sqlite3.OperationalError：没有这样的列：

这是一个非常基本的问题，我知道此代码存在安全性问题，除其他问题外，还应使用参数化条目-这是一项正在进行的工作。我正在尝试为项目设置构建用户注册模块。我已经建立了一个表，其中第一列用作具有主键约束的ID，但是在运行代码时，出现以下错误，并且不确定为什么-（如果它与p_ID列有关）：

Traceback (most recent call last):
  File "user.py", line 72, in <module>
    userSignUp()
  File "user.py", line 68, in userSignUp
    c.execute("INSERT INTO People VALUES(userName, password, confirmPassword,   firstName,lastName, companyName, email, phoneNumber,addressLine1, addressLine2, addressLine3, zipCode, province, country, regDate)")
sqlite3.OperationalError: no such column: userName

代码是：

import sqlite3
import datetime


path = "/Users/workhorse/thinkful/"
db = "apartment.db"

def checkAndCreateDB():
    #not checking for some reason
    #fullPath = os.path.join(path, db)
    #if os.path.exists(fullPath):
    #   print "Database Exists"
    #else:
    connection = sqlite3.connect(db)
    print "Creating database"
    createUserRegTable()

def createUserRegTable():
    with sqlite3.connect(db) as connection:
        c = connection.cursor()
        c.execute("""CREATE TABLE People
        (p_ID INTEGER PRIMARY KEY AUTOINCREMENT,
        userName TEXT NOT NULL UNIQUE,
        password TEXT NOT NULL,
        confirmPassword TEXT NOT NULL,
        firstName TEXT NOT NULL,
        lastName TEXT NOT NULL,
        companyName TEXT NOT NULL,
        email TEXT NOT NULL UNIQUE,
        phoneNumber TEXT NOT NULL,
        addressLine1 TEXT NOT NULL,
        addressLine2 TEXT,
        addressLine3 TEXT,
        zipCode TEXT NOT NULL,
        province TEXT NOT NULL,
        country TEXT NOT NULL,
        regDate DATE NOT NULL)
        """)
        print "table made"


def userSignIn():
    pass

def userSignUp():
    userName = raw_input("Enter a user name: ")
    password = raw_input("Enter a password: ")
    confirmPassword = raw_input("Confirm Your Password: ")
    firstName = raw_input("Enter your first name: ")
    lastName = raw_input("Enter your last name: ")
    companyName = raw_input("Enter your company name: ")
    email = raw_input("Enter your email: ")
    phoneNumber = raw_input("Enter your phone number: ")
    addressLine1 = raw_input("Enter your address: ")
    addressLine2 = raw_input("Enter second line of your address (Not Required): ")
    addressLine3 = raw_input("Enter third line of your address (Not Required): ")
    zipCode = raw_input("Enter your zip code: ")
    province = raw_input("Enter your state or province: ")
    country = raw_input("Enter your country: ")
    regDate = datetime.date.today()
    print regDate

    #userInfo = (userName, password, confirmPassword, firstName,lastName, companyName, email, phoneNumber,addressLine1,
    #addressLine2, addressLine3, zipCode, province, country, regDate)

    with sqlite3.connect(db) as connection:
        c = connection.cursor()
        c.execute("INSERT INTO People VALUES(userName, password, confirmPassword, firstName,lastName, companyName, email, phoneNumber,addressLine1, addressLine2, addressLine3, zipCode, province, country, regDate)")

checkAndCreateDB()

userSignUp()

非常感谢