From b808fc1f071a69f13b9801cfe62ec4d8c50a11f1 Mon Sep 17 00:00:00 2001
From: Charles Lariviere <charles.lariviere@avidbots.com>
Date: Thu, 16 Mar 2023 13:30:59 -0400
Subject: [PATCH] add missing field_name in ValueError

---
 petastorm/unischema.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/petastorm/unischema.py b/petastorm/unischema.py
index ba9ef029..1b07992b 100644
--- a/petastorm/unischema.py
+++ b/petastorm/unischema.py
@@ -387,7 +387,7 @@ def dict_to_spark_row(unischema, row_dict):
         schema_field = unischema.fields[field_name]
         if value is None:
             if not schema_field.nullable:
-                raise ValueError('Field {} is not "nullable", but got passes a None value')
+                raise ValueError(f'Field {field_name} is not "nullable", but got passes a None value')
         if schema_field.codec:
             encoded_dict[field_name] = schema_field.codec.encode(schema_field, value) if value is not None else None
         else: