep517/in_process/__pycache__/__init__.cpython-310.pyc
deleted file mode 100644
index 093aa79..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/in_process/__pycache__/__init__.cpython-310.pyc
+++ /dev/null
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/in_process/__pycache__/_in_process.cpython-310.pyc b/env/lib/python3.10/site-packages/pip/_vendor/pep517/in_process/__pycache__/_in_process.cpython-310.pyc
deleted file mode 100644
index c3c1d9a..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/in_process/__pycache__/_in_process.cpython-310.pyc
+++ /dev/null
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/in_process/_in_process.py b/env/lib/python3.10/site-packages/pip/_vendor/pep517/in_process/_in_process.py
deleted file mode 100644
index 954a4ab..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/in_process/_in_process.py
+++ /dev/null
@@ -1,363 +0,0 @@
-"""This is invoked in a subprocess to call the build backend hooks.
-
-It expects:
-- Command line args: hook_name, control_dir
-- Environment variables:
-      PEP517_BUILD_BACKEND=entry.point:spec
-      PEP517_BACKEND_PATH=paths (separated with os.pathsep)
-- control_dir/input.json:
-  - {"kwargs": {...}}
-
-Results:
-- control_dir/output.json
-  - {"return_val": ...}
-"""
-from glob import glob
-from importlib import import_module
-import json
-import os
-import os.path
-from os.path import join as pjoin
-import re
-import shutil
-import sys
-import traceback
-
-# This file is run as a script, and `import compat` is not zip-safe, so we
-# include write_json() and read_json() from compat.py.
-#
-# Handle reading and writing JSON in UTF-8, on Python 3 and 2.
-
-if sys.version_info[0] >= 3:
-    # Python 3
-    def write_json(obj, path, **kwargs):
-        with open(path, 'w', encoding='utf-8') as f:
-            json.dump(obj, f, **kwargs)
-
-    def read_json(path):
-        with open(path, 'r', encoding='utf-8') as f:
-            return json.load(f)
-
-else:
-    # Python 2
-    def write_json(obj, path, **kwargs):
-        with open(path, 'wb') as f:
-            json.dump(obj, f, encoding='utf-8', **kwargs)
-
-    def read_json(path):
-        with open(path, 'rb') as f:
-            return json.load(f)
-
-
-class BackendUnavailable(Exception):
-    """Raised if we cannot import the backend"""
-    def __init__(self, traceback):
-        self.traceback = traceback
-
-
-class BackendInvalid(Exception):
-    """Raised if the backend is invalid"""
-    def __init__(self, message):
-        self.message = message
-
-
-class HookMissing(Exception):
-    """Raised if a hook is missing and we are not executing the fallback"""
-    def __init__(self, hook_name=None):
-        super(HookMissing, self).__init__(hook_name)
-        self.hook_name = hook_name
-
-
-def contained_in(filename, directory):
-    """Test if a file is located within the given directory."""
-    filename = os.path.normcase(os.path.abspath(filename))
-    directory = os.path.normcase(os.path.abspath(directory))
-    return os.path.commonprefix([filename, directory]) == directory
-
-
-def _build_backend():
-    """Find and load the build backend"""
-    # Add in-tree backend directories to the front of sys.path.
-    backend_path = os.environ.get('PEP517_BACKEND_PATH')
-    if backend_path:
-        extra_pathitems = backend_path.split(os.pathsep)
-        sys.path[:0] = extra_pathitems
-
-    ep = os.environ['PEP517_BUILD_BACKEND']
-    mod_path, _, obj_path = ep.partition(':')
-    try:
-        obj = import_module(mod_path)
-    except ImportError:
-        raise BackendUnavailable(traceback.format_exc())
-
-    if backend_path:
-        if not any(
-            contained_in(obj.__file__, path)
-            for path in extra_pathitems
-        ):
-            raise BackendInvalid("Backend was not loaded from backend-path")
-
-    if obj_path:
-        for path_part in obj_path.split('.'):
-            obj = getattr(obj, path_part)
-    return obj
-
-
-def _supported_features():
-    """Return the list of options features supported by the backend.
-
-    Returns a list of strings.
-    The only possible value is 'build_editable'.
-    """
-    backend = _build_backend()
-    features = []
-    if hasattr(backend, "build_editable"):
-        features.append("build_editable")
-    return features
-
-
-def get_requires_for_build_wheel(config_settings):
-    """Invoke the optional get_requires_for_build_wheel hook
-
-    Returns [] if the hook is not defined.
-    """
-    backend = _build_backend()
-    try:
-        hook = backend.get_requires_for_build_wheel
-    except AttributeError:
-        return []
-    else:
-        return hook(config_settings)
-
-
-def get_requires_for_build_editable(config_settings):
-    """Invoke the optional get_requires_for_build_editable hook
-
-    Returns [] if the hook is not defined.
-    """
-    backend = _build_backend()
-    try:
-        hook = backend.get_requires_for_build_editable
-    except AttributeError:
-        return []
-    else:
-        return hook(config_settings)
-
-
-def prepare_metadata_for_build_wheel(
-        metadata_directory, config_settings, _allow_fallback):
-    """Invoke optional prepare_metadata_for_build_wheel
-
-    Implements a fallback by building a wheel if the hook isn't defined,
-    unless _allow_fallback is False in which case HookMissing is raised.
-    """
-    backend = _build_backend()
-    try:
-        hook = backend.prepare_metadata_for_build_wheel
-    except AttributeError:
-        if not _allow_fallback:
-            raise HookMissing()
-        whl_basename = backend.build_wheel(metadata_directory, config_settings)
-        return _get_wheel_metadata_from_wheel(whl_basename, metadata_directory,
-                                              config_settings)
-    else:
-        return hook(metadata_directory, config_settings)
-
-
-def prepare_metadata_for_build_editable(
-        metadata_directory, config_settings, _allow_fallback):
-    """Invoke optional prepare_metadata_for_build_editable
-
-    Implements a fallback by building an editable wheel if the hook isn't
-    defined, unless _allow_fallback is False in which case HookMissing is
-    raised.
-    """
-    backend = _build_backend()
-    try:
-        hook = backend.prepare_metadata_for_build_editable
-    except AttributeError:
-        if not _allow_fallback:
-            raise HookMissing()
-        try:
-            build_hook = backend.build_editable
-        except AttributeError:
-            raise HookMissing(hook_name='build_editable')
-        else:
-            whl_basename = build_hook(metadata_directory, config_settings)
-            return _get_wheel_metadata_from_wheel(whl_basename,
-                                                  metadata_directory,
-                                                  config_settings)
-    else:
-        return hook(metadata_directory, config_settings)
-
-
-WHEEL_BUILT_MARKER = 'PEP517_ALREADY_BUILT_WHEEL'
-
-
-def _dist_info_files(whl_zip):
-    """Identify the .dist-info folder inside a wheel ZipFile."""
-    res = []
-    for path in whl_zip.namelist():
-        m = re.match(r'[^/\\]+-[^/\\]+\.dist-info/', path)
-        if m:
-            res.append(path)
-    if res:
-        return res
-    raise Exception("No .dist-info folder found in wheel")
-
-
-def _get_wheel_metadata_from_wheel(
-        whl_basename, metadata_directory, config_settings):
-    """Extract the metadata from a wheel.
-
-    Fallback for when the build backend does not
-    define the 'get_wheel_metadata' hook.
-    """
-    from zipfile import ZipFile
-    with open(os.path.join(metadata_directory, WHEEL_BUILT_MARKER), 'wb'):
-        pass  # Touch marker file
-
-    whl_file = os.path.join(metadata_directory, whl_basename)
-    with ZipFile(whl_file) as zipf:
-        dist_info = _dist_info_files(zipf)
-        zipf.extractall(path=metadata_directory, members=dist_info)
-    return dist_info[0].split('/')[0]
-
-
-def _find_already_built_wheel(metadata_directory):
-    """Check for a wheel already built during the get_wheel_metadata hook.
-    """
-    if not metadata_directory:
-        return None
-    metadata_parent = os.path.dirname(metadata_directory)
-    if not os.path.isfile(pjoin(metadata_parent, WHEEL_BUILT_MARKER)):
-        return None
-
-    whl_files = glob(os.path.join(metadata_parent, '*.whl'))
-    if not whl_files:
-        print('Found wheel built marker, but no .whl files')
-        return None
-    if len(whl_files) > 1:
-        print('Found multiple .whl files; unspecified behaviour. '
-              'Will call build_wheel.')
-        return None
-
-    # Exactly one .whl file
-    return whl_files[0]
-
-
-def build_wheel(wheel_directory, config_settings, metadata_directory=None):
-    """Invoke the mandatory build_wheel hook.
-
-    If a wheel was already built in the
-    prepare_metadata_for_build_wheel fallback, this
-    will copy it rather than rebuilding the wheel.
-    """
-    prebuilt_whl = _find_already_built_wheel(metadata_directory)
-    if prebuilt_whl:
-        shutil.copy2(prebuilt_whl, wheel_directory)
-        return os.path.basename(prebuilt_whl)
-
-    return _build_backend().build_wheel(wheel_directory, config_settings,
-                                        metadata_directory)
-
-
-def build_editable(wheel_directory, config_settings, metadata_directory=None):
-    """Invoke the optional build_editable hook.
-
-    If a wheel was already built in the
-    prepare_metadata_for_build_editable fallback, this
-    will copy it rather than rebuilding the wheel.
-    """
-    backend = _build_backend()
-    try:
-        hook = backend.build_editable
-    except AttributeError:
-        raise HookMissing()
-    else:
-        prebuilt_whl = _find_already_built_wheel(metadata_directory)
-        if prebuilt_whl:
-            shutil.copy2(prebuilt_whl, wheel_directory)
-            return os.path.basename(prebuilt_whl)
-
-        return hook(wheel_directory, config_settings, metadata_directory)
-
-
-def get_requires_for_build_sdist(config_settings):
-    """Invoke the optional get_requires_for_build_wheel hook
-
-    Returns [] if the hook is not defined.
-    """
-    backend = _build_backend()
-    try:
-        hook = backend.get_requires_for_build_sdist
-    except AttributeError:
-        return []
-    else:
-        return hook(config_settings)
-
-
-class _DummyException(Exception):
-    """Nothing should ever raise this exception"""
-
-
-class GotUnsupportedOperation(Exception):
-    """For internal use when backend raises UnsupportedOperation"""
-    def __init__(self, traceback):
-        self.traceback = traceback
-
-
-def build_sdist(sdist_directory, config_settings):
-    """Invoke the mandatory build_sdist hook."""
-    backend = _build_backend()
-    try:
-        return backend.build_sdist(sdist_directory, config_settings)
-    except getattr(backend, 'UnsupportedOperation', _DummyException):
-        raise GotUnsupportedOperation(traceback.format_exc())
-
-
-HOOK_NAMES = {
-    'get_requires_for_build_wheel',
-    'prepare_metadata_for_build_wheel',
-    'build_wheel',
-    'get_requires_for_build_editable',
-    'prepare_metadata_for_build_editable',
-    'build_editable',
-    'get_requires_for_build_sdist',
-    'build_sdist',
-    '_supported_features',
-}
-
-
-def main():
-    if len(sys.argv) < 3:
-        sys.exit("Needs args: hook_name, control_dir")
-    hook_name = sys.argv[1]
-    control_dir = sys.argv[2]
-    if hook_name not in HOOK_NAMES:
-        sys.exit("Unknown hook: %s" % hook_name)
-    hook = globals()[hook_name]
-
-    hook_input = read_json(pjoin(control_dir, 'input.json'))
-
-    json_out = {'unsupported': False, 'return_val': None}
-    try:
-        json_out['return_val'] = hook(**hook_input['kwargs'])
-    except BackendUnavailable as e:
-        json_out['no_backend'] = True
-        json_out['traceback'] = e.traceback
-    except BackendInvalid as e:
-        json_out['backend_invalid'] = True
-        json_out['backend_error'] = e.message
-    except GotUnsupportedOperation as e:
-        json_out['unsupported'] = True
-        json_out['traceback'] = e.traceback
-    except HookMissing as e:
-        json_out['hook_missing'] = True
-        json_out['missing_hook_name'] = e.hook_name or hook_name
-
-    write_json(json_out, pjoin(control_dir, 'output.json'), indent=2)
-
-
-if __name__ == '__main__':
-    main()
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/meta.py b/env/lib/python3.10/site-packages/pip/_vendor/pep517/meta.py
deleted file mode 100644
index d525de5..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/meta.py
+++ /dev/null
@@ -1,92 +0,0 @@
-"""Build metadata for a project using PEP 517 hooks.
-"""
-import argparse
-import logging
-import os
-import shutil
-import functools
-
-try:
-    import importlib.metadata as imp_meta
-except ImportError:
-    import importlib_metadata as imp_meta
-
-try:
-    from zipfile import Path
-except ImportError:
-    from zipp import Path
-
-from .envbuild import BuildEnvironment
-from .wrappers import Pep517HookCaller, quiet_subprocess_runner
-from .dirtools import tempdir, mkdir_p, dir_to_zipfile
-from .build import validate_system, load_system, compat_system
-
-log = logging.getLogger(__name__)
-
-
-def _prep_meta(hooks, env, dest):
-    reqs = hooks.get_requires_for_build_wheel({})
-    log.info('Got build requires: %s', reqs)
-
-    env.pip_install(reqs)
-    log.info('Installed dynamic build dependencies')
-
-    with tempdir() as td:
-        log.info('Trying to build metadata in %s', td)
-        filename = hooks.prepare_metadata_for_build_wheel(td, {})
-        source = os.path.join(td, filename)
-        shutil.move(source, os.path.join(dest, os.path.basename(filename)))
-
-
-def build(source_dir='.', dest=None, system=None):
-    system = system or load_system(source_dir)
-    dest = os.path.join(source_dir, dest or 'dist')
-    mkdir_p(dest)
-    validate_system(system)
-    hooks = Pep517HookCaller(
-        source_dir, system['build-backend'], system.get('backend-path')
-    )
-
-    with hooks.subprocess_runner(quiet_subprocess_runner):
-        with BuildEnvironment() as env:
-            env.pip_install(system['requires'])
-            _prep_meta(hooks, env, dest)
-
-
-def build_as_zip(builder=build):
-    with tempdir() as out_dir:
-        builder(dest=out_dir)
-        return dir_to_zipfile(out_dir)
-
-
-def load(root):
-    """
-    Given a source directory (root) of a package,
-    return an importlib.metadata.Distribution object
-    with metadata build from that package.
-    """
-    root = os.path.expanduser(root)
-    system = compat_system(root)
-    builder = functools.partial(build, source_dir=root, system=system)
-    path = Path(build_as_zip(builder))
-    return imp_meta.PathDistribution(path)
-
-
-parser = argparse.ArgumentParser()
-parser.add_argument(
-    'source_dir',
-    help="A directory containing pyproject.toml",
-)
-parser.add_argument(
-    '--out-dir', '-o',
-    help="Destination in which to save the builds relative to source dir",
-)
-
-
-def main():
-    args = parser.parse_args()
-    build(args.source_dir, args.out_dir)
-
-
-if __name__ == '__main__':
-    main()
diff --git a/env/lib/python3.10/site-packages/pip/_vendor/pep517/wrappers.py b/env/lib/python3.10/site-packages/pip/_vendor/pep517/wrappers.py
deleted file mode 100644
index e031ed7..0000000
--- a/env/lib/python3.10/site-packages/pip/_vendor/pep517/wrappers.py
+++ /dev/null
@@ -1,375 +0,0 @@
-import threading
-from contextlib import contextmanager
-import os
-from os.path import abspath, join as pjoin
-import shutil
-from subprocess import check_call, check_output, STDOUT
-import sys
-from tempfile import mkdtemp
-
-from . import compat
-from .in_process import _in_proc_script_path
-
-__all__ = [
-    'BackendUnavailable',
-    'BackendInvalid',
-    'HookMissing',
-    'UnsupportedOperation',
-    'default_subprocess_runner',
-    'quiet_subprocess_runner',
-    'Pep517HookCaller',
-]
-
-
-@contextmanager
-def tempdir():
-    td = mkdtemp()
-    try:
-        yield td
-    finally:
-        shutil.rmtree(td)
-
-
-class BackendUnavailable(Exception):
-    """Will be raised if the backend cannot be imported in the hook process."""
-    def __init__(self, traceback):
-        self.traceback = traceback
-
-
-class BackendInvalid(Exception):
-    """Will be raised if the backend is invalid."""
-    def __init__(self, backend_name, backend_path, message):
-        self.backend_name = backend_name
-        self.backend_path = backend_path
-        self.message = message
-
-
-class HookMissing(Exception):
-    """Will be raised on missing hooks."""
-    def __init__(self, hook_name):
-        super(HookMissing, self).__init__(hook_name)
-        self.hook_name = hook_name
-
-
-class UnsupportedOperation(Exception):
-    """May be raised by build_sdist if the backend indicates that it can't."""
-    def __init__(self, traceback):
-        self.traceback = traceback
-
-
-def default_subprocess_runner(cmd, cwd=None, extra_environ=None):
-    """The default method of calling the wrapper subprocess."""
-    env = os.environ.copy()
-    if extra_environ:
-        env.update(extra_environ)
-
-    check_call(cmd, cwd=cwd, env=env)
-
-
-def quiet_subprocess_runner(cmd, cwd=None, extra_environ=None):
-    """A method of calling the wrapper subprocess while suppressing output."""
-    env = os.environ.copy()
-    if extra_environ:
-        env.update(extra_environ)
-
-    check_output(cmd, cwd=cwd, env=env, stderr=STDOUT)
-
-
-def norm_and_check(source_tree, requested):
-    """Normalise and check a backend path.
-
-    Ensure that the requested backend path is specified as a relative path,
-    and resolves to a location under the given source tree.
-
-    Return an absolute version of the requested path.
-    """
-    if os.path.isabs(requested):
-        raise ValueError("paths must be relative")
-
-    abs_source = os.path.abspath(source_tree)
-    abs_requested = os.path.normpath(os.path.join(abs_source, requested))
-    # We have to use commonprefix for Python 2.7 compatibility. So we
-    # normalise case to avoid problems because commonprefix is a character
-    # based comparison :-(
-    norm_source = os.path.normcase(abs_source)
-    norm_requested = os.path.normcase(abs_requested)
-    if os.path.commonprefix([norm_source, norm_requested]) != norm_source:
-        raise ValueError("paths must be inside source tree")
-
-    return abs_requested
-
-
-class Pep517HookCaller(object):
-    """A wrapper around a source directory to be built with a PEP 517 backend.
-
-    :param source_dir: The path to the source directory, containing
-        pyproject.toml.
-    :param build_backend: The build backend spec, as per PEP 517, from
-        pyproject.toml.
-    :param backend_path: The backend path, as per PEP 517, from pyproject.toml.
-    :param runner: A callable that invokes the wrapper subprocess.
-    :param python_executable: The Python executable used to invoke the backend
-
-    The 'runner', if provided, must expect the following:
-
-    - cmd: a list of strings representing the command and arguments to
-      execute, as would be passed to e.g. 'subprocess.check_call'.
-    - cwd: a string representing the working directory that must be
-      used for the subprocess. Corresponds to the provided source_dir.
-    - extra_environ: a dict mapping environment variable names to values
-      which must be set for the subprocess execution.
-    """
-    def __init__(
-            self,
-            source_dir,
-            build_backend,
-            backend_path=None,
-            runner=None,
-            python_executable=None,
-    ):
-        if runner is None:
-            runner = default_subprocess_runner
-
-        self.source_dir = abspath(source_dir)
-        self.build_backend = build_backend
-        if backend_path:
-            backend_path = [
-                norm_and_check(self.source_dir, p) for p in backend_path
-            ]
-        self.backend_path = backend_path
-        self._subprocess_runner = runner
-        if not python_executable:
-            python_executable = sys.executable
-        self.python_executable = python_executable
-
-    @contextmanager
-    def subprocess_runner(self, runner):
-        """A context manager for temporarily overriding the default subprocess
-        runner.
-        """
-        prev = self._subprocess_runner
-        self._subprocess_runner = runner
-        try:
-            yield
-        finally:
-            self._subprocess_runner = prev
-
-    def _supported_features(self):
-        """Return the list of optional features supported by the backend."""
-        return self._call_hook('_supported_features', {})
-
-    def get_requires_for_build_wheel(self, config_settings=None):
-        """Identify packages required for building a wheel
-
-        Returns a list of dependency specifications, e.g.::
-
-            ["wheel >= 0.25", "setuptools"]
-
-        This does not include requirements specified in pyproject.toml.
-        It returns the result of calling the equivalently named hook in a
-        subprocess.
-        """
-        return self._call_hook('get_requires_for_build_wheel', {
-            'config_settings': config_settings
-        })
-
-    def prepare_metadata_for_build_wheel(
-            self, metadata_directory, config_settings=None,
-            _allow_fallback=True):
-        """Prepare a ``*.dist-info`` folder with metadata for this project.
-
-        Returns the name of the newly created folder.
-
-        If the build backend defines a hook with this name, it will be called
-        in a subprocess. If not, the backend will be asked to build a wheel,
-        and the dist-info extracted from that (unless _allow_fallback is
-        False).
-        """
-        return self._call_hook('prepare_metadata_for_build_wheel', {
-            'metadata_directory': abspath(metadata_directory),
-            'config_settings': config_settings,
-            '_allow_fallback': _allow_fallback,
-        })
-
-    def build_wheel(
-            self, wheel_directory, config_settings=None,
-            metadata_directory=None):
-        """Build a wheel from this project.
-
-        Returns the name of the newly created file.
-
-        In general, this will call the 'build_wheel' hook in the backend.
-        However, if that was previously called by
-        'prepare_metadata_for_build_wheel', and the same metadata_directory is
-        used, the previously built wheel will be copied to wheel_directory.
-        """
-        if metadata_directory is not None:
-            metadata_directory = abspath(metadata_directory)
-        return self._call_hook('build_wheel', {
-            'wheel_directory': abspath(wheel_directory),
-            'config_settings': config_settings,
-            'metadata_directory': metadata_directory,
-        })
-
-    def get_requires_for_build_editable(self, config_settings=None):
-        """Identify packages required for building an editable wheel
-
-        Returns a list of dependency specifications, e.g.::
-
-            ["wheel >= 0.25", "setuptools"]
-
-        This does not include requirements specified in pyproject.toml.
-        It returns the result of calling the equivalently named hook in a
-        subprocess.
-        """
-        return self._call_hook('get_requires_for_build_editable', {
-            'config_settings': config_settings
-        })
-
-    def prepare_metadata_for_build_editable(
-            self, metadata_directory, config_settings=None,
-            _allow_fallback=True):
-        """Prepare a ``*.dist-info`` folder with metadata for this project.
-
-        Returns the name of the newly created folder.
-
-        If the build backend defines a hook with this name, it will be called
-        in a subprocess. If not, the backend will be asked to build an editable
-        wheel, and the dist-info extracted from that (unless _allow_fallback is
-        False).
-        """
-        return self._call_hook('prepare_metadata_for_build_editable', {
-            'metadata_directory': abspath(metadata_directory),
-            'config_settings': config_settings,
-            '_allow_fallback': _allow_fallback,
-        })
-
-    def build_editable(
-            self, wheel_directory, config_settings=None,
-            metadata_directory=None):
-        """Build an editable wheel from this project.
-
-        Returns the name of the newly created file.
-
-        In general, this will call the 'build_editable' hook in the backend.
-        However, if that was previously called by
-        'prepare_metadata_for_build_editable', and the same metadata_directory
-        is used, the previously built wheel will be copied to wheel_directory.
-        """
-        if metadata_directory is not None:
-            metadata_directory = abspath(metadata_directory)
-        return self._call_hook('build_editable', {
-            'wheel_directory': abspath(wheel_directory),
-            'config_settings': config_settings,
-            'metadata_directory': metadata_directory,
-        })
-
-    def get_requires_for_build_sdist(self, config_settings=None):
-        """Identify packages required for building a wheel
-
-        Returns a list of dependency specifications, e.g.::
-
-            ["setuptools >= 26"]
-
-        This does not include requirements specified in pyproject.toml.
-        It returns the result of calling the equivalently named hook in a
-        subprocess.
-        """
-        return self._call_hook('get_requires_for_build_sdist', {
-            'config_settings': config_settings
-        })
-
-    def build_sdist(self, sdist_directory, config_settings=None):
-        """Build an sdist from this project.
-
-        Returns the name of the newly created file.
-
-        This calls the 'build_sdist' backend hook in a subprocess.
-        """
-        return self._call_hook('build_sdist', {
-            'sdist_directory': abspath(sdist_directory),
-            'config_settings': config_settings,
-        })
-
-    def _call_hook(self, hook_name, kwargs):
-        # On Python 2, pytoml returns Unicode values (which is correct) but the
-        # environment passed to check_call needs to contain string values. We
-        # convert here by encoding using ASCII (the backend can only contain
-        # letters, digits and _, . and : characters, and will be used as a
-        # Python identifier, so non-ASCII content is wrong on Python 2 in
-        # any case).
-        # For backend_path, we use sys.getfilesystemencoding.
-        if sys.version_info[0] == 2:
-            build_backend = self.build_backend.encode('ASCII')
-        else:
-            build_backend = self.build_backend
-        extra_environ = {'PEP517_BUILD_BACKEND': build_backend}
-
-        if self.backend_path:
-            backend_path = os.pathsep.join(self.backend_path)
-            if sys.version_info[0] == 2:
-                backend_path = backend_path.encode(sys.getfilesystemencoding())
-            extra_environ['PEP517_BACKEND_PATH'] = backend_path
-
-        with tempdir() as td:
-            hook_input = {'kwargs': kwargs}
-            compat.write_json(hook_input, pjoin(td, 'input.json'),
-                              indent=2)
-
-            # Run the hook in a subprocess
-            with _in_proc_script_path() as script:
-                python = self.python_executable
-                self._subprocess_runner(
-                    [python, abspath(str(script)), hook_name, td],
-                    cwd=self.source_dir,
-                    extra_environ=extra_environ
-                )
-
-            data = compat.read_json(pjoin(td, 'output.json'))
-            if data.get('unsupported'):
-                raise UnsupportedOperation(data.get('traceback', ''))
-            if data.get('no_backend'):
-                raise BackendUnavailable(data.get('traceback', ''))
-            if data.get('backend_invalid'):
-                raise BackendInvalid(
-                    backend_name=self.build_backend,
-                    backend_path=self.backend_path,
-                    message=data.get('backend_error', '')
-                )
-            if data.get('hook_missing'):
-                raise HookMissing(data.get('missing_hook_name') or hook_name)
-            return data['return_val']
-
-
-class LoggerWrapper(threading.Thread):
-    """
-    Read messages from a pipe and redirect them
-    to a logger (see python's logging module).
-    """
-
-    def __init__(self, logger, level):
-        threading.Thread.__init__(self)
-        self.daemon = True
-
-        self.logger = logger
-        self.level = level
-
-        # create the pipe and reader
-        self.fd_read, self.fd_write = os.pipe()
-        self.reader = os.fdopen(self.fd_read)
-
-        self.start()
-
-    def fileno(self):
-        return self.fd_write
-
-    @staticmethod
-    def remove_newline(msg):
-        return msg[:-1] if msg.endswith(os.linesep) else msg
-
-    def run(self):
-        for line in self.reader:
-            self._write(self.remove_newline(line))
-
-    def _write(self, message):
-        self.logger.log(self.level, message)