from flask import Flask, redirect, url_for, request, render_template
app = Flask(__name__)

hotelavail={
            1:
            {'Room1':10,'Room2':5,'Room3':7},
            2:
            {'Room1':9,'Room2':2,'Room3':0},
            3:
            {'Room1':6,'Room2':11,'Room3':3}
            }

@app.route('/avail', methods= ['POST','GET'])
def avail():
    if request.method == 'GET':
        hotelid = int(request.args.get('hotelid'))
        return render_template('list_avail.html',dict=hotelavail[hotelid])
    else:
        return Null

if __name__ == '__main__':
    app.run(debug=1)