import random

# generate 4 random digits from 1 to 9 without repetition
random_digits = random.sample(range(1, 10), 4)

# assign them to different variables
a, b, c, d = random_digits

print(a, b, c, d)

tcpdump -i any -s0 -vvv -w /home/Traces/name_%02d.pcap -C 50 -W 50 -G 21600 host 192.168.0.1

tcpdump -i any -s0 -vvv -w /home/Traces/name.pcap -C 50 host 192.168.0.1

def go_copy(self):
    self.disable_all_buttons()
    self.btnGo.configure(text = self.folder_source + ' >> ' + self.folder_target)
    self.update()

    for path, directories, files in sorted(os.walk(self.folder_source)):
        for file in sorted(files):
            if file.endswith('.mp3'):
                path_source = os.path.join(path, file)
                d = os.path.basename(self.folder_source)
                f = os.path.relpath(path_source, self.folder_source)
                path_target = os.path.join(self.folder_target, d, f)
                os.makedirs(os.path.dirname(path_target), exist_ok=True)
                shutil.copyfile(path_source, path_target)
    self.update()
    self.btnGo.configure(text='Let's go!')
    self.enable_all_buttons()

require_once('tcpdf.php');

$pdf = new TCPDF('P', 'cm', array(6, 4), true, 'UTF-8', false);

// ... your code to add content to the PDF ...

$pdf->Output('example.pdf', 'I');

var doc = new jsPDF('p', 'cm', [6, 4]);

// ... your code to add content to the PDF ...

doc.save('example.pdf');