From ea7d611819dfcac42ded713e10f3c703f5d2b455 Mon Sep 17 00:00:00 2001
From: Ivan Usov <ivan.usov@psi.ch>
Date: Wed, 10 Feb 2021 13:20:22 +0100
Subject: [PATCH] Handle older files that don't contain "zebra_mode"

---
 pyzebra/ccl_io.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pyzebra/ccl_io.py b/pyzebra/ccl_io.py
index fa32338..450be76 100644
--- a/pyzebra/ccl_io.py
+++ b/pyzebra/ccl_io.py
@@ -126,6 +126,10 @@ def parse_1D(fileobj, data_type):
             # this is the end of metadata and the start of data section
             break
 
+    # handle older files that don't contain "zebra_mode" metadata
+    if "zebra_mode" not in metadata:
+        metadata["zebra_mode"] = "nb"
+
     # read data
     scan = []
     if data_type == ".ccl":