From 66f167aa35caae60b65d43e2e2f134fc7cdf1e97 Mon Sep 17 00:00:00 2001
From: Adam Turner <9087854+aa-turner@users.noreply.github.com>
Date: Tue, 21 Oct 2025 13:30:48 +0100
Subject: [PATCH 1/4] Ensure README changes don't affect whitespace

---
 release.py            | 4 ++--
 tests/test_release.py | 9 ++++++---
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/release.py b/release.py
index 8652c23b..a26e3a3b 100755
--- a/release.py
+++ b/release.py
@@ -446,9 +446,9 @@ def tweak_readme(tag: Tag, filename: str = "README.rst") -> None:
     print(f"Updating {filename}...", end=" ")
     readme = Path(filename)
 
-    # Update first line: "This is Python version 3.14.0 alpha 7"
+    # Update first line: "This is Python version X.Y.Z {release_level} N"
     # and update length of underline in second line to match.
-    lines = readme.read_text().splitlines()
+    lines = readme.read_text(encoding="utf-8").split("\n")
     this_is = f"This is Python version {tag.long_name}"
     underline = "=" * len(this_is)
     lines[0] = this_is
diff --git a/tests/test_release.py b/tests/test_release.py
index 1947f0dd..92814f7b 100644
--- a/tests/test_release.py
+++ b/tests/test_release.py
@@ -102,7 +102,7 @@ def test_tweak_readme(
     tag = release.Tag(test_tag)
 
     original_readme_file = Path(__file__).parent / "README.rst"
-    original_contents = original_readme_file.read_text()
+    original_contents = original_readme_file.read_text(encoding="utf-8")
     readme_file = tmp_path / "README.rst"
     readme_file.write_text(original_contents)
 
@@ -110,8 +110,11 @@ def test_tweak_readme(
     release.tweak_readme(tag, filename=str(readme_file))
 
     # Assert
-    original_lines = original_contents.splitlines()
-    new_lines = readme_file.read_text().splitlines()
+    original_lines = original_contents.split("\n")
+    new_contents = readme_file.read_text(encoding="utf-8")
+    new_lines = new_contents.split("\n")
     assert new_lines[0] == expected_version
     assert new_lines[1] == expected_underline
     assert new_lines[2:] == original_lines[2:]
+    assert original_contents.endswith("\n")
+    assert new_contents.endswith("\n")

From 5a23a36a343160d66883fcc8e1f94b585b99908c Mon Sep 17 00:00:00 2001
From: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Date: Wed, 12 Nov 2025 16:30:42 +0000
Subject: [PATCH 2/4] no need for encoding arg

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
---
 release.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/release.py b/release.py
index a26e3a3b..50a76fd4 100755
--- a/release.py
+++ b/release.py
@@ -448,7 +448,7 @@ def tweak_readme(tag: Tag, filename: str = "README.rst") -> None:
 
     # Update first line: "This is Python version X.Y.Z {release_level} N"
     # and update length of underline in second line to match.
-    lines = readme.read_text(encoding="utf-8").split("\n")
+    lines = readme.read_text().split("\n")
     this_is = f"This is Python version {tag.long_name}"
     underline = "=" * len(this_is)
     lines[0] = this_is

From 06b3be7ecb6a3d3d279cea1053871d5ae831466c Mon Sep 17 00:00:00 2001
From: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Date: Wed, 12 Nov 2025 16:30:53 +0000
Subject: [PATCH 3/4] ditto

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
---
 tests/test_release.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/test_release.py b/tests/test_release.py
index 92814f7b..b47877fb 100644
--- a/tests/test_release.py
+++ b/tests/test_release.py
@@ -102,7 +102,7 @@ def test_tweak_readme(
     tag = release.Tag(test_tag)
 
     original_readme_file = Path(__file__).parent / "README.rst"
-    original_contents = original_readme_file.read_text(encoding="utf-8")
+    original_contents = original_readme_file.read_text()
     readme_file = tmp_path / "README.rst"
     readme_file.write_text(original_contents)
 

From df608d06d23d311395c0325e973ea87163107ccb Mon Sep 17 00:00:00 2001
From: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Date: Wed, 12 Nov 2025 16:31:01 +0000
Subject: [PATCH 4/4] and again

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
---
 tests/test_release.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/test_release.py b/tests/test_release.py
index b47877fb..c72289ae 100644
--- a/tests/test_release.py
+++ b/tests/test_release.py
@@ -111,7 +111,7 @@ def test_tweak_readme(
 
     # Assert
     original_lines = original_contents.split("\n")
-    new_contents = readme_file.read_text(encoding="utf-8")
+    new_contents = readme_file.read_text()
     new_lines = new_contents.split("\n")
     assert new_lines[0] == expected_version
     assert new_lines[1] == expected_underline