Todo: 集成多平台 解决因SaiNiu线程抢占资源问题 本地提交测试环境打包 和 正式打包脚本与正式环境打包bat 提交Python32环境包 改进多日志文件生成情况修改打包日志细节

Utils/PythonNew32/Lib/site-packages/PyInstaller/loader/__init__.py

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+#

Utils/PythonNew32/Lib/site-packages/PyInstaller/loader/pyiboot01_bootstrap.py

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+#-----------------------------------------------------------------------------
+# Copyright (c) 2005-2023, PyInstaller Development Team.
+#
+# Distributed under the terms of the GNU General Public License (version 2
+# or later) with exception for distributing the bootloader.
+#
+# The full license is in the file COPYING.txt, distributed with this software.
+#
+# SPDX-License-Identifier: (GPL-2.0-or-later WITH Bootloader-exception)
+#-----------------------------------------------------------------------------
+
+#-- Start bootstrap process
+# Only python built-in modules can be used.
+
+import sys
+
+import pyimod02_importers
+
+# Extend Python import machinery by adding PEP302 importers to sys.meta_path.
+pyimod02_importers.install()
+
+#-- Bootstrap process is complete.
+# We can use other python modules (e.g. os)
+
+import os  # noqa: E402
+
+# Let other python modules know that the code is running in frozen mode.
+if not hasattr(sys, 'frozen'):
+    sys.frozen = True
+
+# sys._MEIPASS is now set in the bootloader. Hooray.
+
+# Python 3 C-API function Py_SetPath() resets sys.prefix to empty string. Python 2 was using PYTHONHOME for sys.prefix.
+# Let's do the same for Python 3.
+sys.prefix = sys._MEIPASS
+sys.exec_prefix = sys.prefix
+
+# Python 3.3+ defines also sys.base_prefix. Let's set them too.
+sys.base_prefix = sys.prefix
+sys.base_exec_prefix = sys.exec_prefix
+
+# Some packages behave differently when running inside virtual environment. E.g., IPython tries to append path
+# VIRTUAL_ENV to sys.path. For the frozen app we want to prevent this behavior.
+VIRTENV = 'VIRTUAL_ENV'
+if VIRTENV in os.environ:
+    # On some platforms (e.g., AIX) 'os.unsetenv()' is unavailable and deleting the var from os.environ does not
+    # delete it from the environment.
+    os.environ[VIRTENV] = ''
+    del os.environ[VIRTENV]
+
+# Ensure sys.path contains absolute paths. Otherwise, import of other python modules will fail when current working
+# directory is changed by the frozen application.
+python_path = []
+for pth in sys.path:
+    python_path.append(os.path.abspath(pth))
+    sys.path = python_path
+
+# At least on Windows, Python seems to hook up the codecs on this import, so it is not enough to just package up all
+# the encodings.
+#
+# It was also reported that without 'encodings' module, the frozen executable fails to load in some configurations:
+# http://www.pyinstaller.org/ticket/651
+#
+# Importing 'encodings' module in a run-time hook is not enough, since some run-time hooks require this module, and the
+# order of running the code from the run-time hooks is not defined.
+try:
+    import encodings  # noqa: F401
+except ImportError:
+    pass
+
+# In the Python interpreter 'warnings' module is imported when 'sys.warnoptions' is not empty. Mimic this behavior.
+if sys.warnoptions:
+    import warnings  # noqa: F401
+
+# Install the hooks for ctypes
+import pyimod03_ctypes  # noqa: E402
+
+pyimod03_ctypes.install()
+
+# Install the hooks for pywin32 (Windows only)
+if sys.platform.startswith('win'):
+    import pyimod04_pywin32
+    pyimod04_pywin32.install()
+
+# Apply a hack for metadata that was collected from (unzipped) python eggs; the EGG-INFO directories are collected into
+# their parent directories (my_package-version.egg/EGG-INFO), and for metadata to be discoverable by
+# `importlib.metadata`, the .egg directory needs to be in `sys.path`. The deprecated `pkg_resources` does not have this
+# limitation, and seems to work as long as the .egg directory's parent directory (in our case `sys._MEIPASS` is in
+# `sys.path`.
+for entry in os.listdir(sys._MEIPASS):
+    entry = os.path.join(sys._MEIPASS, entry)
+    if not os.path.isdir(entry):
+        continue
+    if entry.endswith('.egg'):
+        sys.path.append(entry)

Utils/PythonNew32/Lib/site-packages/PyInstaller/loader/pyimod01_archive.py

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+#-----------------------------------------------------------------------------
+# Copyright (c) 2005-2023, PyInstaller Development Team.
+#
+# Distributed under the terms of the GNU General Public License (version 2
+# or later) with exception for distributing the bootloader.
+#
+# The full license is in the file COPYING.txt, distributed with this software.
+#
+# SPDX-License-Identifier: (GPL-2.0-or-later WITH Bootloader-exception)
+#-----------------------------------------------------------------------------
+
+# **NOTE** This module is used during bootstrap.
+# Import *ONLY* builtin modules or modules that are collected into the base_library.zip archive.
+# List of built-in modules: sys.builtin_module_names
+# List of modules collected into base_library.zip: PyInstaller.compat.PY3_BASE_MODULES
+
+import os
+import struct
+import marshal
+import zlib
+
+# In Python3, the MAGIC_NUMBER value is available in the importlib module. However, in the bootstrap phase we cannot use
+# importlib directly, but rather its frozen variant.
+import _frozen_importlib
+
+PYTHON_MAGIC_NUMBER = _frozen_importlib._bootstrap_external.MAGIC_NUMBER
+
+# Type codes for PYZ PYZ entries
+PYZ_ITEM_MODULE = 0
+PYZ_ITEM_PKG = 1
+PYZ_ITEM_DATA = 2  # deprecated; PYZ does not contain any data entries anymore
+PYZ_ITEM_NSPKG = 3  # PEP-420 namespace package
+
+
+class ArchiveReadError(RuntimeError):
+    pass
+
+
+class ZlibArchiveReader:
+    """
+    Reader for PyInstaller's PYZ (ZlibArchive) archive. The archive is used to store collected byte-compiled Python
+    modules, as individually-compressed entries.
+    """
+    _PYZ_MAGIC_PATTERN = b'PYZ\0'
+
+    def __init__(self, filename, start_offset=None, check_pymagic=False):
+        self._filename = filename
+        self._start_offset = start_offset
+
+        self.toc = {}
+
+        # If no offset is given, try inferring it from filename
+        if start_offset is None:
+            self._filename, self._start_offset = self._parse_offset_from_filename(filename)
+
+        # Parse header and load TOC. Standard header contains 12 bytes: PYZ magic pattern, python bytecode magic
+        # pattern, and offset to TOC (32-bit integer). It might be followed by additional fields, depending on
+        # implementation version.
+        with open(self._filename, "rb") as fp:
+            # Read PYZ magic pattern, located at the start of the file
+            fp.seek(self._start_offset, os.SEEK_SET)
+
+            magic = fp.read(len(self._PYZ_MAGIC_PATTERN))
+            if magic != self._PYZ_MAGIC_PATTERN:
+                raise ArchiveReadError("PYZ magic pattern mismatch!")
+
+            # Read python magic/version number
+            pymagic = fp.read(len(PYTHON_MAGIC_NUMBER))
+            if check_pymagic and pymagic != PYTHON_MAGIC_NUMBER:
+                raise ArchiveReadError("Python magic pattern mismatch!")
+
+            # Read TOC offset
+            toc_offset, *_ = struct.unpack('!i', fp.read(4))
+
+            # Load TOC
+            fp.seek(self._start_offset + toc_offset, os.SEEK_SET)
+            self.toc = dict(marshal.load(fp))
+
+    @staticmethod
+    def _parse_offset_from_filename(filename):
+        """
+        Parse the numeric offset from filename, stored as: `/path/to/file?offset`.
+        """
+        offset = 0
+
+        idx = filename.rfind('?')
+        if idx == -1:
+            return filename, offset
+
+        try:
+            offset = int(filename[idx + 1:])
+            filename = filename[:idx]  # Remove the offset from filename
+        except ValueError:
+            # Ignore spurious "?" in the path (for example, like in Windows UNC \\?\<path>).
+            pass
+
+        return filename, offset
+
+    def extract(self, name, raw=False):
+        """
+        Extract data from entry with the given name.
+
+        If the entry belongs to a module or a package, the data is loaded (unmarshaled) into code object. To retrieve
+        raw data, set `raw` flag to True.
+        """
+        # Look up entry
+        entry = self.toc.get(name)
+        if entry is None:
+            return None
+        typecode, entry_offset, entry_length = entry
+
+        # Read data blob
+        try:
+            with open(self._filename, "rb") as fp:
+                fp.seek(self._start_offset + entry_offset)
+                obj = fp.read(entry_length)
+        except FileNotFoundError:
+            # We open the archive file each time we need to read from it, to avoid locking the file by keeping it open.
+            # This allows executable to be deleted or moved (renamed) while it is running, which is useful in certain
+            # scenarios (e.g., automatic update that replaces the executable). The caveat is that once the executable is
+            # renamed, we cannot read from its embedded PYZ archive anymore. In such case, exit with informative
+            # message.
+            raise SystemExit(
+                f"ERROR: {self._filename} appears to have been moved or deleted since this application was launched. "
+                "Continouation from this state is impossible. Exiting now."
+            )
+
+        try:
+            obj = zlib.decompress(obj)
+            if typecode in (PYZ_ITEM_MODULE, PYZ_ITEM_PKG, PYZ_ITEM_NSPKG) and not raw:
+                obj = marshal.loads(obj)
+        except EOFError as e:
+            raise ImportError(f"Failed to unmarshal PYZ entry {name!r}!") from e
+
+        return obj

Utils/PythonNew32/Lib/site-packages/PyInstaller/loader/pyimod02_importers.py

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+#-----------------------------------------------------------------------------
+# Copyright (c) 2005-2023, PyInstaller Development Team.
+#
+# Distributed under the terms of the GNU General Public License (version 2
+# or later) with exception for distributing the bootloader.
+#
+# The full license is in the file COPYING.txt, distributed with this software.
+#
+# SPDX-License-Identifier: (GPL-2.0-or-later WITH Bootloader-exception)
+#-----------------------------------------------------------------------------
+"""
+PEP-302 and PEP-451 importers for frozen applications.
+"""
+
+# **NOTE** This module is used during bootstrap.
+# Import *ONLY* builtin modules or modules that are collected into the base_library.zip archive.
+# List of built-in modules: sys.builtin_module_names
+# List of modules collected into base_library.zip: PyInstaller.compat.PY3_BASE_MODULES
+
+import sys
+import os
+import io
+
+import _frozen_importlib
+import _thread
+
+import pyimod01_archive
+
+if sys.flags.verbose and sys.stderr:
+
+    def trace(msg, *a):
+        sys.stderr.write(msg % a)
+        sys.stderr.write("\n")
+else:
+
+    def trace(msg, *a):
+        pass
+
+
+def _decode_source(source_bytes):
+    """
+    Decode bytes representing source code and return the string. Universal newline support is used in the decoding.
+    Based on CPython's implementation of the same functionality:
+    https://github.com/python/cpython/blob/3.9/Lib/importlib/_bootstrap_external.py#L679-L688
+    """
+    # Local import to avoid including `tokenize` and its dependencies in `base_library.zip`
+    from tokenize import detect_encoding
+    source_bytes_readline = io.BytesIO(source_bytes).readline
+    encoding = detect_encoding(source_bytes_readline)
+    newline_decoder = io.IncrementalNewlineDecoder(decoder=None, translate=True)
+    return newline_decoder.decode(source_bytes.decode(encoding[0]))
+
+
+# Global instance of PYZ archive reader. Initialized by install().
+pyz_archive = None
+
+# Some runtime hooks might need to traverse available frozen package/module hierarchy to simulate filesystem.
+# Such traversals can be efficiently implemented using a prefix tree (trie), whose computation we defer until first
+# access.
+_pyz_tree_lock = _thread.RLock()
+_pyz_tree = None
+
+
+def get_pyz_toc_tree():
+    global _pyz_tree
+
+    with _pyz_tree_lock:
+        if _pyz_tree is None:
+            _pyz_tree = _build_pyz_prefix_tree(pyz_archive)
+        return _pyz_tree
+
+
+# Populate list of unresolved (original) and resolved paths to top-level directory, used when trying to determine
+# relative path.
+_TOP_LEVEL_DIRECTORY_PATHS = []
+
+# Original sys._MEIPASS value; ensure separators are normalized (e.g., when using msys2 python).
+_TOP_LEVEL_DIRECTORY = os.path.normpath(sys._MEIPASS)
+_TOP_LEVEL_DIRECTORY_PATHS.append(_TOP_LEVEL_DIRECTORY)
+
+# Fully resolve sys._MEIPASS in case its location is symlinked at some level; for example, system temporary directory
+# (used by onefile builds) is usually a symbolic link under macOS.
+_RESOLVED_TOP_LEVEL_DIRECTORY = os.path.realpath(_TOP_LEVEL_DIRECTORY)
+if os.path.normcase(_RESOLVED_TOP_LEVEL_DIRECTORY) != os.path.normcase(_TOP_LEVEL_DIRECTORY):
+    _TOP_LEVEL_DIRECTORY_PATHS.append(_RESOLVED_TOP_LEVEL_DIRECTORY)
+
+# If we are running as macOS .app bundle, compute the alternative top-level directory path as well.
+_is_macos_app_bundle = False
+if sys.platform == 'darwin' and _TOP_LEVEL_DIRECTORY.endswith("Contents/Frameworks"):
+    _is_macos_app_bundle = True
+
+    _ALTERNATIVE_TOP_LEVEL_DIRECTORY = os.path.join(
+        os.path.dirname(_TOP_LEVEL_DIRECTORY),
+        'Resources',
+    )
+    _TOP_LEVEL_DIRECTORY_PATHS.append(_ALTERNATIVE_TOP_LEVEL_DIRECTORY)
+
+    _RESOLVED_ALTERNATIVE_TOP_LEVEL_DIRECTORY = os.path.join(
+        os.path.dirname(_RESOLVED_TOP_LEVEL_DIRECTORY),
+        'Resources',
+    )
+    if _RESOLVED_ALTERNATIVE_TOP_LEVEL_DIRECTORY != _ALTERNATIVE_TOP_LEVEL_DIRECTORY:
+        _TOP_LEVEL_DIRECTORY_PATHS.append(_RESOLVED_ALTERNATIVE_TOP_LEVEL_DIRECTORY)
+
+
+# Helper for computing PYZ prefix tree
+def _build_pyz_prefix_tree(pyz_archive):
+    tree = dict()
+    for entry_name, entry_data in pyz_archive.toc.items():
+        name_components = entry_name.split('.')
+        typecode = entry_data[0]
+        current = tree
+        if typecode in {pyimod01_archive.PYZ_ITEM_PKG, pyimod01_archive.PYZ_ITEM_NSPKG}:
+            # Package; create new dictionary node for its modules
+            for name_component in name_components:
+                current = current.setdefault(name_component, {})
+        else:
+            # Module; create the leaf node (empty string)
+            for name_component in name_components[:-1]:
+                current = current.setdefault(name_component, {})
+            current[name_components[-1]] = ''
+    return tree
+
+
+class PyiFrozenFinder:
+    """
+    PyInstaller's frozen path entry finder for specific search path.
+
+    Per-path instances allow us to properly translate the given module name ("fullname") into full PYZ entry name.
+    For example, with search path being `sys._MEIPASS`, the module "mypackage.mod" would translate to "mypackage.mod"
+    in the PYZ archive. However, if search path was `sys._MEIPASS/myotherpackage/_vendored` (for example, if
+    `myotherpacakge` added this path to `sys.path`), then "mypackage.mod" would need to translate to
+    "myotherpackage._vendored.mypackage.mod" in the PYZ archive.
+    """
+    def __repr__(self):
+        return f"{self.__class__.__name__}({self._path})"
+
+    @classmethod
+    def path_hook(cls, path):
+        trace(f"PyInstaller: running path finder hook for path: {path!r}")
+        try:
+            finder = cls(path)
+            trace("PyInstaller: hook succeeded")
+            return finder
+        except Exception as e:
+            trace(f"PyInstaller: hook failed: {e}")
+            raise
+
+    def __init__(self, path):
+        self._path = path  # Store original path, as given.
+        self._pyz_archive = pyz_archive
+
+        # Compute relative path to the top-level application directory. Do not try to resolve the path itself, because
+        # it might contain symbolic links in parts other than the prefix that corresponds to the top-level application
+        # directory. See #8994 for an example (files symlinked from a common directory outside of the top-level
+        # application directory). Instead, try to compute relative path w.r.t. the original and the resolved top-level
+        # application directory.
+        for top_level_path in _TOP_LEVEL_DIRECTORY_PATHS:
+            try:
+                relative_path = os.path.relpath(path, top_level_path)
+            except ValueError:
+                continue  # Failed to compute relative path w.r.t. the given top-level directory path.
+
+            if relative_path.startswith('..'):
+                continue  # Relative path points outside of the given top-level directory.
+
+            break  # Successful match; stop here.
+        else:
+            raise ImportError("Failed to determine relative path w.r.t. top-level application directory.")
+
+        # Ensure that path does not point to a file on filesystem. Strictly speaking, we should be checking that the
+        # given path is a valid directory, but that would need to check both PYZ and filesystem. So for now, limit the
+        # check to catch paths pointing to file, because that breaks `runpy.run_path()`, as per #8767.
+        if os.path.isfile(path):
+            raise ImportError("only directories are supported")
+
+        if relative_path == '.':
+            self._pyz_entry_prefix = ''
+        else:
+            self._pyz_entry_prefix = '.'.join(relative_path.split(os.path.sep))
+
+    def _compute_pyz_entry_name(self, fullname):
+        """
+        Convert module fullname into PYZ entry name, subject to the prefix implied by this finder's search path.
+        """
+        tail_module = fullname.rpartition('.')[2]
+
+        if self._pyz_entry_prefix:
+            return self._pyz_entry_prefix + "." + tail_module
+        else:
+            return tail_module
+
+    @property
+    def fallback_finder(self):
+        """
+        Opportunistically create a *fallback finder* using `sys.path_hooks` entries that are located *after* our hook.
+        The main goal of this exercise is to obtain an instance of python's FileFinder, but in theory any other hook
+        that comes after ours is eligible to be a fallback.
+
+        Having this fallback allows our finder to "cooperate" with python's FileFinder, as if the two were a single
+        finder, which allows us to work around the python's PathFinder permitting only one finder instance per path
+        without subclassing FileFinder.
+        """
+        if hasattr(self, '_fallback_finder'):
+            return self._fallback_finder
+
+        # Try to instantiate fallback finder
+        our_hook_found = False
+
+        self._fallback_finder = None
+        for idx, hook in enumerate(sys.path_hooks):
+            if hook == self.path_hook:
+                our_hook_found = True
+                continue  # Our hook
+
+            if not our_hook_found:
+                continue  # Skip hooks before our hook
+
+            try:
+                self._fallback_finder = hook(self._path)
+                break
+            except ImportError:
+                pass
+
+        return self._fallback_finder
+
+    def _find_fallback_spec(self, fullname, target):
+        """
+        Attempt to find the spec using fallback finder, which is opportunistically created here. Typically, this would
+        be python's FileFinder, which can discover specs for on-filesystem modules, such as extension modules and
+        modules that are collected only as source .py files.
+
+        Having this fallback allows our finder to "cooperate" with python's FileFinder, as if the two were a single
+        finder, which allows us to work around the python's PathFinder permitting only one finder instance per path
+        without subclassing FileFinder.
+        """
+        if not hasattr(self, '_fallback_finder'):
+            self._fallback_finder = self._get_fallback_finder()
+
+        if self._fallback_finder is None:
+            return None
+
+        return self._fallback_finder.find_spec(fullname, target)
+
+    #-- Core PEP451 finder functionality, modeled after importlib.abc.PathEntryFinder
+    # https://docs.python.org/3/library/importlib.html#importlib.abc.PathEntryFinder
+    def invalidate_caches(self):
+        """
+        A method which, when called, should invalidate any internal cache used by the finder. Used by
+        importlib.invalidate_caches() when invalidating the caches of all finders on sys.meta_path.
+
+        https://docs.python.org/3/library/importlib.html#importlib.abc.MetaPathFinder.invalidate_caches
+        """
+        # We do not use any caches, but if we have created a fallback finder, propagate the function call.
+        # NOTE: use getattr() with _fallback_finder attribute, in order to avoid unnecessary creation of the
+        # fallback finder in case when it does not exist yet.
+        fallback_finder = getattr(self, '_fallback_finder', None)
+        if fallback_finder is not None:
+            if hasattr(fallback_finder, 'invalidate_caches'):
+                fallback_finder.invalidate_caches()
+
+    def find_spec(self, fullname, target=None):
+        """
+        A method for finding a spec for the specified module. The finder will search for the module only within the
+        path entry to which it is assigned. If a spec cannot be found, None is returned. When passed in, target is a
+        module object that the finder may use to make a more educated guess about what spec to return.
+
+        https://docs.python.org/3/library/importlib.html#importlib.abc.PathEntryFinder.find_spec
+        """
+        trace(f"{self}: find_spec: called with fullname={fullname!r}, target={fullname!r}")
+
+        # Convert fullname to PYZ entry name.
+        pyz_entry_name = self._compute_pyz_entry_name(fullname)
+
+        # Try looking up the entry in the PYZ archive
+        entry_data = self._pyz_archive.toc.get(pyz_entry_name)
+        if entry_data is None:
+            # Entry not found - try using fallback finder (for example, python's own FileFinder) to resolve on-disk
+            # resources, such as extension modules and modules that are collected only as source .py files.
+            trace(f"{self}: find_spec: {fullname!r} not found in PYZ...")
+
+            if self.fallback_finder is not None:
+                trace(f"{self}: find_spec: attempting resolve using fallback finder {self.fallback_finder!r}.")
+                fallback_spec = self.fallback_finder.find_spec(fullname, target)
+                trace(f"{self}: find_spec: fallback finder returned spec: {fallback_spec!r}.")
+                return fallback_spec
+            else:
+                trace(f"{self}: find_spec: fallback finder is not available.")
+
+            return None
+
+        # Entry found
+        typecode = entry_data[0]
+        trace(f"{self}: find_spec: found {fullname!r} in PYZ as {pyz_entry_name!r}, typecode={typecode}")
+
+        if typecode == pyimod01_archive.PYZ_ITEM_NSPKG:
+            # PEP420 namespace package
+            # We can use regular list for submodule_search_locations; the caller (i.e., python's PathFinder) takes care
+            # of constructing _NamespacePath from it.
+            spec = _frozen_importlib.ModuleSpec(fullname, None)
+            spec.submodule_search_locations = [
+                # NOTE: since we are using sys._MEIPASS as prefix, we need to construct path from resolved PYZ entry
+                # name (equivalently, we could combine `self._path` and last part of `fullname`).
+                os.path.join(sys._MEIPASS, pyz_entry_name.replace('.', os.path.sep)),
+            ]
+            return spec
+
+        is_package = typecode == pyimod01_archive.PYZ_ITEM_PKG
+
+        # Instantiate frozen loader for the module
+        loader = PyiFrozenLoader(
+            name=fullname,
+            pyz_archive=self._pyz_archive,
+            pyz_entry_name=pyz_entry_name,
+            is_package=is_package,
+        )
+
+        # Resolve full filename, as if the module/package was located on filesystem. This is done by the loader.
+        origin = loader.path
+
+        # Construct spec for module, using all collected information.
+        spec = _frozen_importlib.ModuleSpec(
+            fullname,
+            loader,
+            is_package=is_package,
+            origin=origin,
+        )
+
+        # Make the import machinery set __file__.
+        # PEP 451 says: "has_location" is true if the module is locatable. In that case the spec's origin is used
+        # as the location and __file__ is set to spec.origin. If additional location information is required
+        # (e.g., zipimport), that information may be stored in spec.loader_state.
+        spec.has_location = True
+
+        # Set submodule_search_locations for packages. Seems to be required for importlib_resources from 3.2.0;
+        # see issue #5395.
+        if is_package:
+            spec.submodule_search_locations = [os.path.dirname(origin)]
+
+        return spec
+
+    # The following methods are part of legacy PEP302 finder interface. They have been deprecated since python 3.4,
+    # and removed in python 3.12. Provide compatibility shims to accommodate code that might still be using them.
+    if sys.version_info[:2] < (3, 12):
+
+        def find_loader(self, fullname):
+            """
+            A legacy method for finding a loader for the specified module. Returns a 2-tuple of (loader, portion) where
+            portion is a sequence of file system locations contributing to part of a namespace package. The loader may
+            be None while specifying portion to signify the contribution of the file system locations to a namespace
+            package. An empty list can be used for portion to signify the loader is not part of a namespace package. If
+            loader is None and portion is the empty list then no loader or location for a namespace package were found
+            (i.e. failure to find anything for the module).
+
+            Deprecated since python 3.4, removed in 3.12.
+            """
+            # Based on:
+            # https://github.com/python/cpython/blob/v3.11.9/Lib/importlib/_bootstrap_external.py#L1587-L1600
+            spec = self.find_spec(fullname)
+            if spec is None:
+                return None, []
+            return spec.loader, spec.submodule_search_locations or []
+
+        def find_module(self, fullname):
+            """
+            A concrete implementation of Finder.find_module() which is equivalent to self.find_loader(fullname)[0].
+
+            Deprecated since python 3.4, removed in 3.12.
+            """
+            # Based on:
+            # https://github.com/python/cpython/blob/v3.11.9/Lib/importlib/_bootstrap_external.py#L1585
+            # https://github.com/python/cpython/blob/v3.11.9/Lib/importlib/_bootstrap_external.py#L622-L639
+            #
+            loader, portions = self.find_loader(fullname)
+            return loader
+
+
+# Helper for enforcing module name in PyiFrozenLoader methods.
+def _check_name(method):
+    def _check_name_wrapper(self, name, *args, **kwargs):
+        if self.name != name:
+            raise ImportError(f'loader for {self.name} cannot handle {name}', name=name)
+        return method(self, name, *args, **kwargs)
+
+    return _check_name_wrapper
+
+
+class PyiFrozenLoader:
+    """
+    PyInstaller's frozen loader for modules in the PYZ archive, which are discovered by PyiFrozenFinder.
+
+    Since this loader is instantiated only from PyiFrozenFinder and since each loader instance is tied to a specific
+    module, the fact that the loader was instantiated serves as the proof that the module exists in the PYZ archive.
+    Hence, we can avoid any additional validation in the implementation of the loader's methods.
+    """
+    def __init__(self, name, pyz_archive, pyz_entry_name, is_package):
+        # Store the reference to PYZ archive (for code object retrieval), as well as full PYZ entry name
+        # and typecode, all of which are passed from the PyiFrozenFinder.
+        self._pyz_archive = pyz_archive
+        self._pyz_entry_name = pyz_entry_name
+        self._is_package = is_package
+
+        # Compute the module file path, as if module was located on filesystem.
+        #
+        # Rather than returning path to the .pyc file, return the path to .py file - which might actually exist, if it
+        # was explicitly collected into the frozen application). This improves compliance with
+        # https://docs.python.org/3/library/importlib.html#importlib.abc.ExecutionLoader.get_filename
+        # as well as general compatibility with 3rd party code that blindly assumes that module's file path points to
+        # the source .py file.
+        #
+        # NOTE: since we are using sys._MEIPASS as prefix, we need to construct path from full PYZ entry name
+        # (so that a module with `name`=`jaraco.text` and `pyz_entry_name`=`setuptools._vendor.jaraco.text`
+        # ends up with path set to `sys._MEIPASS/setuptools/_vendor/jaraco/text/__init__.pyc` instead of
+        # `sys._MEIPASS/jaraco/text/__init__.pyc`).
+        if is_package:
+            module_file = os.path.join(sys._MEIPASS, pyz_entry_name.replace('.', os.path.sep), '__init__.py')
+        else:
+            module_file = os.path.join(sys._MEIPASS, pyz_entry_name.replace('.', os.path.sep) + '.py')
+
+        # These properties are defined as part of importlib.abc.FileLoader. They are used by our implementation
+        # (e.g., module name validation, get_filename(), get_source(), get_resource_reader()), and might also be used
+        # by 3rd party code that naively expects to be dealing with a FileLoader instance.
+        self.name = name  # The name of the module the loader can handle.
+        self.path = module_file  # Path to the file of the module
+
+    #-- Core PEP451 loader functionality as defined by importlib.abc.Loader
+    # https://docs.python.org/3/library/importlib.html#importlib.abc.Loader
+    def create_module(self, spec):
+        """
+        A method that returns the module object to use when importing a module. This method may return None, indicating
+        that default module creation semantics should take place.
+
+        https://docs.python.org/3/library/importlib.html#importlib.abc.Loader.create_module
+        """
+        return None
+
+    def exec_module(self, module):
+        """
+        A method that executes the module in its own namespace when a module is imported or reloaded. The module
+        should already be initialized when exec_module() is called. When this method exists, create_module()
+        must be defined.
+
+        https://docs.python.org/3/library/importlib.html#importlib.abc.Loader.exec_module
+        """
+        spec = module.__spec__
+        bytecode = self.get_code(spec.name)  # NOTE: get_code verifies that `spec.name` matches `self.name`!
+        if bytecode is None:
+            raise RuntimeError(f"Failed to retrieve bytecode for {spec.name!r}!")
+
+        # Set by the import machinery
+        assert hasattr(module, '__file__')
+
+        # If `submodule_search_locations` is not None, this is a package; set __path__.
+        if spec.submodule_search_locations is not None:
+            module.__path__ = spec.submodule_search_locations
+
+        exec(bytecode, module.__dict__)
+
+    # The following method is part of legacy PEP302 loader interface. It has been deprecated since python 3.4, and
+    # slated for removal in python 3.12, although that has not happened yet. Provide compatibility shim to accommodate
+    # code that might still be using it.
+    if True:
+
+        @_check_name
+        def load_module(self, fullname):
+            """
+            A legacy method for loading a module. If the module cannot be loaded, ImportError is raised, otherwise the
+            loaded module is returned.
+
+            Deprecated since python 3.4, slated for removal in 3.12 (but still present in python's own FileLoader in
+            both v3.12.4 and v3.13.0rc1).
+            """
+            # Based on:
+            # https://github.com/python/cpython/blob/v3.11.9/Lib/importlib/_bootstrap_external.py#L942-L945
+            import importlib._bootstrap as _bootstrap
+            return _bootstrap._load_module_shim(self, fullname)
+
+    #-- PEP302 protocol extensions as defined by importlib.abc.ExecutionLoader
+    # https://docs.python.org/3/library/importlib.html#importlib.abc.ExecutionLoader
+    @_check_name
+    def get_filename(self, fullname):
+        """
+        A method that is to return the value of __file__ for the specified module. If no path is available, ImportError
+        is raised.
+
+        If source code is available, then the method should return the path to the source file, regardless of whether a
+        bytecode was used to load the module.
+
+        https://docs.python.org/3/library/importlib.html#importlib.abc.ExecutionLoader.get_filename
+        """
+        return self.path
+
+    #-- PEP302 protocol extensions as defined by importlib.abc.InspectLoader
+    # https://docs.python.org/3/library/importlib.html#importlib.abc.InspectLoader
+    @_check_name
+    def get_code(self, fullname):
+        """
+        Return the code object for a module, or None if the module does not have a code object (as would be the case,
+        for example, for a built-in module). Raise an ImportError if loader cannot find the requested module.
+
+        https://docs.python.org/3/library/importlib.html#importlib.abc.InspectLoader.get_code
+        """
+        return self._pyz_archive.extract(self._pyz_entry_name)
+
+    @_check_name
+    def get_source(self, fullname):
+        """
+        A method to return the source of a module. It is returned as a text string using universal newlines, translating
+        all recognized line separators into '\n' characters. Returns None if no source is available (e.g. a built-in
+        module). Raises ImportError if the loader cannot find the module specified.
+
+        https://docs.python.org/3/library/importlib.html#importlib.abc.InspectLoader.get_source
+        """
+        # The `path` attribute (which is also returned from `get_filename()`) already points to where the source .py
+        # file should exist, if it is available.
+        filename = self.path
+
+        try:
+            # Read in binary mode, then decode
+            with open(filename, 'rb') as fp:
+                source_bytes = fp.read()
+            return _decode_source(source_bytes)
+        except FileNotFoundError:
+            pass
+
+        # Source code is unavailable.
+        return None
+
+    @_check_name
+    def is_package(self, fullname):
+        """
+        A method to return a true value if the module is a package, a false value otherwise. ImportError is raised if
+        the loader cannot find the module.
+
+        https://docs.python.org/3/library/importlib.html#importlib.abc.InspectLoader.is_package
+        """
+        return self._is_package
+
+    #-- PEP302 protocol extensions as dfined by importlib.abc.ResourceLoader
+    # https://docs.python.org/3/library/importlib.html#importlib.abc.ResourceLoader
+    def get_data(self, path):
+        """
+        A method to return the bytes for the data located at path. Loaders that have a file-like storage back-end that
+        allows storing arbitrary data can implement this abstract method to give direct access to the data stored.
+        OSError is to be raised if the path cannot be found. The path is expected to be constructed using a module’s
+        __file__ attribute or an item from a package’s __path__.
+
+        https://docs.python.org/3/library/importlib.html#importlib.abc.ResourceLoader.get_data
+        """
+        # Try to fetch the data from the filesystem. Since __file__ attribute works properly, just try to open the file
+        # and read it.
+        with open(path, 'rb') as fp:
+            return fp.read()
+
+    #-- Support for `importlib.resources`.
+    @_check_name
+    def get_resource_reader(self, fullname):
+        """
+        Return resource reader compatible with `importlib.resources`.
+        """
+        return PyiFrozenResourceReader(self)
+
+
+class PyiFrozenResourceReader:
+    """
+    Resource reader for importlib.resources / importlib_resources support.
+
+    Supports only on-disk resources, which should cover the typical use cases, i.e., the access to data files;
+    PyInstaller collects data files onto filesystem, and as of v6.0.0, the embedded PYZ archive is guaranteed
+    to contain only .pyc modules.
+
+    When listing resources, source .py files will not be listed as they are not collected by default. Similarly,
+    sub-directories that contained only .py files are not reconstructed on filesystem, so they will not be listed,
+    either. If access to .py files is required for whatever reason, they need to be explicitly collected as data files
+    anyway, which will place them on filesystem and make them appear as resources.
+
+    For on-disk resources, we *must* return path compatible with pathlib.Path() in order to avoid copy to a temporary
+    file, which might break under some circumstances, e.g., metpy with importlib_resources back-port, due to:
+    https://github.com/Unidata/MetPy/blob/a3424de66a44bf3a92b0dcacf4dff82ad7b86712/src/metpy/plots/wx_symbols.py#L24-L25
+    (importlib_resources tries to use 'fonts/wx_symbols.ttf' as a temporary filename suffix, which fails as it contains
+    a separator).
+
+    Furthermore, some packages expect files() to return either pathlib.Path or zipfile.Path, e.g.,
+    https://github.com/tensorflow/datasets/blob/master/tensorflow_datasets/core/utils/resource_utils.py#L81-L97
+    This makes implementation of mixed support for on-disk and embedded resources using importlib.abc.Traversable
+    protocol rather difficult.
+
+    So in order to maximize compatibility with unfrozen behavior, the below implementation is basically equivalent of
+    importlib.readers.FileReader from python 3.10:
+      https://github.com/python/cpython/blob/839d7893943782ee803536a47f1d4de160314f85/Lib/importlib/readers.py#L11
+    and its underlying classes, importlib.abc.TraversableResources and importlib.abc.ResourceReader:
+      https://github.com/python/cpython/blob/839d7893943782ee803536a47f1d4de160314f85/Lib/importlib/abc.py#L422
+      https://github.com/python/cpython/blob/839d7893943782ee803536a47f1d4de160314f85/Lib/importlib/abc.py#L312
+    """
+    def __init__(self, loader):
+        # Local import to avoid including `pathlib` and its dependencies in `base_library.zip`
+        import pathlib
+        # This covers both modules and (regular) packages. Note that PEP-420 namespace packages are not handled by this
+        # resource reader (since they are not handled by PyiFrozenLoader, which uses this reader).
+        self.path = pathlib.Path(loader.path).parent
+
+    def open_resource(self, resource):
+        return self.files().joinpath(resource).open('rb')
+
+    def resource_path(self, resource):
+        return str(self.path.joinpath(resource))
+
+    def is_resource(self, path):
+        return self.files().joinpath(path).is_file()
+
+    def contents(self):
+        return (item.name for item in self.files().iterdir())
+
+    def files(self):
+        return self.path
+
+
+class PyiFrozenEntryPointLoader:
+    """
+    A special loader that enables retrieval of the code-object for the __main__ module.
+    """
+    def __repr__(self):
+        return self.__class__.__name__
+
+    def get_code(self, fullname):
+        if fullname == '__main__':
+            # Special handling for __main__ module; the bootloader should store code object to _pyi_main_co
+            # attribute of the module.
+            return sys.modules['__main__']._pyi_main_co
+
+        raise ImportError(f'{self} cannot handle module {fullname!r}')
+
+
+def install():
+    """
+    Install PyInstaller's frozen finders/loaders/importers into python's import machinery.
+    """
+    # Setup PYZ archive reader.
+    #
+    # The bootloader should store the path to PYZ archive (the path to the PKG archive and the offset within it; for
+    # executable-embedded archive, this is for example /path/executable_name?117568) into _pyinstaller_pyz
+    # attribute of the sys module.
+    global pyz_archive
+
+    if not hasattr(sys, '_pyinstaller_pyz'):
+        raise RuntimeError("Bootloader did not set sys._pyinstaller_pyz!")
+
+    try:
+        pyz_archive = pyimod01_archive.ZlibArchiveReader(sys._pyinstaller_pyz, check_pymagic=True)
+    except Exception as e:
+        raise RuntimeError("Failed to setup PYZ archive reader!") from e
+
+    delattr(sys, '_pyinstaller_pyz')
+
+    # On Windows, there is finder called `_frozen_importlib.WindowsRegistryFinder`, which looks for Python module
+    # locations in Windows registry. The frozen application should not look for those, so remove this finder
+    # from `sys.meta_path`.
+    for entry in sys.meta_path:
+        if getattr(entry, '__name__', None) == 'WindowsRegistryFinder':
+            sys.meta_path.remove(entry)
+            break
+
+    # Insert our hook for `PyiFrozenFinder` into `sys.path_hooks`. Place it after `zipimporter`, if available.
+    for idx, entry in enumerate(sys.path_hooks):
+        if getattr(entry, '__name__', None) == 'zipimporter':
+            trace(f"PyInstaller: inserting our finder hook at index {idx + 1} in sys.path_hooks.")
+            sys.path_hooks.insert(idx + 1, PyiFrozenFinder.path_hook)
+            break
+    else:
+        trace("PyInstaller: zipimporter hook not found in sys.path_hooks! Prepending our finder hook to the list.")
+        sys.path_hooks.insert(0, PyiFrozenFinder.path_hook)
+
+    # Monkey-patch `zipimporter.get_source` to allow loading out-of-zip source .py files for modules that are
+    # in `base_library.zip`.
+    _patch_zipimporter_get_source()
+
+    # Python might have already created a `FileFinder` for `sys._MEIPASS`. Remove the entry from path importer cache,
+    # so that next loading attempt creates `PyiFrozenFinder` instead. This could probably be avoided altogether if
+    # we refrained from adding `sys._MEIPASS` to `sys.path` until our importer hooks is in place.
+    sys.path_importer_cache.pop(sys._MEIPASS, None)
+
+    # Set the PyiFrozenEntryPointLoader as loader for __main__, in order for python to treat __main__ as a module
+    # instead of a built-in, and to allow its code object to be retrieved.
+    try:
+        sys.modules['__main__'].__loader__ = PyiFrozenEntryPointLoader()
+    except Exception:
+        pass
+
+    # Apply hack for python >= 3.11 and its frozen stdlib modules.
+    if sys.version_info >= (3, 11):
+        _fixup_frozen_stdlib()
+
+
+# A hack for python >= 3.11 and its frozen stdlib modules. Unless `sys._stdlib_dir` is set, these modules end up
+# missing __file__ attribute, which causes problems with 3rd party code. At the time of writing, python interpreter
+# configuration API does not allow us to influence `sys._stdlib_dir` - it always resets it to `None`. Therefore,
+# we manually set the path, and fix __file__ attribute on modules.
+def _fixup_frozen_stdlib():
+    import _imp  # built-in
+
+    # If sys._stdlib_dir is None or empty, override it with sys._MEIPASS
+    if not sys._stdlib_dir:
+        try:
+            sys._stdlib_dir = sys._MEIPASS
+        except AttributeError:
+            pass
+
+    # The sys._stdlib_dir set above should affect newly-imported python-frozen modules. However, most of them have
+    # been already imported during python initialization and our bootstrap, so we need to retroactively fix their
+    # __file__ attribute.
+    for module_name, module in sys.modules.items():
+        if not _imp.is_frozen(module_name):
+            continue
+
+        is_pkg = _imp.is_frozen_package(module_name)
+
+        # Determine "real" name from __spec__.loader_state.
+        loader_state = module.__spec__.loader_state
+
+        orig_name = loader_state.origname
+        if is_pkg:
+            orig_name += '.__init__'
+
+        # We set suffix to .pyc to be consistent with our PyiFrozenLoader.
+        filename = os.path.join(sys._MEIPASS, *orig_name.split('.')) + '.pyc'
+
+        # Fixup the __file__ attribute
+        if not hasattr(module, '__file__'):
+            try:
+                module.__file__ = filename
+            except AttributeError:
+                pass
+
+        # Fixup the loader_state.filename
+        # Except for _frozen_importlib (importlib._bootstrap), whose loader_state.filename appears to be left at
+        # None in python.
+        if loader_state.filename is None and orig_name != 'importlib._bootstrap':
+            loader_state.filename = filename
+
+
+# Monkey-patch the `get_source` implementation of python's `zipimport.zipimporter` with our custom implementation that
+# looks up for source files in top-level application directory instead of within the zip file. This allows us to collect
+# source .py files for modules that are collected in the `base_library.zip` in the same way as for modules in the PYZ
+# archive.
+def _patch_zipimporter_get_source():
+    import zipimport
+
+    _orig_get_source = zipimport.zipimporter.get_source
+
+    def _get_source(self, fullname):
+        # Call original implementation first, in case we are dealing with a zip file other than `base_library.zip` (or
+        # if the source .py file is actually in there, for whatever reason). This also implicitly validates the module
+        # name, as it raises exception if module does not exist and returns None if module exists but the source code
+        # is not present in the archive.
+        source = _orig_get_source(self, fullname)
+        if source is not None:
+            return source
+
+        # Our override should apply only to `base_library.zip`.
+        if os.path.basename(self.archive) != 'base_library.zip':
+            return None
+
+        # Translate module/package name into .py filename in the top-level application directory.
+        if self.is_package(fullname):
+            filename = os.path.join(*fullname.split('.'), '__init__.py')
+        else:
+            filename = os.path.join(*fullname.split('.')) + '.py'
+        filename = os.path.join(_RESOLVED_TOP_LEVEL_DIRECTORY, filename)
+
+        try:
+            # Read in binary mode, then decode
+            with open(filename, 'rb') as fp:
+                source_bytes = fp.read()
+            return _decode_source(source_bytes)
+        except FileNotFoundError:
+            pass
+
+        # Source code is unavailable.
+        return None
+
+    zipimport.zipimporter.get_source = _get_source

Utils/PythonNew32/Lib/site-packages/PyInstaller/loader/pyimod03_ctypes.py

@@ -0,0 +1,131 @@
+#-----------------------------------------------------------------------------
+# Copyright (c) 2005-2023, PyInstaller Development Team.
+#
+# Distributed under the terms of the GNU General Public License with exception
+# for distributing bootloader.
+#
+# The full license is in the file COPYING.txt, distributed with this software.
+#-----------------------------------------------------------------------------
+"""
+Hooks to make ctypes.CDLL, .PyDLL, etc. look in sys._MEIPASS first.
+"""
+
+import sys
+
+
+def install():
+    """
+    Install the hooks.
+
+    This must be done from a function as opposed to at module-level, because when the module is imported/executed,
+    the import machinery is not completely set up yet.
+    """
+
+    import os
+
+    try:
+        import ctypes
+    except ImportError:
+        # ctypes is not included in the frozen application
+        return
+
+    def _frozen_name(name):
+        # If the given (file)name does not exist, fall back to searching for its basename in sys._MEIPASS, where
+        # PyInstaller usually collects shared libraries.
+        if name and not os.path.isfile(name):
+            frozen_name = os.path.join(sys._MEIPASS, os.path.basename(name))
+            if os.path.isfile(frozen_name):
+                name = frozen_name
+        return name
+
+    class PyInstallerImportError(OSError):
+        def __init__(self, name):
+            self.msg = (
+                "Failed to load dynlib/dll %r. Most likely this dynlib/dll was not found when the application "
+                "was frozen." % name
+            )
+            self.args = (self.msg,)
+
+    class PyInstallerCDLL(ctypes.CDLL):
+        def __init__(self, name, *args, **kwargs):
+            name = _frozen_name(name)
+            try:
+                super().__init__(name, *args, **kwargs)
+            except Exception as base_error:
+                raise PyInstallerImportError(name) from base_error
+
+    ctypes.CDLL = PyInstallerCDLL
+    ctypes.cdll = ctypes.LibraryLoader(PyInstallerCDLL)
+
+    class PyInstallerPyDLL(ctypes.PyDLL):
+        def __init__(self, name, *args, **kwargs):
+            name = _frozen_name(name)
+            try:
+                super().__init__(name, *args, **kwargs)
+            except Exception as base_error:
+                raise PyInstallerImportError(name) from base_error
+
+    ctypes.PyDLL = PyInstallerPyDLL
+    ctypes.pydll = ctypes.LibraryLoader(PyInstallerPyDLL)
+
+    if sys.platform.startswith('win'):
+
+        class PyInstallerWinDLL(ctypes.WinDLL):
+            def __init__(self, name, *args, **kwargs):
+                name = _frozen_name(name)
+                try:
+                    super().__init__(name, *args, **kwargs)
+                except Exception as base_error:
+                    raise PyInstallerImportError(name) from base_error
+
+        ctypes.WinDLL = PyInstallerWinDLL
+        ctypes.windll = ctypes.LibraryLoader(PyInstallerWinDLL)
+
+        class PyInstallerOleDLL(ctypes.OleDLL):
+            def __init__(self, name, *args, **kwargs):
+                name = _frozen_name(name)
+                try:
+                    super().__init__(name, *args, **kwargs)
+                except Exception as base_error:
+                    raise PyInstallerImportError(name) from base_error
+
+        ctypes.OleDLL = PyInstallerOleDLL
+        ctypes.oledll = ctypes.LibraryLoader(PyInstallerOleDLL)
+
+        try:
+            import ctypes.util
+        except ImportError:
+            # ctypes.util is not included in the frozen application
+            return
+
+        # Same implementation as ctypes.util.find_library, except it prepends sys._MEIPASS to the search directories.
+        def pyinstaller_find_library(name):
+            if name in ('c', 'm'):
+                return ctypes.util.find_msvcrt()
+            # See MSDN for the REAL search order.
+            search_dirs = [sys._MEIPASS] + os.environ['PATH'].split(os.pathsep)
+            for directory in search_dirs:
+                fname = os.path.join(directory, name)
+                if os.path.isfile(fname):
+                    return fname
+                if fname.lower().endswith(".dll"):
+                    continue
+                fname = fname + ".dll"
+                if os.path.isfile(fname):
+                    return fname
+            return None
+
+        ctypes.util.find_library = pyinstaller_find_library
+
+
+# On macOS insert sys._MEIPASS in the first position of the list of paths that ctypes uses to search for libraries.
+#
+# Note: 'ctypes' module will NOT be bundled with every app because code in this module is not scanned for module
+#       dependencies. It is safe to wrap 'ctypes' module into 'try/except ImportError' block.
+if sys.platform.startswith('darwin'):
+    try:
+        from ctypes.macholib import dyld
+        dyld.DEFAULT_LIBRARY_FALLBACK.insert(0, sys._MEIPASS)
+    except ImportError:
+        # Do nothing when module 'ctypes' is not available.
+        pass

Utils/PythonNew32/Lib/site-packages/PyInstaller/loader/pyimod04_pywin32.py

@@ -0,0 +1,56 @@
+#-----------------------------------------------------------------------------
+# Copyright (c) 2005-2023, PyInstaller Development Team.
+#
+# Distributed under the terms of the GNU General Public License with exception
+# for distributing bootloader.
+#
+# The full license is in the file COPYING.txt, distributed with this software.
+#-----------------------------------------------------------------------------
+"""
+Set search path for pywin32 DLLs. Due to the large number of pywin32 modules, we use a single loader-level script
+instead of per-module runtime hook scripts.
+"""
+
+import os
+import sys
+
+
+def install():
+    # Sub-directories containing extensions. In original python environment, these are added to `sys.path` by the
+    # `pywin32.pth` so the extensions end up treated as top-level modules. We attempt to preserve the directory
+    # layout, so we need to add these directories to `sys.path` ourselves.
+    pywin32_ext_paths = ('win32', 'pythonwin')
+    pywin32_ext_paths = [os.path.join(sys._MEIPASS, pywin32_ext_path) for pywin32_ext_path in pywin32_ext_paths]
+    pywin32_ext_paths = [path for path in pywin32_ext_paths if os.path.isdir(path)]
+    sys.path.extend(pywin32_ext_paths)
+
+    # Additional handling of `pywin32_system32` DLL directory
+    pywin32_system32_path = os.path.join(sys._MEIPASS, 'pywin32_system32')
+
+    if not os.path.isdir(pywin32_system32_path):
+        # Either pywin32 is not collected, or we are dealing with version that does not use the pywin32_system32
+        # sub-directory. In the latter case, the pywin32 DLLs should be in `sys._MEIPASS`, and nothing
+        # else needs to be done here.
+        return
+
+    # Add the DLL directory to `sys.path`.
+    # This is necessary because `__import_pywin32_system_module__` from `pywintypes` module assumes that in a frozen
+    # application, the pywin32 DLLs (`pythoncom3X.dll` and `pywintypes3X.dll`) that are normally found in
+    # `pywin32_system32` sub-directory in `sys.path` (site-packages, really) are located directly in `sys.path`.
+    # This obviously runs afoul of our attempts at preserving the directory layout and placing them in the
+    # `pywin32_system32` sub-directory instead of the top-level application directory.
+    sys.path.append(pywin32_system32_path)
+
+    # Add the DLL directory to DLL search path using os.add_dll_directory().
+    # This allows extensions from win32 directory (e.g., win32api, win32crypt) to be loaded on their own without
+    # importing pywintypes first. The extensions are linked against pywintypes3X.dll.
+    os.add_dll_directory(pywin32_system32_path)
+
+    # Add the DLL directory to PATH. This is necessary under certain versions of
+    # Anaconda python, where `os.add_dll_directory` does not work.
+    path = os.environ.get('PATH', None)
+    if not path:
+        path = pywin32_system32_path
+    else:
+        path = pywin32_system32_path + os.pathsep + path
+    os.environ['PATH'] = path