psycopg2用python生成一些数据插入pg数据库

from name_dict import name  
from city_dict import city
from random import choice,randint
from datetime import date
import psycopg2 as pg

conn=pg.connect(database='school',user='jm',password='123',host='127.0.0.1',port='5432')
cur=conn.cursor()


date1=date(1975,1,1)
date2=date(1977,12,31)
days=(date2-date1).days

class_x=['1班','2班','3班','4班','5班','6班','7班','8班']
k1=k2=k3=k4=k5=k6=k7=k8=0  #每班学生不超过50人

  
for i in range(1000):

    #=====省市============
    省=choice(list(city.keys()))
    市=choice(city[省])
    if 省=='直辖市':
        省=choice(city['直辖市'])
        市=省
    if 省=='特别行政区':
        省=choice(city['特别行政区'])
        市=省
    
    #=====姓名=========
    性别=choice(['男','女'])
    if 性别=='男':
        姓名=choice(name['姓'])+choice(name['男名'])
    else:
        姓名=choice(name['姓'])+choice(name['女名'])
    
    #=====生日=========
    生日=date1+date.resolution*randint(0,days)
    
    #=====班级=========
    班级=choice(class_x)
    if 班级=='1班' :
        k1+=1
        if k1==50:
            class_x.remove('1班') 
    elif  班级=='2班' :
        k2+=1
        if k2==50:
            class_x.remove('2班')
    elif 班级=='3班' :
        k3+=1
        if k3==50:
            class_x.remove('3班')
    elif 班级=='4班' :
        k4+=1
        if k4==50:
            class_x.remove('4班')
    elif 班级=='5班' :
        k5+=1
        if k5==50:
            class_x.remove('5班')
    elif 班级=='6班' :
        k6+=1
        if k6==50:
            class_x.remove('6班')
    elif 班级=='7班' :
        k7+=1
        if k7==50:
            class_x.remove('7班')
    elif 班级=='8班' :
        k8+=1
        if k8==50:
            class_x.remove('8班')
    if len(class_x)==0:
        break

    #插入数据到数据库中
    cur.execute('insert into student_basic\d(姓名,性别,班级,省,市,生日) values(%s,%s,%s,%s,%s,%s)',(姓名,性别,班级,省,市,生日))

conn.commit()
cur.close()
conn.close()
print('ok')