base_app.py

import sys
import platform
from fastapi import FastAPI

app = FastAPI()

@app.get("/")
def greet_json():
    return {"Hello": "World!"}

@app.get("/version")
def get_version():
    return {
        "python_version": sys.version.split()[0],
        "platform": platform.platform(),
        "full_version": sys.version
    }