Catch exception when jwt deps are missing

pyproject.toml

@@ -96,8 +96,6 @@ cryptography = { version = ">=3.4.6", optional = true }
 PyJWT = { version = "~=2.4", optional = true }
 
 [tool.poetry.extras]
-# TODO: Add 'cryptography' and 'PyJWT' to the 'jwt' when we want to remove them
-# from the main dependencies
 jwt = [
     "cryptography",
     "PyJWT",
@@ -278,9 +276,9 @@ warn_unused_ignores = true
 ignore_missing_imports = true
 module = [
     "backports.datetime_fromisoformat.*",
-    "joblib.*",  # TODO: Remove when https://github.com/joblib/joblib/issues/1516 is shipped
-    "jsonpath_ng.*",
-    "pyarrow.*", # TODO: Remove when https://github.com/apache/arrow/issues/32609 if implemented and released
+    "joblib.*",       # TODO: Remove when https://github.com/joblib/joblib/issues/1516 is shipped
+    "jsonpath_ng.*",  # TODO: Remove when https://github.com/h2non/jsonpath-ng/issues/152 is implemented and released
+    "pyarrow.*",      # TODO: Remove when https://github.com/apache/arrow/issues/32609 if implemented and released
 ]
 
 [tool.poetry-dynamic-versioning]

singer_sdk/authenticators.py

@@ -568,11 +568,16 @@ def oauth_request_payload(self) -> dict:
             Payload object for OAuth.
 
         Raises:
+            RuntimeError: If the JWT dependencies are not installed.
             ValueError: If the private key is not set.
         """
-        import jwt  # noqa: PLC0415
-        from cryptography.hazmat.backends import default_backend  # noqa: PLC0415
-        from cryptography.hazmat.primitives import serialization  # noqa: PLC0415
+        try:
+            import jwt  # noqa: PLC0415
+            from cryptography.hazmat.backends import default_backend  # noqa: PLC0415
+            from cryptography.hazmat.primitives import serialization  # noqa: PLC0415
+        except ModuleNotFoundError as ex:
+            msg = "Install singer-sdk[jwt] to use OAuthJWTAuthenticator."
+            raise RuntimeError(msg) from ex
 
         if not self.private_key:
             msg = "Missing 'private_key' property for OAuth payload."