From 254becff69cbf7bca4d4f5a0e93a01b10c8c29a1 Mon Sep 17 00:00:00 2001
From: rasmusvt <r.v.thogersen@kjemi.uio.no>
Date: Wed, 29 Jun 2022 16:13:19 +0200
Subject: [PATCH] Make sure filenames is a list before reading

---
 nafuma/xanes/io.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/nafuma/xanes/io.py b/nafuma/xanes/io.py
index 9676608..be7c9f3 100644
--- a/nafuma/xanes/io.py
+++ b/nafuma/xanes/io.py
@@ -183,12 +183,13 @@ def read_data(data: dict, options={}) -> pd.DataFrame:
 
     columns = ['ZapEnergy']
 
+    if not isinstance(data['path'], list):
+        data['path'] = [data['path']]
+        
     # Initialise DataFrame with only ZapEnergy-column
     xanes_data = pd.read_csv(data['path'][0])[['ZapEnergy']]
     xanes_data['ZapEnergy'] += options['adjust']
 
-    if not isinstance(data['path'], list):
-        data['path'] = [data['path']]
 
     for filename in data['path']:
         columns.append(filename)