Fix None values written as literal "None" in Google Sheets

records_to_values used str(record.get(h, "")) which only defaulted to ""
for missing keys. When the key existed with value None (from pandas NaN),
str(None) produced the string "None" in sheet cells instead of empty.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: RafaelPo

everyrow-mcp/src/everyrow_mcp/sheets_client.py

@@ -301,5 +301,10 @@ def records_to_values(records: list[dict[str, Any]]) -> list[list[str]]:
 
     rows = [headers]
     for record in records:
-        rows.append([str(record.get(h, "")) for h in headers])
+        rows.append(
+            [
+                str(v) if v is not None else ""
+                for v in (record.get(h, "") for h in headers)
+            ]
+        )
     return rows

everyrow-mcp/tests/test_sheets_tools.py

@@ -194,6 +194,13 @@ def test_missing_keys_become_empty(self):
         values = records_to_values(records)
         assert values[2] == ["3", ""]
 
+    def test_none_values_become_empty(self):
+        """None values (e.g. from pandas NaN) should become empty strings, not 'None'."""
+        records = [{"name": "Alice", "age": None}, {"name": None, "age": "30"}]
+        values = records_to_values(records)
+        assert values[1] == ["Alice", ""]
+        assert values[2] == ["", "30"]
+
 
 # ── Client tests (mocked httpx) ─────────────────────────────────────