hello word app

app.py

+from flask import Flask
+import os
+
+app = Flask(__name__)
+
+
+name = os.getenv('name')
+
+@app.route('/')
+def hello_world():
+    return f'Hello, {name}!'
+
+if __name__ == '__main__':
+    app.run(debug=True, host=os.environ.get('FLASK_RUN_HOST', '0.0.0.0'), port=int(os.environ.get('FLASK_RUN_PORT', 5000)))
+

requirements.txt

+Flask==3.0.0
+requests==2.26.0
+Flask-DotEnv==0.1.2