Only depend on pywin32 under CPython

Fixes #1874

2 files changed, 7 insertions, 1 deletions

diff --git a/CHANGES.rst b/CHANGES.rst
index a7a34001..d78475b4 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -5,6 +5,10 @@ v18.6.1
   emitted by gzip compression tool per
   :rfc:`1952#section-2.3.1` -- by :user:`webknjaz`.
 
+* :issue:`1874`: Restricted depending on pywin32 only under
+  CPython so that it won't get pulled-in under PyPy
+  -- by :user:`webknjaz`.
+
 v18.6.0
 -------
 
diff --git a/setup.py b/setup.py
index 8db36673..2731640e 100644
--- a/setup.py
+++ b/setup.py
@@ -103,7 +103,9 @@ params = dict(
         'xcgi': ['flup'],
 
         # https://docs.cherrypy.org/en/latest/advanced.html?highlight=windows#windows-console-events
-        ':sys_platform == "win32"': ['pywin32'],
+        ':sys_platform == "win32" and implementation_name == "cpython"': [
+            'pywin32',
+        ],
     },
     setup_requires=[
         'setuptools_scm',