1 files changed, 84 insertions, 0 deletions
diff --git a/lib/spack/external/py2/typing.py b/lib/spack/external/py2/typing.py
new file mode 100644
index 0000000000..2b06797660
--- /dev/null
+++ b/lib/spack/external/py2/typing.py
@@ -0,0 +1,84 @@
+# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+"""
+This is a fake set of symbols to allow spack to import typing in python
+versions where we do not support type checking (<3)
+"""
+Annotated = None
+Any = None
+Callable = None
+ForwardRef = None
+Generic = None
+Literal = None
+Optional = None
+Tuple = None
+TypeVar = None
+Union = None
+AbstractSet = None
+ByteString = None
+Container = None
+Hashable = None
+ItemsView = None
+Iterable = None
+Iterator = None
+KeysView = None
+Mapping = None
+MappingView = None
+MutableMapping = None
+MutableSequence = None
+MutableSet = None
+Sequence = None
+Sized = None
+ValuesView = None
+Awaitable = None
+AsyncIterator = None
+AsyncIterable = None
+Coroutine = None
+Collection = None
+AsyncGenerator = None
+AsyncContextManager = None
+Reversible = None
+SupportsAbs = None
+SupportsBytes = None
+SupportsComplex = None
+SupportsFloat = None
+SupportsInt = None
+SupportsRound = None
+ChainMap = None
+Dict = None
+List = None
+OrderedDict = None
+Set = None
+FrozenSet = None
+NamedTuple = None
+Generator = None
+AnyStr = None
+cast = None
+get_args = None
+get_origin = None
+get_type_hints = None
+no_type_check = None
+no_type_check_decorator = None
+NoReturn = None
+
+# these are the typing extension symbols
+ClassVar = None
+Final = None
+Protocol = None
+Type = None
+TypedDict = None
+ContextManager = None
+Counter = None
+Deque = None
+DefaultDict = None
+SupportsIndex = None
+final = None
+IntVar = None
+Literal = None
+NewType = None
+overload = None
+runtime_checkable = None
+Text = None
+TYPE_CHECKING = None