Flask debugger constantly detecting changes and reloading

Question

I have just started the Flask tutorials. At first, everything was working fine and I was able to get webpages to display and the debugger to do it's thing properly (ie auto-update web pages when changes are saved to my flask app file). Now, all of a sudden, the debugger is constantly detecting changes and updating (happens about once every second). Sometimes this behavior stops randomly when I make a change to app.py, or submit form data on the webpage, but it resumes as soon as I save another change to app.py. The message it gives is:

* Detected change in '/home/treehouse/workspace/app.py', reloading                                 
 * Restarting with stat                                                                             
 * Debugger is active!    
* Debugger pin code: 311-115-447

Here is my app.py code that (I presume) is causing the problem:

import json

from flask import (Flask, render_template, redirect, 
                   url_for, request, make_response)

app = Flask(__name__)


def get_saved_data():
  try:
    data = json.loads(request.cookies.get('character'))
  except TypeError:
    data = {}
  return data


@app.route('/')
def index():
  data = get_saved_data()
  return render_template('index.html', saves=data)

@app.route('/save', methods=['POST'])
def save():
  response = make_response(redirect(url_for('index')))
  data = get_saved_data()
  data.update(dict(request.form.items()))
  response.set_cookie('character', json.dumps(data))
  return response


app.run(debug=True, host='0.0.0.0', port=8000)

Other than my app.py file, I haven't made any changes to the templates or static files, aside from the changes to index.html specified in the video tutorial:

{% extends "layout.html" %}
{% block content %}
<!--Enter Name -->
<div class="enter-name">
    <div class="grid-100">
        <img src="/static/img/bear_avatar.svg" class="bear-avatar" />
    </div>
    <div class="grid-100">
        <form action="{{ url_for('save') }}" method="POST">
            <label>Name your bear</label>
            <input type="text" name="name" value="{{ saves.get('name', '') }}" autofocus>
            <input type="submit" value="Let's build it!">
        </form>
    </div>
</div>
{% endblock %}

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Nate Sturgeon

Nate Sturgeon

Flask debugger constantly detecting changes and reloading