Update .gitkeep

public/app

+from flask import Flask
+app = Flask(__name__)
+
+@app.route("/")
+def hello():
+    return "Hello World!"
+@app.route("/pdr")
+def pdr():
+    return "You are priyaranjan"
+
+@app.route("/harry")
+def harry():
+    return "Hello harry bhai4!"
+app.run(debug=True)
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