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-rw-r--r--gn3/csvcmp.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/gn3/csvcmp.py b/gn3/csvcmp.py
index 24cbee0..87a1610 100644
--- a/gn3/csvcmp.py
+++ b/gn3/csvcmp.py
@@ -69,8 +69,8 @@ def csv_diff(base_csv, delta_csv, tmp_dir="/tmp") -> dict:
if line.startswith("Strain Name,Value,SE,Count"):
base_csv_header, delta_csv_header = line, delta_csv_list[i]
break
- longest_header = max(base_csv_header, delta_csv_header)
+ longest_header = max(base_csv_header, delta_csv_header, key=lambda x: len(x))
if base_csv_header != delta_csv_header:
if longest_header != base_csv_header:
base_csv = base_csv.replace(