ip_app.py

from flask import Flask, request
app = Flask(__name__)
app.debug = False


@app.route('/')
def get_ip_address():
    style = """
    <style>
     body { text-align: center; font-size: 8em; color: rgb(176, 204, 105); font-family: Courier; letter-spacing:-0.05em; margin-top: 25px; font-weight: bold; background: rgb(58, 58, 58); }
    </style>
    """
    return " ".join([style, str(request.remote_addr)])

@app.route('/plain')
def get_ip_plain():
    return str(request.remote_addr)