Pydantic import error : `BaseSettings` has been moved to the `pydantic-settings` package.

[tcaminel-pro]

Checklist

• I have searched the existing issues for similar issues.
• I added a very descriptive title to this issue.
• I have provided sufficient information below to help reproduce this issue.

Summary

streamlit-pydantic does not work with recent Pydantic versions

When importing the module , we have : Pydantic import error : BaseSettings has been moved to the pydantic-settings package.

Reproducible Code Example

import streamlit as st
import streamlit_pydantic as sp
from pydantic import BaseModel


class ExampleModel(BaseModel):
    some_text: str
    some_number: int
    some_boolean: bool

data = sp.pydantic_form(key="my_sample_form", model=ExampleModel)
if data:
    st.json(data.model_dump())

Steps To Reproduce

Just run basic examples

Expected Behavior

No response

Current Behavior

Traceback (most recent call last):
File "/home/tcl/prj/genai-blueprint/python/test.py", line 2, in
import streamlit_pydantic as sp
File "/home/tcl/.cache/pypoetry/virtualenvs/genai-blueprint-2X6HL8i2-py3.12/lib/python3.12/site-packages/streamlit_pydantic/init.py", line 9, in
from .settings import StreamlitSettings
File "/home/tcl/.cache/pypoetry/virtualenvs/genai-blueprint-2X6HL8i2-py3.12/lib/python3.12/site-packages/streamlit_pydantic/settings.py", line 4, in
from pydantic import BaseSettings
File "/home/tcl/.cache/pypoetry/virtualenvs/genai-blueprint-2X6HL8i2-py3.12/lib/python3.12/site-packages/pydantic/init.py", line 412, in getattr
return _getattr_migration(attr_name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/tcl/.cache/pypoetry/virtualenvs/genai-blueprint-2X6HL8i2-py3.12/lib/python3.12/site-packages/pydantic/_migration.py", line 296, in wrapper
raise PydanticImportError(
pydantic.errors.PydanticImportError: BaseSettings has been moved to the pydantic-settings package. See https://docs.pydantic.dev/2.10/migration/#basesettings-has-moved-to-pydantic-settings for more details.

Is this a regression?

• Yes, this used to work in a previous version.

Debug info

• streamlit-pydantic version: 0.6
• Python version: 3.12
• Pydantic version : 2.10

Additional Information

No response

[HQuizzagan]

@tcaminel-pro I was able to do a workaround (a crude one) in case you need it to work too.

I basically manually revised the streamlit_pydantic source code itself after I did pip install inside my virtual environment. Since I am using venv, these would be in my .venvCustomName/lib/python3.12/site-packages/streamlit_pydantic.

You must first

pip install pydantic-settings

as per the instruction in this update

Now, just look for the settings.py in that directory and simple change the LINE 4

ORIGINAL:

from pydantic import BaseSettings

to NEW:

from pydantic_settings import BaseSettings

Currently, these are the versions that I am using

• pydantic==2.10.6
• pydantic_core==2.27.2
• streamlit-pydantic==0.6.0
• pydantic-settings==2.7.1

Hope this helps!

[shaurya157]

I wonder why this is happening, according to this line in code

streamlit-pydantic/src/streamlit_pydantic/settings.py

Line 5 in 9f84145

from pydantic_settings import (

the import is being done correctly, i.e. from pydantic_settings import ( BaseSettings, PydanticBaseSettingsSource, )

but in the venv I do see the settings file as from pydantic import BaseSettings which is causing the bug.