[英]Mongo query in python if I use variable as value
Am trying to find documents from the mongo collection using the following query. 我正在尝试使用以下查询从mongo集合中查找文档。 db.collection_name.find({"id" : Id})
where Id is the variable am getting as input. db.collection_name.find({"id" : Id})
,其中id是作为输入的变量。 But it doesn't work. 但这是行不通的。 If I hard code the value like this db.collection_name.find({"id" : "1a2b"})
it works. 如果我对db.collection_name.find({"id" : "1a2b"})
这样的值进行硬编码,则它可以工作。 "id" is of string type and am using pymongo to access mongo DB. “ id”是字符串类型,正在使用pymongo访问mongo DB。
code : 代码:
client = MongoClient("localhost:27017")
db = client['sample_database']
Id = raw_input("enter id")
cursor = db.collection_name.find({"id" : Id})
Try str(); 尝试str();
Id = str(raw_input("enter id"))
cursor = db.collection_name.find({"id" : Id})
This may help you..in python3 it is working.. 这可能会帮助您..在python3中它正在工作..
Id = raw_input("enter id: ")
cursor = db.collection_name.find({"id" : Id})
for i in cursor:
print(i)
there is no require to convert raw_input() to string,Because raw_input() is already get input from user as string.. 不需要将raw_input()转换为字符串,因为raw_input()已作为字符串从用户那里获取输入。
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