A label and barcode printing program in Python: product labels with codes laid out on your sheet, ready to print

Example result

def update_total(self, *_):
    """Adds up the lines and the tax and shows the total under the table."""
    subtotal = sum(line.hours * line.rate for line in self.lines)
    tax = round(subtotal * self.tax_rate.get() / 100, 2)
    self.subtotal_label.config(text=f"Subtotal: {subtotal:,.2f}")
    self.tax_label.config(text=f"Tax: {tax:,.2f}")
    self.total_label.config(text=f"Total: {subtotal + tax:,.2f}")

About this service

For shops, small warehouses and makers who put price tags, product labels or shelf labels on goods. The program lays out labels with the text you choose, such as name, price, size or batch, and a barcode in a common format such as Code 128 or EAN-13, on a sheet the size of your label paper, and saves it as a PDF or picture that you print from your usual viewer. From Standard it reads your product list, remembers label sizes and makes sheets from the rows you pick; Premium adds more layouts, file exports and an error log. We write it in Python with Tkinter plus one or two small libraries for barcodes and PDF, which the README shows how to install. The barcode numbers are yours: we do not issue or register codes and do not set up printer drivers.

What is included

• What you getA ZIP archive with the Python code, a README on installing Python and the libraries, running the program and building an .exe, and an example product file; the code is also shown on the order page. From Standard, products and label sizes kept in CSV or SQLite; in Premium, several layouts, exports and an error log.
• BarcodesCode 128, EAN-13 or another common format
• Your label sizeLaid out for your sheets or roll
• From your product listPick rows and make a sheet, from Standard
• Print as usualA PDF or picture through your printer
• Readable codeWith comments, easy to change later

How it works

1. 1
   TaskYou send the label size, contents and barcode format
2. 2
   CodeWe write the program and the README
3. 3
   Try itYou print a test sheet and scan the codes
4. 4
   ChangesYou ask for changes within your package and send any error message

What we need from you

The size of your labels and sheets or roll and which label printer you have; what each label shows; the barcode format and where the numbers come from; a few rows of your product list as CSV or Excel; a photo or sketch of a label you like; your system (Windows, macOS or Linux) and whether you want an .exe.

We will ask you:

• Label size and paper
• What goes on a label?
• Barcode format
• Your product list
• Which system will it run on?

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Questions and answers

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