From: Debian Python Modules Team
 <python-modules-team@lists.alioth.debian.org>
Date: Sun, 15 Dec 2019 00:08:51 +0100
Subject: do-not-remove-cpp

Purpose: don't remove cython output.
---
 setup.py | 1 +
 1 file changed, 1 insertion(+)

--- a/setup.py
+++ b/setup.py
@@ -50,6 +50,7 @@ def clean(path):
         name = name.replace(".", "/")
         for ext in [".so", ".html", ".cpp", ".c"]:
             file_path = os.path.join(path, name + ext)
+            if file_path.endswith('mrmr.cpp'): continue
             if os.path.exists(file_path):
                 os.unlink(file_path)