Python使用pymysql返回字典类型的数据

import pymysql
import time

# 数据库
db = ""
cur = ""
# 现在年月日
today = time.strftime("%Y-%m-%d", time.localtime())
try:
  # 数据库配置
  config = {
    
    
    "host": "124.71.18.23", 
    "port": 3306, 
    "user": "root", 
    "password": "Master@test", 
    "db": 'scrapy', 
    "charset": "utf8mb4"
  }
  db = pymysql.connect(**config)
  # 游标
  cur = db.cursor()
except:
  print("连接数据库失败")
  exit(-1)


# 查询今天之后的所有天气数据
def get_day_list(date):
  sql_weather_days = "SELECT*FROM weather WHERE date>='" + date + "'"
  cur.execute(sql_weather_days)
  dayList = cur.fetchall()
  print(dayList)
  pass


get_day_list(today)

结果

(
(448, '周六 06', '2021-02-06', '--', '5°', 'Mostly Clear Night', datetime.datetime(2021, 2, 6, 23, 0, 11)), 
(449, '周日 07', '2021-02-07', '19°', '7°', 'Mostly Sunny', datetime.datetime(2021, 2, 6, 23, 0, 11)), 
(450, '周一 08', '2021-02-08', '9°', '3°', 'Mostly Cloudy', datetime.datetime(2021, 2, 6, 23, 0, 11)), 
(451, '周二 09', '2021-02-09', '12°', '7°', 'Partly Cloudy', datetime.datetime(2021, 2, 6, 23, 0, 11)), 
(452, '周三 10', '2021-02-10', '15°', '10°', 'Cloudy', datetime.datetime(2021, 2, 6, 23, 0, 11))
)

这样，读取起来不是很方便，那么如何返回字典的数据格式的数据呢？

在默认情况下cursor方法返回的是BaseCursor类型对象，BaseCursor类型对象在执行查询后每条记录的结果以列表(list)表示。如果要返回字典(dict)表示的记录，就要设置cursorclass参数为MySQLdb.cursors.DictCursor类

import pymysql
import time

# 数据库
db = ""
cur = ""
# 现在年月日
today = time.strftime("%Y-%m-%d", time.localtime())
try:
  # 数据库配置
  config = {
    
    
    "host": "124.71.18.23", 
    "port": 3306, 
    "user": "root", 
    "password": "Master@test", 
    "db": 'scrapy', 
    "charset": "utf8mb4",
    "cursorclass": pymysql.cursors.DictCursor
  }
  db = pymysql.connect(**config)
  # 游标
  cur = db.cursor()
except:
  print("连接数据库失败")
  exit(-1)


# 查询今天之后的所有天气数据
def get_day_list(date):
  sql_weather_days = "SELECT*FROM weather WHERE date>='" + date + "'"
  cur.execute(sql_weather_days)
  dayList = cur.fetchall()
  print(dayList)
  pass


get_day_list(today)

结果

[
{
    
    'id': 448, 'name': '周六 06', 'date': '2021-02-06', 'max': '--', 'min': '5°', 'status': 'Mostly Clear Night', 'create_time': datetime.datetime(2021, 2, 6, 23, 0, 11)}, 
{
    
    'id': 449, 'name': '周日 07', 'date': '2021-02-07', 'max': '19°', 'min': '7°', 'status': 'Mostly Sunny', 'create_time': datetime.datetime(2021, 2, 6, 23, 0, 11)}, 
{
    
    'id': 450, 'name': '周一 08', 'date': '2021-02-08', 'max': '9°', 'min': '3°', 'status': 'Mostly Cloudy', 'create_time': datetime.datetime(2021, 2, 6, 23, 0, 11)}, 
{
    
    'id': 451, 'name': '周二 09', 'date': '2021-02-09', 'max': '12°', 'min': '7°', 'status': 'Partly Cloudy', 'create_time': datetime.datetime(2021, 2, 6, 23, 0, 11)}, 
{
    
    'id': 452, 'name': '周三 10', 'date': '2021-02-10', 'max': '15°', 'min': '10°', 'status': 'Cloudy', 'create_time': datetime.datetime(2021, 2, 6, 23, 0, 11)}
]

Python使用pymysql返回字典类型的数据

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