improve __repr__()

Author: Linchin

google/cloud/bigquery/schema.py

@@ -494,10 +494,9 @@ def __hash__(self):
         return hash(self._key())
 
     def __repr__(self):
-        key = self._key()
-        policy_tags = key[-2]
+        *initial_tags, policy_tags, timestamp_precision_tag = self._key()
         policy_tags_inst = None if policy_tags is None else PolicyTagList(policy_tags)
-        adjusted_key = key[:-2] + (policy_tags_inst,) + (key[-1],)
+        adjusted_key = (*initial_tags, policy_tags_inst, timestamp_precision_tag)
         return f"{self.__class__.__name__}{adjusted_key}"
 
 

tests/system/test_client.py

@@ -77,7 +77,9 @@
 SCHEMA_PICOSECOND = [
     bigquery.SchemaField("full_name", "STRING", mode="REQUIRED"),
     bigquery.SchemaField("age", "INTEGER", mode="REQUIRED"),
-    bigquery.SchemaField("time_pico", "TIMESTAMP", mode="REQUIRED", timestamp_precision=12),
+    bigquery.SchemaField(
+        "time_pico", "TIMESTAMP", mode="REQUIRED", timestamp_precision=12
+    ),
 ]
 CLUSTERING_SCHEMA = [
     bigquery.SchemaField("full_name", "STRING", mode="REQUIRED"),