From adc9e5d0943c36120e0cfc3f7dbcf2f84877ce3c Mon Sep 17 00:00:00 2001
From: Sunny Sun <38218185+sunnyosun@users.noreply.github.com>
Date: Thu, 21 Mar 2024 13:02:35 +0100
Subject: [PATCH] =?UTF-8?q?=F0=9F=90=9B=20Fix=20zero=20division=20eror=20i?=
 =?UTF-8?q?n=20inspect?=
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---
 lamin_utils/_inspect.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lamin_utils/_inspect.py b/lamin_utils/_inspect.py
index da1bae7..b01ea05 100644
--- a/lamin_utils/_inspect.py
+++ b/lamin_utils/_inspect.py
@@ -54,6 +54,15 @@ def _validate_stats(identifiers: Iterable, matches: "np.ndarray"):
     nonval = _unique_rm_empty(df_val.index[~df_val["__validated__"]]).tolist()
 
     n_unique = len(val) + len(nonval)
+    if n_unique == 0:
+        return InspectResult(
+            validated_df=df_val,
+            validated=val,
+            nonvalidated=nonval,
+            frac_validated=0,
+            n_empty=0,
+            n_unique=0,
+        )
     n_empty = df_val.shape[0] - n_unique
     frac_nonval = round(len(nonval) / n_unique * 100, 1)
     frac_val = 100 - frac_nonval