status web server

def status(host=None, port=None):
    """status web server"""
    app.config['HOST'] = first_value(host, app.config.get('HOST',None), '0.0.0.0')
    app.config['PORT'] = int(first_value(port, app.config.get('PORT',None), 5001))
    if app.config['HOST'] == "0.0.0.0": 
        host="127.0.0.1"
    else:
        host = app.config['HOST']
    port = app.config['PORT']    
    try:
        rep = requests.get('http://%s:%s/api/status' % (host,port))
        if rep.status_code == 200:
            try:
                rep = json.loads(rep.text)
                for k in rep:
                    print('%s\t: %s' % (k, rep[k]))
            except:
                print('web server is not flaskserver', file=sys.stderr)
        else:
            print('web server is not flaskserver', file=sys.stderr)
    except:
        print('web server is not started', file=sys.stderr)