How to Build Command Line Interface Tool (CLI) in Python
#VFXPipeline
In this video we will learn about how to build Command Line Interface Tool (CLI) in Python.
I will cover following points
● What is Command Line Interface Tool (CLI) tool
A scary tools for very end users(Artists) because there is no user interface.
A computer program where user interact with lines of text commands.
CLI tools can be run in command prompt(Window) and Terminal(Linux, mac)
CLI tools are designed to be perform specific task by provide arguments by users.
Generally, System Admins and Technical Directors use these tools in workflow.
Anyone can use CLI tools with help and instructions provided (-h or --Help)
● Advantages of Command Line Interface Tool (CLI) tools
Very useful when you want to automate task by scripting.
Lightweight because no user interface library involved.
Can execute CLI tools in a schedules time (for example backup, or notifications)
No Human interaction required (No mouse clicks or keyboard inputs)
Using less RAM, CPU, GPU
Can run multiple instances of CLI tools on Threads
● Examples of CLI Tools
ROBOCOPY
RSYNC
IPCONFIG (win) IFCONFIG(linux)
CP
MV
DATE
TIME
● How to build CLI tool by python
Option 01 - Using sys.argv
This is not a python package. This will return all arguments provided by use in list
format.
Option 02 - Using argparse
Argparse is a python module and automatically generates help and usage messages
and issues errors when users give the program invalid arguments
● In the end I will create a sample tool in python
Using Python and Pyinstaller to build exe file
Download Source codes here:
https://github.com/vfxpipeline/Comman...
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