Александр

• 2 == 3 -> False
  
• False or 4 -> 4
  
• bool(4) -> True
  
• Результат: True
  

• 3 == 3 -> True
  
• True or 4 -> True
  
• Результат: True
  

• 6 == 3 -> False
  
• False or 4 -> 4
  
• bool(4) -> True
  
• Результат: True
  

• 2 == 3 -> False
  
• 2 == 4 -> False
  
• False or False
  
• Результат: False
  

• 3 == 3 -> True
  
• 3 == 4 -> False
  
• True or False -> True
  
• Результат: True
  

import matplotlib.pyplot as plt
plt.figure(1)
plt.plot([1,2,3,4])
plt.tick_params(axis='both', which='major', labelsize=16)
plt.show()

import sys

from PyQt5.Qt import QVBoxLayout, QLabel, QDialog, QDialogButtonBox, Qt
from PyQt5.QtGui import QIcon
from PyQt5.QtWidgets import QMainWindow, QAction, qApp, QApplication


class InfoDialog(QDialog):

    def __init__(self, info_str, parent=None):
        super(InfoDialog, self).__init__(parent)

        layout = QVBoxLayout(self)
        layout.addWidget(QLabel(info_str))

        buttons = QDialogButtonBox(QDialogButtonBox.Ok, Qt.Horizontal, self)
        buttons.accepted.connect(self.accept)

        layout.addWidget(buttons)


class Example(QMainWindow):
    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):
        exitAction = QAction(QIcon('RM.png'), 'Exit', self)
        exitAction.setShortcut('Ctrl+Q')
        exitAction.triggered.connect(qApp.quit)

        infoAction = QAction(QIcon(), "Info", self)
        infoAction.triggered.connect(self.onInfoAction)

        self.toolbar = self.addToolBar('Exit')
        self.toolbar.addAction(exitAction)
        self.toolbar.addAction(infoAction)

        self.setGeometry(300, 300, 300, 200)
        self.setWindowTitle('Toolbar')
        self.show()

    def onInfoAction(self):
        w = InfoDialog("Some information", self)
        w.exec_()


if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())

import numpy as np
array1 = np.arange(5*5).reshape(5, 5)
print(np.fft.fft2(array1))
t = np.sin(np.linspace(0, np.pi, 100))
array2 = np.vstack([t,t])
print(np.fft.fft2(array2))

firstNames = ["Tom", "Maria", "James"]
for e in emploee:
    if e["firstname"] not in firstNames:
        print(e["firstname"], " - лишний!")

import zipfile
f = zipfile.ZipFile('test.zip')
finfo = f.filelist[0]
finfo.filename = 'new_file_name.pdf'
f.extract(finfo)

from mutagen.mp3 import MP3
f = MP3('test.mp3')
print(f.info.length)