From a33a12453744a4504bd4df259d98e7d15f82261b Mon Sep 17 00:00:00 2001
From: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Date: Mon, 11 Jun 2018 13:59:38 -0700
Subject: [PATCH] make BZ2File and LZMAFile instantiable (#2115)

Part of #1476.
---
 stdlib/2and3/bz2.pyi | 5 +++--
 stdlib/3.3/lzma.pyi  | 4 ++--
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/stdlib/2and3/bz2.pyi b/stdlib/2and3/bz2.pyi
index 12cb9cc10..2cb329ce9 100644
--- a/stdlib/2and3/bz2.pyi
+++ b/stdlib/2and3/bz2.pyi
@@ -1,5 +1,6 @@
+import io
 import sys
-from typing import Any, BinaryIO, IO, Optional, Union
+from typing import Any, IO, Optional, Union
 
 if sys.version_info >= (3, 6):
     from os import PathLike
@@ -20,7 +21,7 @@ if sys.version_info >= (3, 3):
              errors: Optional[str] = ...,
              newline: Optional[str] = ...) -> IO[Any]: ...
 
-class BZ2File(BinaryIO):
+class BZ2File(io.BufferedIOBase, IO[bytes]):  # type: ignore  # python/mypy#5027
     def __init__(self,
                  filename: _PathOrFile,
                  mode: str = ...,
diff --git a/stdlib/3.3/lzma.pyi b/stdlib/3.3/lzma.pyi
index e858d031f..e0a698341 100644
--- a/stdlib/3.3/lzma.pyi
+++ b/stdlib/3.3/lzma.pyi
@@ -67,7 +67,7 @@ class LZMACompressor(object):
 class LZMAError(Exception): ...
 
 
-class LZMAFile(BinaryIO):
+class LZMAFile(io.BufferedIOBase, IO[bytes]):  # type: ignore  # python/mypy#5027
     def __init__(self,
                  filename: Optional[_PathOrFile] = ...,
                  mode: str = ...,
@@ -84,7 +84,7 @@ class LZMAFile(BinaryIO):
     def readable(self) -> bool: ...
     def writable(self) -> bool: ...
     def peek(self, size: int = ...) -> bytes: ...
-    def read(self, size: int = ...) -> bytes: ...
+    def read(self, size: Optional[int] = ...) -> bytes: ...
     def read1(self, size: int = ...) -> bytes: ...
     def readline(self, size: int = ...) -> bytes: ...
     def write(self, data: bytes) -> int: ...