diff --git a/erddapy/core/url.py b/erddapy/core/url.py
index 4a86d43..b54fcea 100644
--- a/erddapy/core/url.py
+++ b/erddapy/core/url.py
@@ -2,7 +2,6 @@
 
 from __future__ import annotations
 
-import os
 import copy
 import functools
 import io
diff --git a/erddapy/erddapy.py b/erddapy/erddapy.py
index 83ea1e7..28be59c 100644
--- a/erddapy/erddapy.py
+++ b/erddapy/erddapy.py
@@ -405,8 +405,14 @@ def to_pandas(
         response = kw.pop("response", "csvp")
         distinct = kw.pop("distinct", False)
         url = self.get_download_url(response=response, distinct=distinct)
-        requests_kwargs = requests_kwargs if requests_kwargs else self.requests_kwargs
-        return to_pandas(url, requests_kwargs=requests_kwargs, pandas_kwargs=dict(**kw))
+        requests_kwargs = (
+            requests_kwargs if requests_kwargs else self.requests_kwargs
+        )
+        return to_pandas(
+            url,
+            requests_kwargs=requests_kwargs,
+            pandas_kwargs=dict(**kw),
+        )
 
     def to_ncCF(  # noqa: N802
         self: ERDDAP,