From fd8ed66b956289d776ebff824a582f80438e65b4 Mon Sep 17 00:00:00 2001
From: Mervin Fansler <mmfansler@gmail.com>
Date: Wed, 24 Aug 2022 16:28:39 -0400
Subject: [PATCH] resolves #53

---
 Snakefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Snakefile b/Snakefile
index d6e6250..bb30081 100644
--- a/Snakefile
+++ b/Snakefile
@@ -36,6 +36,10 @@ message("[INFO] Loading sample data...")
 samples = pd.read_csv(config['sample_file'], index_col='sample_id')
 message("[INFO] Loaded %d samples." % len(samples.index))
 
+# conform cell_annots for input
+if config['cell_annots'] is None:
+    config['cell_annots'] = []
+
 wildcard_constraints:
     sample_id=config['sample_regex']