import psycopg2
import turtle

conn=psycopg2.connect("dbname=guest user=guest password=guest")
cur=conn.cursor()

centrox=-8.6223466370208

centroy=41.1603709427206

cur.execute("select st_x(st_transform(location,3763)),st_y(st_transform(location,3763)) from taxi_stands;")
row=cur.fetchone()


turtle.clear()
while(row is not None):
    print(row)
    turtle.pendown()
    turtle.goto(row[0]-centrox,row[1]-centroy)
    turtle.penup()
    row=cur.fetchone()


'''
while row is not None:
    print(row)
    row=cur.fetchone()
'''
cur.close()