import sys
import pymysql
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
con = pymysql.connect(
        host=host,
        port=3306,
        user=user,
        password=password,
        db="test",
        charset='utf8mb4')
cur = con.cursor()
with open('woman.jpg', "rb") as f:
    img_data = f.read()
    binary = pymysql.Binary(img_data)
    cur.execute("INSERT INTO Images(Data) VALUES (%s)", (binary,))
    con.commit()
app = QApplication([])
w = QWidget()
layout = QVBoxLayout()
w.setLayout(layout)
cur.execute("SELECT Data FROM Images")
d = cur.fetchall()
for (img_data,) in d:
    pixmap = QPixmap()
    pixmap.loadFromData(img_data)
    label = QLabel()
    label.setPixmap(pixmap)
    layout.addWidget(label)
w.show()