A Command-Line Interface framework
Project description
Knack
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A Command-Line Interface framework
Installation is easy via pip:
pip install knack
Knack can be installed as a non-privileged user to your home directory by adding “–user” as below:
pip install knack --user
Note
The project is in initial development phase. We recommend pinning to at least a specific minor version when marking knack as a dependency in your project.
Usage
import sys from collections import OrderedDict from knack import CLI, ArgumentsContext, CLICommandsLoader from knack.commands import CommandGroup def abc_str(length=3): import string return string.ascii_lowercase[:length] class MyCommandsLoader(CLICommandsLoader): def load_command_table(self, args): with CommandGroup(self, 'abc', '__main__#{}') as g: g.command('str', 'abc_str') return OrderedDict(self.command_table) def load_arguments(self, command): with ArgumentsContext(self, 'abc str') as ac: ac.argument('length', type=int) super(MyCommandsLoader, self).load_arguments(command) mycli = CLI(cli_name='mycli', commands_loader_cls=MyCommandsLoader) exit_code = mycli.invoke(sys.argv[1:]) sys.exit(exit_code) # $ python mycli.py abc str # "abc" # $ python mycli.py abc str --length 5 # "abcde" # $ python mycli.py abc str --length 100 # "abcdefghijklmnopqrstuvwxyz"
More samples and snippets are available at examples.
Documentation
Documentation is available at docs.
Developer Setup
In a virtual environment, install the requirements.txt file.
pip install -r requirements.txt pip install -e .
Real-world uses
- Azure CLI: The Azure CLI 2.0 is Azure’s new command line experience for managing Azure resources.
- VSTS CLI: A command-line interface for Visual Studio Team Services (VSTS) and Team Foundation Server (TFS). With the VSTS CLI, you can manage and work with resources including pull requests, work items, builds, and more.
- Service Fabric CLI: A command-line interface for interacting with Azure Service Fabric clusters and their related entities.
Do you use knack in your CLI as well? Open a pull request to include it here. We would love to have it in our list.
Release History
See GitHub Releases.
Contribute Code
This project has adopted the Microsoft Open Source Code of Conduct.
For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.
If you would like to become an active contributor to this project, please follow the instructions provided in Contribution License Agreement.
License
Knack is licensed under MIT.
Project details
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