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PydanticOutputParser doc nb: use langchain.pydantic_v1; remove unused imports (#10651)

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Description: This PR changes the import section of the
`PydanticOutputParser` notebook.
* Import from `langchain.pydantic_v1` instead of `pydantic`
* Remove unused imports

Issue: running the notebook as written, when pydantic v2 is installed,
results in the following:
```python
PydanticDeprecatedSince20: Pydantic V1 style `@validator` validators are deprecated. You should migrate to Pydantic V2 style `@field_validator` validators, see the migration guide for more details. Deprecated in Pydantic V2.0 to be removed in V3.0. See Pydantic V2 Migration Guide at https://errors.pydantic.dev/2.3/migration/
```
[...]
```python
PydanticUserError: The `field` and `config` parameters are not available in Pydantic V2, please use the `info` parameter instead.

For further information visit https://errors.pydantic.dev/2.3/u/validator-field-config-info
```
This commit is contained in:
Joshua Sundance Bailey 2023-09-15 17:05:01 -04:00 committed by GitHub
parent a07491cfdc
commit 0a1dc04875
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1 changed files with 5 additions and 18 deletions
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23
docs/extras/modules/model_io/output_parsers/pydantic.ipynb
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@ -13,22 +13,6 @@
"Use Pydantic to declare your data model. Pydantic's BaseModel is like a Python dataclass, but with actual type checking + coercion."
]
},
{
"cell_type": "code",
"execution_count": 1,
"id": "b322c447",
"metadata": {},
"outputs": [],
"source": [
"from langchain.prompts import (\n",
" PromptTemplate,\n",
" ChatPromptTemplate,\n",
" HumanMessagePromptTemplate,\n",
")\n",
"from langchain.llms import OpenAI\n",
"from langchain.chat_models import ChatOpenAI"
]
},
{
"cell_type": "code",
"execution_count": 2,
@ -36,9 +20,12 @@
"metadata": {},
"outputs": [],
"source": [
"from typing import List\n",
"\n",
"from langchain.llms import OpenAI\n",
"from langchain.output_parsers import PydanticOutputParser\n",
"from pydantic import BaseModel, Field, validator\n",
"from typing import List"
"from langchain.prompts import PromptTemplate\n",
"from langchain.pydantic_v1 import BaseModel, Field, validator"
]
},
{