Encrypt a .env file in Flask

1. Install

Get the Dotenvx Python SDK.

$ pip install python-dotenvx

And the CLI to encrypt files.

$ curl -sfS https://dotenvx.sh | sh

2. Encrypt

Encrypt your .env file.

$ dotenvx encrypt

3. Inject

Then inject your encrypted secrets at runtime.

import os
from flask import Flask
from dotenvx import load_dotenv

load_dotenv()

app = Flask(__name__)

@app.get("/")
def index():
    return f"HELLO: {os.getenv('HELLO')}"