PyQt

from random import randint n = int(input("Введите строку: ")) m = int(input("Введите столбец: ")) matrix= [[randint(-20,20) for j in range(n)] for i in range(n)] for row in matrix:   print(*row) sum_m = 0 sum_secon = 0 for i in range(n):   sum_m += matrix[i][i]   sum_secon += matrix[i][n-i-1] print(sum_m) print(sum_secon) def sum_perimeter(matrix):   perimeter_sum = 0   for i in range(len(matrix)):    for j in range(len(matrix[0])):    if i == 0 or i == len(matrix) - 1 or j == 0 or j == len(matrix[0]) - 1:    perimeter_sum += matrix[i][j]   return perimeter_sum print(sum_perimeter(matrix))

from PyQt5 import QtCore, QtGui, QtWidgets, QtPrintSupport conn = sqlite3.connect('prac.db') coursor = conn.cursor() coursor.execute("Select * from Kafedra") result = coursor.fetchall() conn.commit() conn.close()

class PrintList:   def __init__(self) :    self.printer = QtPrintSupport.QPrinter()    self.headerFont = QtGui.QFont("Arial", pointSize=10,    weight = QtGui.QFont.Bold)    self.bodyFont = QtGui.QFont("Arial", pointSize=10)    self.footerFont = QtGui.QFont("Arial", pointSize=9, italic=True)    self.headerFlags = QtCore.Qt.AlignHCenter | QtCore.Qt.TextWordWrap    self.bodyFlags = QtCore.Qt.TextWordWrap    self.footerFlags = QtCore.Qt.AlignHCenter | QtCore.Qt.TextWordWrap    color = QtGui.QColor(QtCore.Qt.black)    self.headerPen = QtGui.QPen(color, 2)    self.bodyPen = QtGui.QPen(color, 1)    self.margin = 5    self._resetData()   def _resetData(self):    self.headers = None    self.columnWidths = None    self.data = None    self._brush = QtCore.Qt.NoBrush    self._currentRowHeight = 0    self._currentPageHeight = 0    self._headerRowHeight = 0    self._footerRowHeight = 0    self._currentPageNumber = 1    self._painter = None   def printData(self):    self._painter = QtGui.QPainter()    self._painter.begin(self.printer)    self._painter.setBrush(self._brush)    if self._headerRowHeight == 0:    self._painter.setFont(self.headerFont)    self._headerRowHeight = self._calculateRowHeight(self.columnWidths, self.headers)    if self._footerRowHeight == 0:    self._painter.setFont(self.footerFont)    self._footerRowHeight = self._calculateRowHeight([self.printer.width()], "Страница")    for i in range(len(self.data)):    height = self._calculateRowHeight(self.columnWidths, self.data[i])    if self._currentPageHeight + height > self.printer.height() - self._footerRowHeight - 2 * self.margin:    self._printFooterRow()    self._currentPageHeight = 0    self._currentPageNumber += 1    self.printer.newPage()    if self._currentPageHeight == 0:    self._painter.setPen(self.headerPen)    self._painter.setFont(self.headerFont)    self.printRow(self.columnWidths, self.headers,    self._headerRowHeight, self.headerFlags)    self._painter.setPen(self.bodyPen)    self._painter.setFont(self.bodyFont)    self.printRow(self.columnWidths, self.data[i],    height, self.bodyFlags)    self._printFooterRow()    self._painter.end()    self._resetData()   def _calculateRowHeight(self, widths, cellData):    height = 0    for i in range(len(widths)):    r = self._painter.boundingRect(0, 0, widths[i] -    2 * self.margin, 50, QtCore.Qt.TextWordWrap,    str(cellData[i]))    h = r.height() + 2 * self.margin    if height < h:    height = h    return height   def printRow(self, widths, cellData, height, flags):    x = 0    for i in range(len(widths)):    self._painter.drawText(x + self.margin,    self._currentPageHeight + self.margin,    widths[i] - self.margin, height - 2 * self.margin,    flags, str(cellData[i]))    self._painter.drawRect(x, self._currentPageHeight,    widths[i], height)    x += widths[i]    self._currentPageHeight += height   def _printFooterRow(self):    self._painter.setFont(self.footerFont)    self._painter.drawText(self.margin, self.printer.height() -    self._footerRowHeight - self.margin, self.printer.width() -    2 * self.margin, self._footerRowHeight - 2 * self.margin,    self.footerFlags, "Страница " + str(self._currentPageNumber)) data = result[0:]    p1 = PrintList()    p1.printer.setOutputFileName("output.pdf")    print(3)    p1.data = data    p1.columnWidths = [100,350,200]    p1.headers = ["Код кафедры","Наименование", "Заведующий"]    p1.printData()    print(3)