From 55830ec1900d48adce1f6b02a3418b16affd0c42 Mon Sep 17 00:00:00 2001
From: Tim Abbott <tabbott@dropbox.com>
Date: Mon, 25 Jan 2016 16:43:48 -0800
Subject: [PATCH] Fix type for py2 traceback.format_exc and add to python 3.

---
 stdlib/2.7/traceback.pyi | 2 +-
 stdlib/3/traceback.pyi   | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/stdlib/2.7/traceback.pyi b/stdlib/2.7/traceback.pyi
index fab65f5db..c00e8fbb3 100644
--- a/stdlib/2.7/traceback.pyi
+++ b/stdlib/2.7/traceback.pyi
@@ -4,7 +4,7 @@ from types import TracebackType, FrameType
 def print_tb(traceback: TracebackType, limit: int = ..., file: IO[str] = ...) -> None: ...
 def print_exception(type: type, value: Exception, limit: int = ..., file: IO[str] = ...) -> None: ...
 def print_exc(limit: int = ..., file: IO[str] = ...) -> None: ...
-def format_exc(limit: int = ...) -> None: ...
+def format_exc(limit: int = ...) -> str: ...
 def print_last(limit: int = ..., file: IO[str] = ...) -> None: ...
 def print_stack(f: FrameType, limit: int = ..., file: IO[AnyStr] = ...) -> None: ...
 def extract_tb(f: TracebackType, limit: int = ...) -> List[Tuple[str, int, str, str]]: ...
diff --git a/stdlib/3/traceback.pyi b/stdlib/3/traceback.pyi
index a5953568d..7fca4aa65 100644
--- a/stdlib/3/traceback.pyi
+++ b/stdlib/3/traceback.pyi
@@ -6,6 +6,7 @@ import typing
 def format_exception_only(etype, value): ...
 def format_tb(traceback): ...
 def print_exc(limit=..., file=..., chain=...): ...
+def format_exc(limit: int, chain: bool = ...) -> str: ...
 def extract_stack(f=..., limit=...): ...
 def extract_tb(traceback, limit=...): ...
 def format_list(list): ...