jupyter/os_env.ipynb

In [5]:

import os
print(os.getcwd())

/home/changcl/apps/jupyter/notebook

In [2]:

# /home/changcl/apps/jupyter
# uv add python-dotenv
from dotenv import load_dotenv

In [3]:

load_dotenv()

Out[3]:

True

In [6]:

database_url = os.getenv("DATABASE_URL")
api_key = os.getenv("API_KEY")

In [7]:

print(f"Database URL: {database_url}")
print(f"API Key: {api_key}")

Database URL: postgresql://user:password@host:port/database
API Key: your_secret_api_key