Error reading mongo data

from scrapy.http.headers import Headers
from Espider.tools.get_cookies import get_cookies
import pymongo


class united_middleware():

    def __init__(self, mongodbHost, mongodbPort, mongodbName):
        self.mongodbHost = mongodbHost
        self.mongodbPort = mongodbPort
        self.mongodbName = mongodbName

    @classmethod
    def from_crawler(cls, crawler):
        return cls(mongodbHost=crawler.settings.get("MONGODB_HOST"), mongodbPort=crawler.settings.get("MONGODB_PORT"),
                   mongodbName=crawler.settings.get("MONGODB_DBNAME"))

    def process_request(self, request, spider):
        self.mongodb = pymongo.MongoClient(self.mongodbHost, self.mongodbPort)

        self.totalcollection = self.mongodb[spider.name + "_cookie"]
        self.cookies_str = list(self.totalcollection.find())
        print("")
        print(self.cookies_str)
        self.headers = {
            "User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36",
            "cookie": self.cookies_str}

        if "finance?asEncryptedTs" in request.url or "member?asEncryptedTs" in request.url:
            request.headers = Headers(self.headers)

        else:
            request.cookies = get_cookies(self.cookies_str)
            request.headers.setdefault("User-Agent",
                                       "Mozilla/5.0 (Windows NT 6.0) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.36 Safari/536.5")
                                       
                                       
 Collection" object is not callable. If you meant to call the "find" method on a "Database" object it is failing because no such method exist??
 
 
 python 

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Jan.25,2022
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1ebf4f6-2a3d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1ebf4f6-2a3d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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