diff --git a/sdk/identity/azure-identity/azure/identity/_internal/token_binding_transport_requests.py b/sdk/identity/azure-identity/azure/identity/_internal/token_binding_transport_requests.py
index 19d15abae1d9..aec49ae1f825 100644
--- a/sdk/identity/azure-identity/azure/identity/_internal/token_binding_transport_requests.py
+++ b/sdk/identity/azure-identity/azure/identity/_internal/token_binding_transport_requests.py
@@ -8,8 +8,8 @@
 import ssl
 from typing import Any, Optional
 
-from requests.adapters import HTTPAdapter
-from requests import Session
+from requests.adapters import HTTPAdapter  # pylint: disable=networking-import-outside-azure-core-transport
+from requests import Session  # pylint: disable=networking-import-outside-azure-core-transport
 from azure.core.pipeline.transport import (  # pylint: disable=non-abstract-transport-import, no-name-in-module
     RequestsTransport,
 )
diff --git a/sdk/identity/azure-identity/azure/identity/aio/_internal/token_binding_transport_asyncio.py b/sdk/identity/azure-identity/azure/identity/aio/_internal/token_binding_transport_asyncio.py
index fa236c2e4d4f..6aa02259c7f9 100644
--- a/sdk/identity/azure-identity/azure/identity/aio/_internal/token_binding_transport_asyncio.py
+++ b/sdk/identity/azure-identity/azure/identity/aio/_internal/token_binding_transport_asyncio.py
@@ -7,7 +7,7 @@
 """
 from typing import Any, Optional
 
-from requests import Session
+from requests import Session  # pylint: disable=networking-import-outside-azure-core-transport
 from azure.core.pipeline.transport import (  # pylint: disable=non-abstract-transport-import, no-name-in-module
     AsyncioRequestsTransport,
 )
diff --git a/sdk/identity/azure-identity/samples/custom_credentials.py b/sdk/identity/azure-identity/samples/custom_credentials.py
index 6177a4dbf0a7..4c6fcbae655e 100644
--- a/sdk/identity/azure-identity/samples/custom_credentials.py
+++ b/sdk/identity/azure-identity/samples/custom_credentials.py
@@ -7,9 +7,10 @@
 import time
 from typing import Optional, Union
 
+import msal
+
 from azure.core.credentials import AccessToken
 from azure.identity import AuthenticationRequiredError, AzureAuthorityHosts
-import msal
 
 
 class StaticTokenCredential(object):
@@ -30,7 +31,14 @@ def __init__(self, access_token: Union[str, AccessToken]) -> None:
     def get_token(
         self, *scopes: str, claims: Optional[str] = None, tenant_id: Optional[str] = None, **kwargs
     ) -> AccessToken:
-        """get_token is the only method a credential must implement"""
+        """Get an access token for the requested scopes.
+
+        :param str scopes: desired scopes for the access token.
+        :keyword str claims: additional claims required in the token request.
+        :keyword str tenant_id: optional tenant to include in the token request.
+        :return: An access token with the requested scopes.
+        :rtype: ~azure.core.credentials.AccessToken
+        """
 
         return self._token
 
@@ -46,13 +54,20 @@ def __init__(self, tenant_id: str, client_id: str) -> None:
     def get_token(
         self, *scopes: str, claims: Optional[str] = None, tenant_id: Optional[str] = None, **kwargs
     ) -> AccessToken:
-        """get_token is the only method a credential must implement"""
+        """Get an access token for the requested scopes.
+
+        :param str scopes: desired scopes for the access token.
+        :keyword str claims: additional claims required in the token request.
+        :keyword str tenant_id: optional tenant to include in the token request.
+        :return: An access token with the requested scopes.
+        :rtype: ~azure.core.credentials.AccessToken
+        """
 
         now = int(time.time())
         result = self._app.acquire_token_interactive(list(scopes), claims=claims, tenant_id=tenant_id, **kwargs)
 
         try:
             return AccessToken(result["access_token"], now + int(result["expires_in"]))
-        except:
+        except Exception as ex:
             print("\nFailed to get a valid access token")
-            raise AuthenticationRequiredError(scopes)
+            raise AuthenticationRequiredError(scopes) from ex