Question

我一直试图通过烧瓶部署机器学习模型。我需要通过url传递一些文本，以便可以检索它以进行分类。我正在使用request.args.get函数，但它抛出错误：

TypeError: index() got an unexpected keyword argument 'text'

网址是：

http://127.0.0.1:8000/index/text=Windows%20is%20a%20operating%20system

它也显示错误：

Internal Server Error

The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.

service.py：

from flask import Flask, request, jsonify
import pickle

app = Flask(__name__)

file = open("models/GridSearchCV_nb.pickle","rb")
nb_clf = pickle.load(file)

file = open("models/GridSearchCV_svm.pickle","rb")
svc_clf = pickle.load(file)

file = open("models/ctargets.pickle","rb")
targets = pickle.load(file)

def nbclassifyit(text):
  idx_nb = nb_clf.predict([text])[0]
  return targets[idx_nb]

def svclassifyit(text):
  idx_svc = svc_clf.predict([text])[0]
  return targets[idx_svc]


@app.route('/index/<text>')
def index():
 text = request.args.get('text')
 result = {"prediction" : nbclassifyit(text)}
 return jsonify(result)

我做错了什么？

Answer 1

request.args.get函数在路径末尾的?之后查找参数。您不需要在路线中使用<text>。

因此您可以尝试更改索引路径和功能，如下所示：

@app.route('/index/')
def index():
 text = request.args.get('text')
 result = {"prediction" : nbclassifyit(text)}
 return jsonify(result)

并在您的网址中提供文字参数：

http://127.0.0.1:8000/index/?text=Windows%20is%20a%20operating%20system

通过flask中的请求args访问url参数

1 个答案: