main.py

from flask import Flask, make_response

app = Flask(__name__)


@app.route('/no-space')
def no():
    return make_response(('Hello', 200, {'Content-Disposition': 'attachment; filename=hello.txt'}))


@app.route('/space')
def yes():
    return make_response(('Hello', 200, {'Content-Disposition': 'attachment; filename = oh-no.txt'}))


if __name__ == "__main__":
    app.run()

requirements.pip

Flask==0.10.1
itsdangerous==0.24
Jinja2==2.8
MarkupSafe==0.23
Werkzeug==0.11.5

test.sh

#!/usr/bin/env bash

pip install -r requirements.pip

python main.py & pid=$!

echo $pid

sleep 5

curl -LOJ 'http://localhost:5000/no-space'

stat hello.txt

curl -LOJ 'http://localhost:5000/space'

stat oh-no.txt

kill $pid
rm hello.txt space

To run, do:

bash ./test.sh

Must have python and pip installed.