X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/ff6bbd5d960ef0053b20c9d9c621c8a348980833..d34eb7fea38384cd1cd029179298116fabdbccd4:/src/black_primer/lib.py

diff --git a/src/black_primer/lib.py b/src/black_primer/lib.py
index afeb072..5c5576e 100644
--- a/src/black_primer/lib.py
+++ b/src/black_primer/lib.py
@@ -59,10 +59,12 @@ async def _gen_check_output(
         raise
 
     if process.returncode != 0:
+        returncode = process.returncode
+        if returncode is None:
+            returncode = 69
+
         cmd_str = " ".join(cmd)
-        raise CalledProcessError(
-            process.returncode, cmd_str, output=stdout, stderr=stderr
-        )
+        raise CalledProcessError(returncode, cmd_str, output=stdout, stderr=stderr)
 
     return (stdout, stderr)