在 QtableWidget 中显示来自数据库的数据

Question

我有这个代码 gui QtableWidget

from PyQt4.QtCore import *

from PyQt4.QtGui import *
import sys
data = {'col1':['1','2','3'], 'col2':['4','5','6'], 'col3':['7','8','9']}

class MyTable(QTableWidget):
def __init__(self, data, *args):
    QTableWidget.__init__(self, *args)
    self.data = data
    self.setmydata()
    self.resizeColumnsToContents()
    self.resizeRowsToContents()

def setmydata(self):

    horHeaders = []
    for n, key in enumerate(sorted(self.data.keys())):
        horHeaders.append(key)
        print key
        for m, item in enumerate(self.data[key]):
            newitem = QTableWidgetItem(item)
            self.setItem(m, n, newitem)
    self.setHorizontalHeaderLabels(horHeaders)

def main(args):
app = QApplication(args)
table = MyTable(data, 5, 3)
table.show()
  sys.exit(app.exec_())

if __name__=="__main__":
main(sys.argv)

谁展示了这个我有这个代码

import psycopg2
conn = psycopg2.connect(database="sammy", user="postgres", password="a",      host="localhost", port="5432")
print "Opened database successfully"
cur = conn.cursor()
cur.execute("SELECT * from conn")
rows = cur.fetchall()
for row in rows:
   print "ID = ", row[0]
   print "NAME = ", row[1]
   print "password = ", row[2] ,"\n"

谁从数据库显示此数据

我是 python 的初学者我想在 QtableWidget 中显示秒数据我应该在第一个代码中更改什么以显示数据或其他方式

非常感谢

Answer 1

[您可以根据 SQL 结果构建数据字典。只需模仿示例中的列表字典

import psycopg2
conn = psycopg2.connect(database="sammy", user="postgres", password="a",      host="localhost", port="5432")
print "Opened database successfully"
cur = conn.cursor()
cur.execute("SELECT * from conn")
rows = cur.fetchall()

ID,NAME,password = [],[],[]
for row in rows:
   ID = ID + [row[0]]
   NAME = NAME + [row[1]]
   password = password + [row[2]]

然后修改QTableWidget代码

data = {'col1':['1','2','3'], 'col2':['4','5','6'], 'col3':['7','8','9']}
成为
data = {'ID':ID, 'NAME':NAME, 'password':password}

在 QtableWidget 中显示来自数据库的数据

Display data from data base in QtableWidget

python

postgresql

qtablewidget