import os
import time
import pymysql
import csv

db_config = {
    'host': 'db',
    'user': os.getenv('MYSQL_USER'),
    'password': os.getenv('MYSQL_PASSWORD'),
    'db': os.getenv('MYSQL_DATABASE'),
}

while True:
    print("Try connect to db")
    try:
        connection = pymysql.connect(**db_config)
        break
    except pymysql.MySQLError:
        time.sleep(3)

print("")

with connection.cursor() as cursor, open('data.csv', 'r') as csv_file:
    reader = csv.DictReader(csv_file)
    for row in reader:
        cursor.execute("INSERT INTO data (name, age) VALUES (%s, %s)", (row['name'], row['age']))
    connection.commit()

with connection.cursor() as cursor:
    cursor.execute("SELECT * FROM data")
    for row in cursor.fetchall():
        print(row)