cnpj-gen 1.0.1

Utility function to generate valid CNPJ (Brazilian employer ID)

Utility function/class to generate valid CNPJ (Brazilian employer ID).

Python Support

Passing ✔	Passing ✔	Passing ✔	Passing ✔	Passing ✔

Installation

$ pip install cnpj-gen

Import

# Using class-based resource
from cnpj_gen import CnpjGenerator

# Or using function-based one
from cnpj_gen import cnpj_gen

Usage

Object-Oriented Usage

generator = CnpjGenerator()
cnpj = generator.generate()  # returns '65453043000178'

# With options
cnpj = generator.generate(
    format=True
)  # returns '65.453.043/0001-78'

cnpj = generator.generate(
    prefix='45623767'
)  # returns '45623767000296'

cnpj = generator.generate(
    prefix='456237670002',
    format=True
)  # returns '45.623.767/0002-96'

The options can be provided to the constructor or the generate() method. If passed to the constructor, the options will be attached to the CnpjGenerator instance. When passed to the generate() method, it only applies the options to that specific call.

generator = CnpjGenerator(format=True)

cnpj1 = generator.generate()  # '65.453.043/0001-78' (uses instance options)
cnpj2 = generator.generate(format=False)  # '65453043000178' (overrides instance options)
cnpj3 = generator.generate()  # '12.345.678/0001-95' (uses instance options again)

Functional programming

The helper function cnpj_gen() is just a functional abstraction. Internally it creates an instance of CnpjGenerator and calls the generate() method right away.

cnpj = cnpj_gen()  # returns '65453043000178'

cnpj = cnpj_gen(format=True)  # returns '65.453.043/0001-78'

cnpj = cnpj_gen(prefix='45623767')  # returns '45623767000296'

cnpj = cnpj_gen(prefix='456237670002', format=True)  # returns '45.623.767/0002-96'

Generator Options

Parameter	Type	Default	Description
format	bool | None	False	Whether to format the output with dots, slash, and dash
prefix	str | None	''	If you have CNPJ initials and want to complete it with valid digits. The string provided must contain between 0 and 12 digits. The branch ID (characters 8 to 11) cannot be "0000".

Contribution & Support

We welcome contributions! Please see our Contributing Guidelines for details. But if you find this project helpful, please consider:

• ⭐ Starring the repository
• 🤝 Contributing to the codebase
• 💡 Suggesting new features
• 🐛 Reporting bugs

License

This project is licensed under the MIT License - see the LICENSE file for details.

Changelog

See CHANGELOG for a list of changes and version history.

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