help

Hello
I use Dateframe to_sql to write records to a postgresql DB 9.6 , It can create the table 'Test_stock_basic_Info_2' ,but the records cannot be wrote into the table 'Test_stock_basic_Info_2'

the following is the code , is there any errors of the code ???

thanks for your help .

def testSQL():
import psycopg2
import pandas as pd
from sqlalchemy import create_engine

try:
engine = create_engine('postgresql+psycopg2://pub:pub(at)localhost/Wind_Quote')

#conn=engine.raw_connection()

#cur = conn.cursor()

df = pd.DataFrame()

df['stock_code']='0000'
df['ipo_date'] ='2015-01-07'
df['sec_name'] ='11111111'
df['trade_code'] ='22222222222'


try :
df.to_sql(name='Test_stock_basic_Info_2', con=engine,if_exists='replace',index=False)
#conn.commit()
#cur.execute('COMMIT')
except Exception as e:
print ( time.strftime('At [%Y-%m-%d %H:%M:%S]', time.localtime(time.time())),": index_data: Exception :" , (e) )

except Exception as e:
print ( time.strftime('At [%Y-%m-%d %H:%M:%S]', time.localtime(time.time())),": program: Exception :" , (e) )

print('Finished ...')