Strip out vendored packages and require them instead. Ref #581.

1 files changed, 0 insertions, 73 deletions

diff --git a/pkg_resources/extern/__init__.py b/pkg_resources/extern/__init__.py
deleted file mode 100644
index b4156fec..00000000
--- a/pkg_resources/extern/__init__.py
+++ /dev/null
@@ -1,73 +0,0 @@
-import sys
-
-
-class VendorImporter:
-    """
-    A PEP 302 meta path importer for finding optionally-vendored
-    or otherwise naturally-installed packages from root_name.
-    """
-
-    def __init__(self, root_name, vendored_names=(), vendor_pkg=None):
-        self.root_name = root_name
-        self.vendored_names = set(vendored_names)
-        self.vendor_pkg = vendor_pkg or root_name.replace('extern', '_vendor')
-
-    @property
-    def search_path(self):
-        """
-        Search first the vendor package then as a natural package.
-        """
-        yield self.vendor_pkg + '.'
-        yield ''
-
-    def find_module(self, fullname, path=None):
-        """
-        Return self when fullname starts with root_name and the
-        target module is one vendored through this importer.
-        """
-        root, base, target = fullname.partition(self.root_name + '.')
-        if root:
-            return
-        if not any(map(target.startswith, self.vendored_names)):
-            return
-        return self
-
-    def load_module(self, fullname):
-        """
-        Iterate over the search path to locate and load fullname.
-        """
-        root, base, target = fullname.partition(self.root_name + '.')
-        for prefix in self.search_path:
-            try:
-                extant = prefix + target
-                __import__(extant)
-                mod = sys.modules[extant]
-                sys.modules[fullname] = mod
-                # mysterious hack:
-                # Remove the reference to the extant package/module
-                # on later Python versions to cause relative imports
-                # in the vendor package to resolve the same modules
-                # as those going through this importer.
-                if sys.version_info > (3, 3):
-                    del sys.modules[extant]
-                return mod
-            except ImportError:
-                pass
-        else:
-            raise ImportError(
-                "The '{target}' package is required; "
-                "normally this is bundled with this package so if you get "
-                "this warning, consult the packager of your "
-                "distribution.".format(**locals())
-            )
-
-    def install(self):
-        """
-        Install this importer into sys.meta_path if not already present.
-        """
-        if self not in sys.meta_path:
-            sys.meta_path.append(self)
-
-
-names = 'packaging', 'pyparsing', 'six', 'appdirs'
-VendorImporter(__name__, names).install()