fix

main.py

@@ -1,13 +1,14 @@
 from fastapi import FastAPI, UploadFile, HTTPException
 from ffmpeg import input, output, run
 import boto3
+import os
 
 app = FastAPI()
 
 # Define your AWS S3 credentials and bucket name
-aws_access_key_id = ENV['AWS_ACCESS_KEY_ID']
-aws_secret_access_key = ENV['AWS_SECRET_ACCESS_KEY']
-s3_bucket_name = ENV['S3_BUCKET_NAME']
+aws_access_key_id = os.environ['AWS_ACCESS_KEY_ID']
+aws_secret_access_key = os.environ['AWS_SECRET_ACCESS_KEY']
+s3_bucket_name = os.environ['S3_BUCKET_NAME']
 
 # Initialize an S3 client
 s3_client = boto3.client('s3', aws_access_key_id=aws_access_key_id, aws_secret_access_key=aws_secret_access_key)