client.py

from requests import get,post
from json import loads

PORT = "5000"
HOST = "localhost"

get_request_content = get('http://'+HOST+':'+PORT+'/hello').content
print "response data: ", loads(get_request_content)['content']

post_request_content = post('http://'+HOST+':'+PORT+'/incr', data={"num":548}).content
print "response data: ", loads(post_request_content)['content']

server.py

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

# sample get request
@app.route("/hello", methods=['GET'])
def hello():
    return jsonify({"content": "Hello World!"})

# sample post request
@app.route("/incr", methods=['POST'])
def incr():
    return jsonify({"content": int(request.values["num"])+1})

if __name__ == "__main__":
    app.run(host='0.0.0.0', port=5000) # change the port to your liking