从sklearn.externals导入joblib时收到导入错误

Question

摘自尾翼代码

from flask import Flask, request, jsonify, make_response
from flask_restplus import Api, Resource, fields
from sklearn.externals import joblib
import numpy as np
import sys

flask_app = Flask(__name__)
app = Api(app = flask_app, 
          version = "1.0", 
          title = "ML React App", 
          description = "Predict results using a trained model")

name_space = app.namespace('prediction', description='Prediction APIs')

model = app.model('Prediction params', 
                  {'Recency': fields.Float(required = True, 
                                               description="Recency Value", 
                                               help="Recency Value cannot be blank"),
                  'Frequency': fields.Float(required = True, 
                                               description="Frequency Value", 
                                               help="Frequency Value cannot be blank"),
                  'Monetary': fields.Float(required = True, 
                                            description="Monetary Value", 
                                            help="Monetary Value cannot be blank"),
                  })

classifier = joblib.load('classifier.joblib')

@name_space.route("/")
class MainClass(Resource):

    def options(self):
        response = make_response()
        response.headers.add("Access-Control-Allow-Origin", "*")
        response.headers.add('Access-Control-Allow-Headers', "*")
        response.headers.add('Access-Control-Allow-Methods', "*")
        return response

    @app.expect(model)      
    def post(self):
        try: 
            formData = request.json
            data = [val for val in formData.values()]
            prediction = classifier.predict(np.array(data).reshape(1, -1))
            types = { 0: "Loyal", 1: "NotLoyal"}
            response = jsonify({
                "statusCode": 200,
                "status": "Prediction made",
                "result": "The type of Loyalty is: " + types[prediction[0]]
                })
            response.headers.add('Access-Control-Allow-Origin', '*')
            return response
        except Exception as error:
            return jsonify({
                "statusCode": 500,
                "status": "Could not make prediction",
                "error": str(error)
            })

收到以下错误。

错误：导入“应用”时，引发了ImportError：

追踪（最近通话）： 在locate_app中，文件“ d：\ dilipan \ clg \ proj \ ml-react-app-template-master \ service \ venv \ lib \ site-packages \ flask \ cli.py” 导入（模块名称） 文件“ D：\ dilipan \ clg \ proj \ ML-React-App-Template-master \ service \ app.py”，第3行，在 从sklearn.externals导入joblibImportError：无法从'sklearn.externals'导入名称'joblib'（d：\ dilipan \ clg \ proj \ ml-react-app-template-master \ service \ venv \ lib \ site-packages \ sklearn \ externals__init __。py）

两个月前我在另一台PC上执行了相同的操作，并且运行正常。

无法从sklearn.externals导入joblib

任何人都将不胜感激。预先感谢。

Answer 1