访问变量并在不同的 URL 中呈现它

Question

我尝试在 url('/hello') 上的 URL(/predict) 中呈现变量('predictions')。我是网络开发的初学者。如果有人知道，请帮忙。

app = Flask(__name__)

@app.route('/predict', methods=['POST'])
def apicall(responses = None):

    test_json = request.get_json()

    test = pd.read_json(test_json, orient='records')

    query_df = pd.DataFrame(test)

    clf = 'kmeans__model.pkl'

    print("Loading the model...")
    lin_reg_model = None
    with open(clf,'rb') as f:

        lin_reg_model = joblib.load(f)

        # lin_reg_model = joblib.load('/home/q/new_project/models/kmeans_model.pkl')

        print("The model has been loaded...doing predictions now...")

        predictions = lin_reg_model.predict(test)

        print(predictions)


        prediction_series = list(pd.Series(predictions))

        final_predictions = pd.DataFrame(list(zip(prediction_series)))

        responses = jsonify(predictions=final_predictions.to_json(orient="records"))
        responses.status_code = 200

        return (responses)

@app.route('/hello')

def hello():

  **What should be used here to render *predictions*?**  

    return 'Hello, World '

Answer 1

如果您愿意，您可以返回模板并以 html 显示。创建 templates 文件夹并创建 html 文件。

import requests

def hello():
    response = requests.get(url_for('apicall'))
    return render_template('<yourtemplate.html>', predictions=response.json())

HTML

{{ predictions }}

注意：有关线程和部署的任何问题请点击此链接Handling multiple requests in Flask