[Bug]: precedence of data read by pydantic-settings

[HardMax71]

Bug Description

pydantic-settings reads first from env params, not from specified file. -> need to fix.

Also maybe toml instead of env?

Steps to Reproduce

Example:

import os
from pydantic_settings import BaseSettings, SettingsConfigDict

os.environ["S_THEORY"] = "Right"

with open(".env", "w") as f:
    f.write("S_THEORY=Wrong")

class Config(BaseSettings):
    model_config = SettingsConfigDict(env_file=".env")

    s_theory: str

conf = Config()

print(f"Inside Pydantic:  {conf.s_theory}")            # Right
print(f"Inside OS Env:    {os.getenv('S_THEORY')}")    # Right

# Cleanup
os.remove(".env")
del os.environ["S_THEORY"]

Expected Behavior

Should read from given file regardless what is in env

Component

Backend API

Environment

No response

Relevant Logs

Checklist

• I have searched existing issues to ensure this is not a duplicate
• I have included steps to reproduce the issue