Recent questions tagged Pymongo

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pymongo - How to allow all hosts to a replica set in mongodb

When I am connecting my replica set from local machine like this "mongodb://my_server_ip:27018/?readPreference= ... hosts to this replica? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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393 views

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pymongo - Aggregate MongoDB results by ObjectId date

How can I aggregate my MongoDB results by ObjectId date. Example: Default cursor results: cursor = [ {'_id': ... to do right now. Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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641 views

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pymongo - MongoClient opened before fork. Create MongoClient only Flask

I am running Flask with uwsgi threaded mode with processes 4 and using pymongo also flask_mongoengine and uwsgi says ... for best performance ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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367 views

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pymongo - In MongoDB how to return only part of array?

Consider collection "fruits", in which I have this document (I'm using Python's pymongo driver, btw): { ... to add additional fields if needed. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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476 views

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pymongo - Is it possible to sum 2 fields in MongoDB using the Aggregation framework?

I have a collection with documents that contain fields type, totalA and totalB I want to use the aggregation ... instead of the combined value. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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403 views

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pymongo - mongodb $exists always returning 0

I have a database collection (named fols) like so: {'followers': { '123':1 '123':2 '123':3 } } If ... returns 0 even though there are 3 records. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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