From abf4ee4c2820d50d06f614d9bc78381ff4f13b7c Mon Sep 17 00:00:00 2001
From: Inada Naoki <songofacandy@gmail.com>
Date: Mon, 12 Apr 2021 15:08:03 +0900
Subject: [PATCH 1/3] bpo-43787: Add __iter__() method to GzipFile, BZ2File,
 and LZMAFile

---
 Lib/bz2.py  | 4 ++++
 Lib/gzip.py | 4 ++++
 Lib/lzma.py | 4 ++++
 3 files changed, 12 insertions(+)

diff --git a/Lib/bz2.py b/Lib/bz2.py
index 43f321ae852398..a2c588e7487f3d 100644
--- a/Lib/bz2.py
+++ b/Lib/bz2.py
@@ -197,6 +197,10 @@ def readline(self, size=-1):
         self._check_can_read()
         return self._buffer.readline(size)
 
+    def __iter__(self):
+        self._check_can_read()
+        return self._buffer.__iter__()
+
     def readlines(self, size=-1):
         """Read a list of lines of uncompressed bytes from the file.
 
diff --git a/Lib/gzip.py b/Lib/gzip.py
index 0a8993ba354711..9a4e0f9c00c580 100644
--- a/Lib/gzip.py
+++ b/Lib/gzip.py
@@ -398,6 +398,10 @@ def readline(self, size=-1):
         self._check_not_closed()
         return self._buffer.readline(size)
 
+    def __iter__(self):
+        self._check_not_closed()
+        return self._buffer.__iter__()
+
 
 class _GzipReader(_compression.DecompressReader):
     def __init__(self, fp):
diff --git a/Lib/lzma.py b/Lib/lzma.py
index c8b197055cddce..2ada7d81d3c813 100644
--- a/Lib/lzma.py
+++ b/Lib/lzma.py
@@ -221,6 +221,10 @@ def readline(self, size=-1):
         self._check_can_read()
         return self._buffer.readline(size)
 
+    def __iter__(self):
+        self._check_can_read()
+        return self._buffer.__iter__()
+
     def write(self, data):
         """Write a bytes object to the file.
 

From 063a68385c00b8dbb17b19c9000262ea37c97959 Mon Sep 17 00:00:00 2001
From: Inada Naoki <songofacandy@gmail.com>
Date: Mon, 12 Apr 2021 15:15:55 +0900
Subject: [PATCH 2/3] Add news

---
 .../next/Library/2021-04-12-15-15-50.bpo-43787.wCy_Wd.rst      | 3 +++
 1 file changed, 3 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Library/2021-04-12-15-15-50.bpo-43787.wCy_Wd.rst

diff --git a/Misc/NEWS.d/next/Library/2021-04-12-15-15-50.bpo-43787.wCy_Wd.rst b/Misc/NEWS.d/next/Library/2021-04-12-15-15-50.bpo-43787.wCy_Wd.rst
new file mode 100644
index 00000000000000..97004b3ba6cdd7
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2021-04-12-15-15-50.bpo-43787.wCy_Wd.rst
@@ -0,0 +1,3 @@
+Add `__iter__()` method to :class:`bz2.BZ2File`, :class:`gzip.GzipFile`, and
+:class:`lzma.LZMAFile`. It makes iterating them about 2x faster. Patch by
+Inada Naoki.

From e422cd9c76175ffd508a2a8be39a0bdd179b6ffd Mon Sep 17 00:00:00 2001
From: Inada Naoki <songofacandy@gmail.com>
Date: Mon, 12 Apr 2021 15:17:18 +0900
Subject: [PATCH 3/3] fix news rest format.

---
 .../next/Library/2021-04-12-15-15-50.bpo-43787.wCy_Wd.rst       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Misc/NEWS.d/next/Library/2021-04-12-15-15-50.bpo-43787.wCy_Wd.rst b/Misc/NEWS.d/next/Library/2021-04-12-15-15-50.bpo-43787.wCy_Wd.rst
index 97004b3ba6cdd7..9b8d945cbb8a8b 100644
--- a/Misc/NEWS.d/next/Library/2021-04-12-15-15-50.bpo-43787.wCy_Wd.rst
+++ b/Misc/NEWS.d/next/Library/2021-04-12-15-15-50.bpo-43787.wCy_Wd.rst
@@ -1,3 +1,3 @@
-Add `__iter__()` method to :class:`bz2.BZ2File`, :class:`gzip.GzipFile`, and
+Add ``__iter__()`` method to :class:`bz2.BZ2File`, :class:`gzip.GzipFile`, and
 :class:`lzma.LZMAFile`. It makes iterating them about 2x faster. Patch by
 Inada Naoki.