updated for the start

.gitignore

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+label/

app.py

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+import tkinter as tk
+from tkinter import simpledialog, messagebox
+from PIL import Image, ImageTk
+import barcode
+from barcode.writer import ImageWriter
+import cups
+import os
+
+def get_printers():
+    conn = cups.Connection()
+    return list(conn.getPrinters().keys())
+
+def print_label(printer_name, text):
+    # Generate barcode image
+    CODE128 = barcode.get_barcode_class('code128')
+    code = CODE128(text, writer=ImageWriter())
+    filename = code.save('label_barcode')
+    
+    # Create label image with text and barcode
+    barcode_img = Image.open(filename + '.png')
+    label_img = Image.new('RGB', (barcode_img.width, barcode_img.height + 40), 'white')
+    label_img.paste(barcode_img, (0, 0))
+    
+    # Add text below barcode
+    from PIL import ImageDraw, ImageFont
+    draw = ImageDraw.Draw(label_img)
+    font = ImageFont.load_default()
+    w, h = draw.textsize(text, font=font)
+    draw.text(((barcode_img.width - w) // 2, barcode_img.height + 10), text, fill='black', font=font)
+    
+    label_img.save('final_label.png')
+    
+    # Print using CUPS
+    conn = cups.Connection()
+    conn.printFile(printer_name, 'final_label.png', "Label Print", {})
+    os.remove(filename + '.png')
+    os.remove('final_label.png')
+
+def main():
+    root = tk.Tk()
+    root.withdraw()
+    
+    printers = get_printers()
+    if not printers:
+        messagebox.showerror("Error", "No printers found.")
+        return
+    
+    printer = simpledialog.askstring("Printer", f"Available printers:\n{printers}\nEnter printer name:")
+    if printer not in printers:
+        messagebox.showerror("Error", "Invalid printer selected.")
+        return
+    
+    text = simpledialog.askstring("Label Text", "Enter text for the label:")
+    if not text:
+        messagebox.showerror("Error", "No text entered.")
+        return
+    
+    print_label(printer, text)
+    messagebox.showinfo("Done", "Label sent to printer.")
+
+if __name__ == "__main__":
+    main()

how_to.txt

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+install 
+
+sudo apt-get install libcups2-dev
+
+
+create venv or install with --breack-system-pakage
+
+
+python -m venv label 
+
+pip install -r requirements.txt

requirements.txt

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+python-barcode 
+pillow 
+pycups