Python3: MongoDB のデータを読む (Read)

プログラム

フォルダー構造

$ tree -a
.
├── .env
├── config_mariadb.py
└── mongo_read.py

mongo_read.py

#! /usr/bin/python
#
#	mongo_read.py
#
#					Mar/01/2023
import sys
import pymongo
#
from config_mariadb import config_mariadb_proc
# -------------------------------------------------------------------
sys.stderr.write ("*** 開始 ***\n")
#
host,user,password,data_base = config_mariadb_proc()
collection='saitama'
#
client = pymongo.MongoClient(host,username=user,password=password,
			authSource=data_base,authMechanism='SCRAM-SHA-256')
#
db = client[data_base]
# db = client.city
collection = db[collection]
#
for data in collection.find():
#	print(data)
	str_out = data["key"] + "\t" + data["name"] + "\t"
	str_out += str(data["population"]) + "\t" + data["date_mod"]
	print(str_out)
#
sys.stderr.write ("*** 終了 ***\n")
# -------------------------------------------------------------------

.env
config_mariadb.py
はこちら
Python3: MongoDB のデータを作成 (Create)

実行結果

$ ./mongo_read.py
*** 開始 ***
t1161	さいたま	52913	2003-8-20
t1162	所沢	17465	2003-2-10
t1163	越谷	91654	2003-7-14
t1164	久喜	53672	2003-9-9
t1165	熊谷	42391	2003-8-4
t1166	秩父	35187	2003-1-21
t1167	川越	81946	2003-7-23
t1168	和光	29714	2003-10-16
t1169	新座	41823	2003-12-25
*** 終了 ***