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


@app.route('/_add_numbers')
def add_numbers():
    ''' Because numbers must be added server side '''
    a = request.args.get('a', 0, type=int)
    b = request.args.get('b', 0, type=int)
    return jsonify(result=a + b)


@app.route('/')
def index():
    return render_template('index.html')

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


@app.route('/_add_numbers')
def add_numbers():
    ''' Because numbers must be added server side '''
    a = request.args.get('a', 0, type=int)
    b = request.args.get('b', 0, type=int)
    return jsonify(result=a + b)


@app.route('/')
def index():
    return render_template('index.html')

if __name__ == '__main__':
    app.run('0.0.0.0',port=4000)

Add app run on main
Add app run on main

  from flask import Flask, jsonify, render_template, request
  app = Flask(__name__)
  
  
  @app.route('/_add_numbers')
  def add_numbers():
      ''' Because numbers must be added server side '''
      a = request.args.get('a', 0, type=int)
      b = request.args.get('b', 0, type=int)
      return jsonify(result=a + b)
  
  
  @app.route('/')
  def index():
      return render_template('index.html')
  
+ if __name__ == '__main__':
+     app.run('0.0.0.0',port=4000)
+ 
Add app run on main
## Code Before:
from flask import Flask, jsonify, render_template, request
app = Flask(__name__)


@app.route('/_add_numbers')
def add_numbers():
    ''' Because numbers must be added server side '''
    a = request.args.get('a', 0, type=int)
    b = request.args.get('b', 0, type=int)
    return jsonify(result=a + b)


@app.route('/')
def index():
    return render_template('index.html')

## Instruction:
Add app run on main
## Code After:
from flask import Flask, jsonify, render_template, request
app = Flask(__name__)


@app.route('/_add_numbers')
def add_numbers():
    ''' Because numbers must be added server side '''
    a = request.args.get('a', 0, type=int)
    b = request.args.get('b', 0, type=int)
    return jsonify(result=a + b)


@app.route('/')
def index():
    return render_template('index.html')

if __name__ == '__main__':
    app.run('0.0.0.0',port=4000)
