Check in `future` package

I hit some issues installing Whisper and had to embed this package.
I haven't taken the time to deeply understand what's going on. I think
that embedded Python follows different rules about resolving module
paths than regular system Python.

Basically, `future`'s setup.py has a line like `import src`, where
`src` is a module inside future (like `future/src/__init__.py`). This
doesn't work unless we put that directory on the search path.

1 files changed, 52 insertions, 0 deletions

diff --git a/Python/Dependencies/future-0.18.2/src/future/builtins/iterators.py b/Python/Dependencies/future-0.18.2/src/future/builtins/iterators.py
new file mode 100644
index 0000000..dff651e
--- /dev/null
+++ b/Python/Dependencies/future-0.18.2/src/future/builtins/iterators.py
@@ -0,0 +1,52 @@
+"""
+This module is designed to be used as follows::
+
+    from future.builtins.iterators import *
+
+And then, for example::
+
+    for i in range(10**15):
+        pass
+
+    for (a, b) in zip(range(10**15), range(-10**15, 0)):
+        pass
+
+Note that this is standard Python 3 code, plus some imports that do
+nothing on Python 3.
+
+The iterators this brings in are::
+
+- ``range``
+- ``filter``
+- ``map``
+- ``zip``
+
+On Python 2, ``range`` is a pure-Python backport of Python 3's ``range``
+iterator with slicing support. The other iterators (``filter``, ``map``,
+``zip``) are from the ``itertools`` module on Python 2. On Python 3 these
+are available in the module namespace but not exported for * imports via
+__all__ (zero no namespace pollution).
+
+Note that these are also available in the standard library
+``future_builtins`` module on Python 2 -- but not Python 3, so using
+the standard library version is not portable, nor anywhere near complete.
+"""
+
+from __future__ import division, absolute_import, print_function
+
+import itertools
+from future import utils
+
+if not utils.PY3:
+    filter = itertools.ifilter
+    map = itertools.imap
+    from future.types import newrange as range
+    zip = itertools.izip
+    __all__ = ['filter', 'map', 'range', 'zip']
+else:
+    import builtins
+    filter = builtins.filter
+    map = builtins.map
+    range = builtins.range
+    zip = builtins.zip
+    __all__ = []