我想写一个函数在mongodb中返回mycollection中包含的所有文档

from pymongo import MongoClient

if __name__ == '__main__':
    client = MongoClient("localhost", 27017, maxPoolSize=50)
    db=client.mydatabase
    collection=db['mycollection']
    cursor = collection.find({})
    for document in cursor:
        print(document)

然而，函数返回:Process finished with exit code 0

最佳答案

这是从命令提示符运行时可以正常运行的示例代码。

from pymongo import MongoClient

if __name__ == '__main__':
    client = MongoClient("localhost", 27017, maxPoolSize=50)
    db = client.localhost
    collection = db['chain']
    cursor = collection.find({})
    for document in cursor:
          print(document)

请检查集合名称。

https://stackoverflow.com/questions/37941610/