chadrik commented on a change in pull request #11038: [BEAM-7746] More typing fixes URL: https://github.com/apache/beam/pull/11038#discussion_r396700454
########## File path: sdks/python/apache_beam/coders/coders.py ########## @@ -387,8 +387,11 @@ def register_structured_urn(urn, cls): """Register a coder that's completely defined by its urn and its component(s), if any, which are passed to construct the instance. """ - cls.to_runner_api_parameter = ( - lambda self, unused_context: (urn, None, self._get_component_coders())) + setattr( Review comment: mypy raises an error when overwriting a method: `Cannot assign to a method`. using `setattr` avoids the error. A similar situation arises when setting or getting dynamic attributes. We need to decide on a policy for these cases: 1) avoid the error using `setattr` and `getattr` 2) silence the error with a `# type: ignore[xxx]` comment The second option provides more context, but could hinge on how you feel about the aesthetics of `type ignore` comments. Either way, I agree a comment should be made on the preceding line to clarify. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services