pymongo

问题 Here is the statement which fails: db.some_collection.update(query,modifier_set, upsert=True, safe=True) modifier_set is of the form {"$inc":{...}, "$addToSet":{...}} I get an OperationFailure error: $ operator made object too large Now, it's highly unlikely that my document it more that 16MB. Any other possible reasons for such failure ? 回答1: It is actually a case of oversized document. db.collection_name.stats() confirmed it. 来源： https://stackoverflow.com/questions/11224942/mongodb-update

问题 So a little background, Ive worked with mongodb before in node.js with mongoose.js. And now I decided to try out to work with python and pymongo. But when I try to insert a document in to my collection I just get a error off: pymongo.errors.DuplicateKeyError: E11000 duplicate key error index: database.emails.$email_1 dup key: { : "mail@example.com" } I have been looking araund on the internet for a solution both in python but allso in other languages. It might very well be that sense iv only

问题 Using the pymongo driver bare to connect python to mongodb, why is it that using an ObjectId instance as the key for an embedded document raises an InvalidDocument error? I am trying to link documents using objectids and cant seem to understand why I would want to convert them to strings when the ones created automatically for the driver are ObjectId instances. item = collection.find({'x':'foo'}) item['otherstuff'] = {pymongo.objectid.ObjectId() : 'data about this link'} collection.update({'x

问题 I've looked at other solutions to this, such as: Mongodb: Connection reset by peer Mongodb : AutoReconnect, Connection reset by peer But still have this error. I'm trying to load a large GeoJSON file into MongoDB. Here's my code: https://gist.github.com/mittenchops/6499844 using the iterative json parser here: https://github.com/isagalaev/ijson Here is my error: Traceback (most recent call last): File "upload2mongo.py", line 57, in <module> main(sys.argv) File "upload2mongo.py", line 52, in

问题 I am working on pagination in flask(Python framework) using flask-paginate (just for ref) I am able to achieve pagination for just a find query as below: from flask_paginate import Pagination from flask_paginate import get_page_args def starting_with_letter(letter): page, per_page, offset = get_page_args() collection_name=letter.lower()+'_collection' words=db[collection_name] data_db=words.find() data=data_db.limit(per_page).skip(offset) '''Here I have achieved the limit and skip'''

问题 My Python code queries a MongoDB and gets back an array of the following objects: { u'attribute': u'value', u'_id': ObjectId('534776c66e5987041f6154bd') } What I want to achieve, is to return the following JSON: { 'mycollectionkey' : [ { 'attribute':'value', '_id': ObjectId('534776c66e5987041f6154bd') }, ...and so on. ] } However, when I do: docs = mongodb.find(...query...) docs_json = bson.json_util.dumps(docs) return flask.jsonify(success=True,mycollectionkey=docs_json) I get: {

问题 pymongo throws me an error when trying to query and element from tags db.users.find({"pseudo":"alucaard"}).distinct("produit_up") Out[1]: [{u'abus': 0, u'avctype': u'image/jpeg', u'date': u'2012-09-15', u'description': u'le fameux portable solide', u'id': u'alucaard134766932677', u'namep': u'nokia 3310', u'nombre': 1, u'orientation': u'portrait', u'photo': ObjectId('5053cd4e3a5f3a0990da8a61'), u'prix': 1000, u'tags': [u'solide', u'le', u'fameux', u'portable'], u'vendu': False}] list(db.users

问题 I'm using mongodb for my python(2.7) project with django framework..when i give python manage.py runserver it will work but if i sync the db (python manage.py syncdb) the following error displayed in terminal Creating tables ... Traceback (most recent call last): File "manage.py", line 14, in <module> execute_manager(settings) File "/usr/lib/pymodules/python2.7/django/core/management/__init__.py", line 438, in execute_manager utility.execute() File "/usr/lib/pymodules/python2.7/django/core

问题 I have a number I'm getting from an external source I want to write to the mongo as Int The problem is that the number is above signed Int64 (which is how mongo implements it) - but is still fits unsinged int64 The number is: 9223372036854776000 How can I still write it to mongo? I'm getting OverflowError: MongoDB can only handle up to 8-byte ints 回答1: With the latest PyMongo and MongoDB 3.4 or later, you can use the standard Python Decimal with the new BSON Decimal128 type. from decimal

问题 I am trying to run web application using mongodb and pymongo to serve data from database. The error I am getting is ImportError: No module named parse. Please see below error.log from apache2 web server: mod_wsgi (pid=18824): Target WSGI script '/var/www/FlaskApp/flaskapp.wsgi' cannot be loaded as Python module. [:error] [pid 18824:tid 139967053518592] mod_wsgi (pid=18824): Exception occurred processing WSGI script '/var/www/FlaskApp/flaskapp.wsgi'. [:error] [pid 18824:tid 139967053518592]