HyukjinKwon commented on a change in pull request #35150:
URL: https://github.com/apache/spark/pull/35150#discussion_r781695929
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File path: python/pyspark/pandas/accessors.py
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@@ -335,14 +335,16 @@ def apply_batch(
if not isinstance(func, FunctionType):
assert callable(func), "the first argument should be a callable
function."
f = func
- func = lambda *args, **kwargs: f(*args, **kwargs)
+ func = lambda *args, **kwargs: f(*args, **kwargs) # noqa: E731
Review comment:
and it shouldn't have return type because it fails to properly infer the
schema later with `infer_return_type`.
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