Learn Python Coding
Learn Python through simple, practical examples and real coding ideas. Clear explanations, useful snippets, and hands-on learning for anyone starting or improving their programming skills. Admin: @HusseinSheikho || @Hussein_Sheikho
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“Learn Python through simple, practical examples and real coding ideas. Clear explanations, useful snippets, and hands-on learning for anyone starting or improving their programming skills.
Admin: @HusseinSheikho || @Hussein_Sheikho”
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python-barcode library.
First, install the library itself and the dependency for image generation:
pip install python-barcode pillow
The Pillow library is used to save in PNG format via ImageWriter.
Import the main module and writer for working with images:
import barcode
from barcode.writer import ImageWriter
Let's create an EAN-13 barcode. Important: exactly 12 digits are passed, and the check digit is automatically calculated and added.
ean = barcode.get(
"ean13",
"590123412345",
writer=ImageWriter()
)
Save it to disk:
filename = ean.save("product_barcode")
print(filename)
As a result, the product_barcode.png file will be created in the current directory.
Generating several barcodes: a common scenario is generating a series of barcodes, for example for a list of products or database records:
codes = [
"123456789012",
"987654321098",
"111222333444"
]
for value in codes:
code_obj = barcode.get(
"ean13",
value,
writer=ImageWriter()
)
code_obj.save(f"barcode_{value}")
Here, it's also important to comply with the format requirement: 12 digits for EAN-13, otherwise the library will throw an exception.
If you need to encode arbitrary strings (order numbers, documents), it's more convenient to use Code128:
code128 = barcode.get(
"code128",
"ORDER-2025-001",
writer=ImageWriter()
)
code128.save("order_barcode")
This format is not limited to numbers and is widely used in logistics and document management.
In practice, generation is often outsourced to a function - for reuse in services or APIs:
def generate_barcode(value, filename):
code = barcode.get(
"code128",
value,
writer=ImageWriter()
)
return code.save(filename)
generate_barcode("INVOICE-4587", "invoice_4587")
🔥 This approach is convenient to scale and supplement with logic (validation, writer settings, saving paths in the database, etc.).
👉 @DataScience4
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