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fix(core): output parser bugs in xml.py and pydantic.py (#35641)

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- **Fix missing spaces in error messages in `xml.py`**: Adjacent string
literals in two `ImportError` messages were missing spaces between them,
resulting in concatenated words like "parser.You" and "defusedxml`See".
- **Fix `partial` parameter not forwarded in
`PydanticOutputParser.parse_result`**: The `partial` parameter was
accepted but not passed to `super().parse_result()`, so partial parsing
mode had no effect.

---------

Signed-off-by: JiangNan <1394485448@qq.com>
Co-authored-by: Mason Daugherty <github@mdrxy.com>
This commit is contained in:
AI不止语
2026-07-06 08:31:20 +08:00
committed by GitHub
parent 58da7ff318
commit 3a60533295
2 changed files with 8 additions and 7 deletions
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2
libs/core/langchain_core/output_parsers/pydantic.py
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@@ -74,7 +74,7 @@ class PydanticOutputParser(JsonOutputParser, Generic[TBaseModel]):
The parsed Pydantic object.
"""
try:
json_object = super().parse_result(result)
json_object = super().parse_result(result, partial=partial)
return self._parse_obj(json_object)
except OutputParserException:
if partial:

13
libs/core/langchain_core/output_parsers/xml.py
View File

@@ -63,8 +63,9 @@ class _StreamingParser:
if not _HAS_DEFUSEDXML:
msg = (
"defusedxml is not installed. "
"Please install it to use the defusedxml parser."
"You can install it with `pip install defusedxml` "
"Please install it to use the defusedxml parser. "
"You can install it with `pip install defusedxml`. "
"See https://github.com/tiran/defusedxml for more details"
)
raise ImportError(msg)
parser_ = XMLParser(target=TreeBuilder())
@@ -214,8 +215,8 @@ class XMLOutputParser(BaseTransformOutputParser[dict[str, Any]]):
Raises:
OutputParserException: If the XML is not well-formed.
ImportError: If defus`edxml is not installed and the `defusedxml` parser is
requested.
ImportError: If `defusedxml` is not installed and the `defusedxml` parser
is requested.
"""
# Try to find XML string within triple backticks
# Imports are temporarily placed here to avoid issue with caching on CI
@@ -224,8 +225,8 @@ class XMLOutputParser(BaseTransformOutputParser[dict[str, Any]]):
if not _HAS_DEFUSEDXML:
msg = (
"defusedxml is not installed. "
"Please install it to use the defusedxml parser."
"You can install it with `pip install defusedxml`"
"Please install it to use the defusedxml parser. "
"You can install it with `pip install defusedxml`. "
"See https://github.com/tiran/defusedxml for more details"
)
raise ImportError(msg)