Learn Python Coding

✨ ast | Python Standard Library ✨ 📖 Provides functionality to work with Abstract Syntax Trees (ASTs). 🏷️ #Python

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Build and Automate Django CRM #Django #CRM #PYTHON

✨ thread | Python Glossary ✨ 📖 A separate flow of execution within a program. 🏷️ #Python

Creating Barcodes in Python! Barcode generation can be easily automated using the 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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✨ Quiz: GeoPandas Basics: Maps, Projections, and Spatial Joins ✨ 📖 Test GeoPandas basics for reading, mapping, projecting, and spatial joins to handle geospatial data confidently. 🏷️ #intermediate #data-science

✨ cProfile | Python Standard Library ✨ 📖 Provides a way to measure where time is being spent in your application. 🏷️ #Python

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✨ wildcard import | Python Glossary ✨ 📖 An import uses the star syntax to pull many names into your current namespace at once. 🏷️ #Python

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✨ transitive dependency | Python Glossary ✨ 📖 An indirect requirement of your project. 🏷️ #Python

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This channels is for Programmers, Coders, Software Engineers. 0️⃣ Python 1️⃣ Data Science 2️⃣ Machine Learning 3️⃣ Data Visualization 4️⃣ Artificial Intelligence 5️⃣ Data Analysis 6️⃣ Statistics 7️⃣ Deep Learning 8️⃣ programming Languages ✅ https://t.me/addlist/8_rRW2scgfRhOTc0 ✅ https://t.me/Codeprogrammer

✨ GeoPandas Basics: Maps, Projections, and Spatial Joins ✨ 📖 Dive into GeoPandas with this tutorial covering data loading, mapping, CRS concepts, projections, and spatial joins for intuitive analysis. 🏷️ #intermediate #data-science

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