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Issue-823 #824

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17f3cf0
proposed fix
ganatraad Dec 14, 2025
81c239a
check key type
ganatraad Dec 14, 2025
fccc664
changelog
ganatraad Dec 14, 2025
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7 changes: 7 additions & 0 deletions CHANGELOG.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,13 @@ paths are considered internals and can change in minor and patch releases.
v4.45.0 (unreleased)
--------------------

Fixed
^^^^^
- Overrides for nested keys in dict. Issue (`#823
<https://github.com/omni-us/jsonargparse/issues/823>`__).
- ``Issue-823`` (`#824
<https://github.com/omni-us/jsonargparse/pull/824>`__).

Added
^^^^^
- Signature methods now when given ``sub_configs=True``, list of paths types can
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6 changes: 5 additions & 1 deletion jsonargparse/_typehints.py
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Expand Up @@ -919,7 +919,11 @@ def adapt_typehints(
elif typehint_origin in mapping_origin_types:
if isinstance(val, NestedArg):
if isinstance(prev_val, dict):
val = {**prev_val, val.key: val.val}
if isinstance(val.key, str) and "." in val.key:
key_prefix, key_suffix = val.key.split(".", 1)
val = {**prev_val, key_prefix: {key_suffix: val.val}}
else:
val = {**prev_val, val.key: val.val}
else:
val = {val.key: val.val}
elif isinstance(val, MappingProxyType):
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