From 3eb5ff9e15c8ed4e3b22321df980771d4fb2ee46 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alex=20Gr=C3=B6nholm?= <alex.gronholm@nextday.fi>
Date: Fri, 4 Dec 2020 12:00:30 +0200
Subject: [PATCH] Fixed TypeError when a unicode generator name was passed on
 Python 2.7

Fixes #388.
---
 docs/news.rst            | 6 ++++++
 src/wheel/bdist_wheel.py | 5 +++++
 2 files changed, 11 insertions(+)

diff --git a/docs/news.rst b/docs/news.rst
index 1812e122..debb4122 100644
--- a/docs/news.rst
+++ b/docs/news.rst
@@ -1,6 +1,12 @@
 Release Notes
 =============
 
+**UNRELEASED**
+
+- Fixed regression introduced in 0.36.0 on Python 2.7 when a custom generator
+  name was passed as unicode (Scikit-build)
+  (``TypeError: 'unicode' does not have the buffer interface``)
+
 **0.36.0 (2020-12-01)**
 
 - Added official Python 3.9 support
diff --git a/src/wheel/bdist_wheel.py b/src/wheel/bdist_wheel.py
index 9c9b0a88..80e43d0a 100644
--- a/src/wheel/bdist_wheel.py
+++ b/src/wheel/bdist_wheel.py
@@ -373,6 +373,11 @@ def run(self):
 
     def write_wheelfile(self, wheelfile_base, generator='bdist_wheel (' + wheel_version + ')'):
         from email.message import Message
+
+        # Workaround for Python 2.7 for when "generator" is unicode
+        if sys.version_info < (3,) and not isinstance(generator, str):
+            generator = generator.encode('utf-8')
+
         msg = Message()
         msg['Wheel-Version'] = '1.0'  # of the spec
         msg['Generator'] = generator