Using Docopt in python, the most user-friendly command-line parsing library | by Jonathan Leban | Oct, 2020

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Now that we have now created our docopt.py file, we will create a setup.py file so long as a necessities.txt file to make our undertaking much more user-friendly.

A setup.py file is a python file the place you describe your module distribution to the Distutils, in order that the varied instructions that function in your modules do the proper factor. In this file you’ll be able to specify which information in your undertaking you wish to run and that are the packages required to run the undertaking.

Before diving into the setup.py file it’s essential to have the following structure in your undertaking:

Here is an instance of a setup.py file you’ll be able to write relating to this undertaking:

And right here is the necessities.txt file:

The first ingredient you need to do it to import setup from setuptools however this bundle goes with python so you probably have python in your laptop can have it.

Then, it’s essential to create an inventory of all the required packages you’ll parse in the install_requires argument in the setup module.

In the setup module there are some components you want to pay attention to:

  • packages: ought to have the identical title as the folder you might be in so for us it’s ‘docopt-demo’
  • in the ‘console_script’ you’ll be able to specify a brief reduce for a particular file. In our case, as an alternative of typing in the terminal :

We will simply need to enter:

In reality, we affiliate the phrase ‘docopt’ to the operation ‘docopt-demo.docopt:main’ which is launching the principal operate in the docopt.py file.

In this file you specify all the packages it’s essential to set up to run your undertaking correctly.

You have two decisions to specify the model:

  • both you inform the actual model you wish to use and you’ll use the ‘==’ signal
  • or you may as well use operators like ‘>=’ to specify an older model of the bundle

In this text, I present the best way to use the Docopt python bundle which is a really good approach to parse arguments right into a file.

I hope you discovered what you got here right here for in this text and stick with me for the subsequent episodes of this picture recognition journey!

PS: I’m at the moment a Machine Learning Engineer at Unity Technologies not too long ago graduated from a Master of Engineering at UC Berkeley, and if you wish to focus on the subject, be at liberty to achieve me. Here is my e mail.

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