--- a/env/lib/python3.7/site-packages/distlib/resources.py	Thu May 14 16:47:39 2020 -0400
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,355 +0,0 @@
-# -*- coding: utf-8 -*-
-#
-# Copyright (C) 2013-2017 Vinay Sajip.
-# Licensed to the Python Software Foundation under a contributor agreement.
-# See LICENSE.txt and CONTRIBUTORS.txt.
-#
-from __future__ import unicode_literals
-
-import bisect
-import io
-import logging
-import os
-import pkgutil
-import shutil
-import sys
-import types
-import zipimport
-
-from . import DistlibException
-from .util import cached_property, get_cache_base, path_to_cache_dir, Cache
-
-logger = logging.getLogger(__name__)
-
-
-cache = None    # created when needed
-
-
-class ResourceCache(Cache):
-    def __init__(self, base=None):
-        if base is None:
-            # Use native string to avoid issues on 2.x: see Python #20140.
-            base = os.path.join(get_cache_base(), str('resource-cache'))
-        super(ResourceCache, self).__init__(base)
-
-    def is_stale(self, resource, path):
-        """
-        Is the cache stale for the given resource?
-
-        :param resource: The :class:`Resource` being cached.
-        :param path: The path of the resource in the cache.
-        :return: True if the cache is stale.
-        """
-        # Cache invalidation is a hard problem :-)
-        return True
-
-    def get(self, resource):
-        """
-        Get a resource into the cache,
-
-        :param resource: A :class:`Resource` instance.
-        :return: The pathname of the resource in the cache.
-        """
-        prefix, path = resource.finder.get_cache_info(resource)
-        if prefix is None:
-            result = path
-        else:
-            result = os.path.join(self.base, self.prefix_to_dir(prefix), path)
-            dirname = os.path.dirname(result)
-            if not os.path.isdir(dirname):
-                os.makedirs(dirname)
-            if not os.path.exists(result):
-                stale = True
-            else:
-                stale = self.is_stale(resource, path)
-            if stale:
-                # write the bytes of the resource to the cache location
-                with open(result, 'wb') as f:
-                    f.write(resource.bytes)
-        return result
-
-
-class ResourceBase(object):
-    def __init__(self, finder, name):
-        self.finder = finder
-        self.name = name
-
-
-class Resource(ResourceBase):
-    """
-    A class representing an in-package resource, such as a data file. This is
-    not normally instantiated by user code, but rather by a
-    :class:`ResourceFinder` which manages the resource.
-    """
-    is_container = False        # Backwards compatibility
-
-    def as_stream(self):
-        """
-        Get the resource as a stream.
-
-        This is not a property to make it obvious that it returns a new stream
-        each time.
-        """
-        return self.finder.get_stream(self)
-
-    @cached_property
-    def file_path(self):
-        global cache
-        if cache is None:
-            cache = ResourceCache()
-        return cache.get(self)
-
-    @cached_property
-    def bytes(self):
-        return self.finder.get_bytes(self)
-
-    @cached_property
-    def size(self):
-        return self.finder.get_size(self)
-
-
-class ResourceContainer(ResourceBase):
-    is_container = True     # Backwards compatibility
-
-    @cached_property
-    def resources(self):
-        return self.finder.get_resources(self)
-
-
-class ResourceFinder(object):
-    """
-    Resource finder for file system resources.
-    """
-
-    if sys.platform.startswith('java'):
-        skipped_extensions = ('.pyc', '.pyo', '.class')
-    else:
-        skipped_extensions = ('.pyc', '.pyo')
-
-    def __init__(self, module):
-        self.module = module
-        self.loader = getattr(module, '__loader__', None)
-        self.base = os.path.dirname(getattr(module, '__file__', ''))
-
-    def _adjust_path(self, path):
-        return os.path.realpath(path)
-
-    def _make_path(self, resource_name):
-        # Issue #50: need to preserve type of path on Python 2.x
-        # like os.path._get_sep
-        if isinstance(resource_name, bytes):    # should only happen on 2.x
-            sep = b'/'
-        else:
-            sep = '/'
-        parts = resource_name.split(sep)
-        parts.insert(0, self.base)
-        result = os.path.join(*parts)
-        return self._adjust_path(result)
-
-    def _find(self, path):
-        return os.path.exists(path)
-
-    def get_cache_info(self, resource):
-        return None, resource.path
-
-    def find(self, resource_name):
-        path = self._make_path(resource_name)
-        if not self._find(path):
-            result = None
-        else:
-            if self._is_directory(path):
-                result = ResourceContainer(self, resource_name)
-            else:
-                result = Resource(self, resource_name)
-            result.path = path
-        return result
-
-    def get_stream(self, resource):
-        return open(resource.path, 'rb')
-
-    def get_bytes(self, resource):
-        with open(resource.path, 'rb') as f:
-            return f.read()
-
-    def get_size(self, resource):
-        return os.path.getsize(resource.path)
-
-    def get_resources(self, resource):
-        def allowed(f):
-            return (f != '__pycache__' and not
-                    f.endswith(self.skipped_extensions))
-        return set([f for f in os.listdir(resource.path) if allowed(f)])
-
-    def is_container(self, resource):
-        return self._is_directory(resource.path)
-
-    _is_directory = staticmethod(os.path.isdir)
-
-    def iterator(self, resource_name):
-        resource = self.find(resource_name)
-        if resource is not None:
-            todo = [resource]
-            while todo:
-                resource = todo.pop(0)
-                yield resource
-                if resource.is_container:
-                    rname = resource.name
-                    for name in resource.resources:
-                        if not rname:
-                            new_name = name
-                        else:
-                            new_name = '/'.join([rname, name])
-                        child = self.find(new_name)
-                        if child.is_container:
-                            todo.append(child)
-                        else:
-                            yield child
-
-
-class ZipResourceFinder(ResourceFinder):
-    """
-    Resource finder for resources in .zip files.
-    """
-    def __init__(self, module):
-        super(ZipResourceFinder, self).__init__(module)
-        archive = self.loader.archive
-        self.prefix_len = 1 + len(archive)
-        # PyPy doesn't have a _files attr on zipimporter, and you can't set one
-        if hasattr(self.loader, '_files'):
-            self._files = self.loader._files
-        else:
-            self._files = zipimport._zip_directory_cache[archive]
-        self.index = sorted(self._files)
-
-    def _adjust_path(self, path):
-        return path
-
-    def _find(self, path):
-        path = path[self.prefix_len:]
-        if path in self._files:
-            result = True
-        else:
-            if path and path[-1] != os.sep:
-                path = path + os.sep
-            i = bisect.bisect(self.index, path)
-            try:
-                result = self.index[i].startswith(path)
-            except IndexError:
-                result = False
-        if not result:
-            logger.debug('_find failed: %r %r', path, self.loader.prefix)
-        else:
-            logger.debug('_find worked: %r %r', path, self.loader.prefix)
-        return result
-
-    def get_cache_info(self, resource):
-        prefix = self.loader.archive
-        path = resource.path[1 + len(prefix):]
-        return prefix, path
-
-    def get_bytes(self, resource):
-        return self.loader.get_data(resource.path)
-
-    def get_stream(self, resource):
-        return io.BytesIO(self.get_bytes(resource))
-
-    def get_size(self, resource):
-        path = resource.path[self.prefix_len:]
-        return self._files[path][3]
-
-    def get_resources(self, resource):
-        path = resource.path[self.prefix_len:]
-        if path and path[-1] != os.sep:
-            path += os.sep
-        plen = len(path)
-        result = set()
-        i = bisect.bisect(self.index, path)
-        while i < len(self.index):
-            if not self.index[i].startswith(path):
-                break
-            s = self.index[i][plen:]
-            result.add(s.split(os.sep, 1)[0])   # only immediate children
-            i += 1
-        return result
-
-    def _is_directory(self, path):
-        path = path[self.prefix_len:]
-        if path and path[-1] != os.sep:
-            path += os.sep
-        i = bisect.bisect(self.index, path)
-        try:
-            result = self.index[i].startswith(path)
-        except IndexError:
-            result = False
-        return result
-
-_finder_registry = {
-    type(None): ResourceFinder,
-    zipimport.zipimporter: ZipResourceFinder
-}
-
-try:
-    # In Python 3.6, _frozen_importlib -> _frozen_importlib_external
-    try:
-        import _frozen_importlib_external as _fi
-    except ImportError:
-        import _frozen_importlib as _fi
-    _finder_registry[_fi.SourceFileLoader] = ResourceFinder
-    _finder_registry[_fi.FileFinder] = ResourceFinder
-    del _fi
-except (ImportError, AttributeError):
-    pass
-
-
-def register_finder(loader, finder_maker):
-    _finder_registry[type(loader)] = finder_maker
-
-_finder_cache = {}
-
-
-def finder(package):
-    """
-    Return a resource finder for a package.
-    :param package: The name of the package.
-    :return: A :class:`ResourceFinder` instance for the package.
-    """
-    if package in _finder_cache:
-        result = _finder_cache[package]
-    else:
-        if package not in sys.modules:
-            __import__(package)
-        module = sys.modules[package]
-        path = getattr(module, '__path__', None)
-        if path is None:
-            raise DistlibException('You cannot get a finder for a module, '
-                                   'only for a package')
-        loader = getattr(module, '__loader__', None)
-        finder_maker = _finder_registry.get(type(loader))
-        if finder_maker is None:
-            raise DistlibException('Unable to locate finder for %r' % package)
-        result = finder_maker(module)
-        _finder_cache[package] = result
-    return result
-
-
-_dummy_module = types.ModuleType(str('__dummy__'))
-
-
-def finder_for_path(path):
-    """
-    Return a resource finder for a path, which should represent a container.
-
-    :param path: The path.
-    :return: A :class:`ResourceFinder` instance for the path.
-    """
-    result = None
-    # calls any path hooks, gets importer into cache
-    pkgutil.get_importer(path)
-    loader = sys.path_importer_cache.get(path)
-    finder = _finder_registry.get(type(loader))
-    if finder:
-        module = _dummy_module
-        module.__file__ = os.path.join(path, '')
-        module.__loader__ = loader
-        result = finder(module)
-    return result