From a25ff0bddf4f1546bdb2e0ca54566fcedba0707e Mon Sep 17 00:00:00 2001
From: Stephen Thorne <stephen@thorne.id.au>
Date: Fri, 1 Jun 2018 17:59:57 +0100
Subject: [PATCH] get_grouped_opcodes() returns an iterable of groups, not an
 iterable of opcodes. (#2183)

The type signature of get_grouped_opcodes() was incorrect. Resulting in type errors when checking return values.

The usage of this function is like this:
groups = sm.get_grouped_opcodes() # groups is Iterable[List[Tuple[str, int, int, int, int]]]
for group in groups:  #  group is List[Tuple[str, int, int, int, int]]
  for opcode in group:  # opcode is Tuple[str, int, int, int, int]
---
 stdlib/2and3/difflib.pyi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stdlib/2and3/difflib.pyi b/stdlib/2and3/difflib.pyi
index a2c3955b4..f948fe5f0 100644
--- a/stdlib/2and3/difflib.pyi
+++ b/stdlib/2and3/difflib.pyi
@@ -34,7 +34,7 @@ class SequenceMatcher(Generic[_T]):
     def get_matching_blocks(self) -> List[Match]: ...
     def get_opcodes(self) -> List[Tuple[str, int, int, int, int]]: ...
     def get_grouped_opcodes(self, n: int = ...
-                            ) -> Iterable[Tuple[str, int, int, int, int]]: ...
+                            ) -> Iterable[List[Tuple[str, int, int, int, int]]]: ...
     def ratio(self) -> float: ...
     def quick_ratio(self) -> float: ...
     def real_quick_ratio(self) -> float: ...