Question

我正在尝试学习webpy，所以我可以在运行Javascript的浏览器窗口中调用一些使用pymongo编写的python程序。我对Web编程一般都很陌生。现在，我试图通过简单地调整此处的示例教程文件来开始：http://kooneiform.wordpress.com/2010/02/28/python-and-ajax-for-beginners-with-webpy-and-jquery/

我已经在浏览器窗口中成功运行了示例文件。然后我调整app.py看起来像这样：

import web
import datetime
import time
from collections import OrderedDict
from math import *
import sys
import operator
import pymongo

def make_text(string):
    return string

urls = ('/', 'tutorial')
render = web.template.render('templates/')

app = web.application(urls, globals())

my_form = web.form.Form(
                web.form.Textbox('', class_='textfield', id='textfield'),
                )

def check_users(user_ids):
    """ helper function for user_id-based queries """

    connection = MongoClient()
    db = connection.test

    if user_ids == "all":
        user_list = []
        for user_id in db.user_ids.find():
            user_list.append(user_id["user_id"])
        user_ids = user_list
    return user_ids

class tutorial:
    def GET(self):
        form = my_form()
        return render.tutorial(form, "Your text goes here.")

    def POST(self):
        form = my_form()
        form.validates()
        s = form.value['textfield']
        users = check_users(s)
        return make_text(users)

if __name__ == '__main__':
    app.run()

当我运行它时，我得到＆＃34;名称错误：没有定义MongoClient。＆＃34;

如何让webpy打开Mongo连接，以便我可以从浏览器运行查询？

Answer 1

您需要导入您打算使用的任何模块/类。在这种情况下，替换

import pymongo

与

from pymongo import MongoClient

或者，因为您已经导入了pymongo模块，所以您只需执行

即可

connection = pymongo.MongoClient()

如何使用webpy调用pymongo的函数？

1 个答案: