如何在python中向mysql数据库插入返回值？

我试着为我的pi做一个项目。我想读取温度并将温度值插入数据库。我可以读取温度，但无法将其插入数据库。谁能告诉我哪里出了错？谢谢你的帮助。致以最良好的祝愿：

#!/usr/bin/python
# -*- coding: utf-8 -*-
import requests
import hashlib
import time
import MySQLdb
#Dont forget to fill in PASSWORD and URL TO saveTemp (twice) in this file

sensorids = ["28-00042d99c9ff", "28-00042d99c9ff"]
avgtemperatures = []
for sensor in range(len(sensorids)):
    temperatures = []
    for polltime in range(0,3):
            text = '';
            while text.split("\n")[0].find("YES") == -1:
                    # Open the file that we viewed earlier so that python can see what          is in it. Replace the serial number as before.
                    tfile = open("/sys/bus/w1/devices/"+ sensorids[sensor] +"/w1_slave")
                    # Read all of the text in the file.
                    text = tfile.read()
                    # Close the file now that the text has been read.
                    tfile.close()
                    time.sleep(1)

            # Split the text with new lines (\n) and select the second line.
            secondline = text.split("\n")[1]
            # Split the line into words, referring to the spaces, and select the 10th word (counting from 0).
            temperaturedata = secondline.split(" ")[9]
            # The first two characters are "t=", so get rid of those and convert the temperature from a string to a number.
            temperature = float(temperaturedata[2:])
            # Put the decimal point in the right place and display it.
            temperatures.append(temperature / 1000 )

    avgtemperatures.append(sum(temperatures) / float(len(temperatures)))

print avgtemperatures[0]
print avgtemperatures[1]



# Open database connection
db = MySQLdb.connect("my db-ip", "my user name", "my pass", "my db name" )

# prepare a cursor object using cursor() method
cursor = db.cursor()

# Prepare SQL query to INSERT a record into the database.
sql = "INSERT INTO temps(temp1,temp2) VALUES (avgtemperatures[0], avgtemperatures[1])" 
try:
   # Execute the SQL command
   cursor.execute(sql)
   # Commit your changes in the database
   db.commit()
except:
   # Rollback in case there is any error
   db.rollback()

# disconnect from server
db.close()

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假设“警告”是唯一的错误，那么只需要将python类型转换为SQL数据库的列类型。很可能，python类型的设置精度高于表中的列。这就是“截断”的意思。数据正在被切断。表的列类型是什么

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如果你打算做大量的数据库工作，我建议你使用SQL Alchemy或其他对象关系映射器，它们可以帮助你避免像这样的小不一致

运行此操作时会出现什么错误？这是错误消息，我的朋友。Temple.py:50:警告：第1行光标处的列“temp1”的数据被截断。executesql Temple.py:50:警告：第1行光标处的列“temp2”的数据被截断。executesql感谢您的快速回答，我的朋友。我的表数据类型是temp1 float、temp2 float、id int。我无法解决这个问题：我无法理解为什么我的代码没有运行。看起来是正确的。也许您应该尝试将列设置为十进制而不是浮点。