ImportError:无法导入名称_UNPACK_INT

Question

from flask import Flask
from flask import render_template
from pymongo import MongoClient
import json
from bson import json_util
from bson.json_util import dum

app = Flask(__name__)


MONGODB_HOST = 'localhost'
MONGODB_PORT = 27017
DBS_NAME = 'donorschoose'
COLLECTION_NAME = 'projects'
FIELDS = {'school_state': True, 'resource_type': True, 'poverty_level': True, 'date_posted': True, 'total_donations': True, '_id': False}

@app.route('/')
def index():
    return render_template("index.html")

@app.route("/donorschoose/projects")
def donorschoose_projects():
    connection = MongoClient(MONGODB_HOST, MONGODB_PORT)
    collection = connection[DBS_NAME][COLLECTION_NAME]
    projects = collection.find(projection=FIELDS)
    json_projects = []
    for project in projects:
        json_projects.append(project)
    json_projects = json.dumps(json_projects, default=json_util.default)
    connection.close()
    return json_projects


if __name__ == "__main__":
    app.run(host='0.0.0.0',port=5000,debug=True)

下面是我的教程：http://adilmoujahid.com/posts/2015/01/interactive-data-visualization-d3-dc-python-mongodb/

以下是我运行服务器时的错误。

回溯(最近一次调用)：文件"app.py"，第3行 从pymongo导入MongoClient文件MongoClient 第83行，在 从"/home/olalkeith/Documents/Github/myproject/venv/local/lib/python2.7/site-packages/pymongo/collection.py"，导入ReturnDocument文件 第27行，在 从"/home/olalkeith/Documents/Github/myproject/venv/local/lib/python2.7/site-packages/bson/raw_bson.py"，导入RawBSONDocument文件 第20行，在 从bson导入_UNPACK_INT，_iterate_elements ImportError:无法导入名称_UNPACK_INT

Answer 1

我只是遇到了同样的问题。尝试删除bson模块并重新安装pymongo。见这个答案：

https://stackoverflow.com/a/12983651/4621508