BUG: Fix default for post_tfm_kwargs, fixes #697 (#710)

* BUG: fix default for post_tfm_kwargs, fixes Inconsistent syllable error rate between vak eval and predict #697 --------- Co-authored-by: zz367 <[email protected]>
vocalpy · Oct 2, 2023 · a783922 · a783922
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diff --git a/src/vak/config/eval.py b/src/vak/config/eval.py
@@ -128,7 +128,7 @@ class EvalConfig:
     post_tfm_kwargs = attr.ib(
         validator=validators.optional(are_valid_post_tfm_kwargs),
         converter=converters.optional(convert_post_tfm_kwargs),
-        default={},  # empty dict so we can pass into transform with **kwargs expansion
+        default=None,  # empty dict so we can pass into transform with **kwargs expansion
     )
 
     # optional, data loader

diff --git a/src/vak/config/learncurve.py b/src/vak/config/learncurve.py
@@ -74,5 +74,5 @@ class LearncurveConfig(TrainConfig):
     post_tfm_kwargs = attr.ib(
         validator=validators.optional(are_valid_post_tfm_kwargs),
         converter=converters.optional(convert_post_tfm_kwargs),
-        default={},  # empty dict so we can pass into transform with **kwargs expansion
+        default=None,  # empty dict so we can pass into transform with **kwargs expansion
     )