def main():
    # Heroku support: bind to PORT if defined, otherwise default to 5000.
    if environ in 'PORT':
        port = int(environ.get('PORT'))
        host = '0.0.0.0'
    else:
        port = 5000
        host = '127.0.0.1'
    api.run(host=host, port=port)
dataset/ETHPy150Open taarifa/TaarifaAPI/taarifa_api/taarifa_api.py/main/swapped operands of `in`