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python-cli-ui

Tools for nice user interfaces in the terminal.

Note

This project was originally hosted on the TankerHQ organization, which was my employer from 2016 to 2021. They kindly agreed to give back ownership of this project to me. Thanks!

Features

• Colored output: Easy to use color constants and formatting
• User input: Ask questions, get choices, passwords
• Progress indication: Show progress with dots, counters, and progress bars
• Tables: Display data in nicely formatted tables
• Timers: Time operations with context managers or decorators
• Cross-platform: Works on Linux, macOS, and Windows

Installation

pip install cli-ui

Quick Start

import cli_ui

# Coloring
cli_ui.info(
    "This is", cli_ui.red, "red", cli_ui.reset,
    "and this is", cli_ui.bold, "bold"
)

# User input
with_sugar = cli_ui.ask_yes_no("With sugar?", default=False)

fruits = ["apple", "orange", "banana"]
selected_fruit = cli_ui.ask_choice("Choose a fruit", choices=fruits)

# Progress
list_of_things = ["foo", "bar", "baz"]
for i, thing in enumerate(list_of_things):
    cli_ui.info_count(i, len(list_of_things), thing)

# Tables
headers = ["name", "score"]
data = [
    [("John", cli_ui.bold), (10, cli_ui.green)],
    [("Jane", cli_ui.bold), (5, cli_ui.green)],
]
cli_ui.info_table(data, headers=headers)

API Overview

Colors and Formatting

Available colors: black, red, green, yellow, blue, magenta, cyan, white
Available formatting: bold, faint, standout, underline, blink, overline, reset

Information Functions

• info(*tokens, **kwargs) - Print informative message
• info_1(*tokens, **kwargs) - Important info with "::" prefix
• info_2(*tokens, **kwargs) - Secondary info with "=>" prefix
• info_3(*tokens, **kwargs) - Detailed info with "*" prefix
• info_section(*tokens, **kwargs) - Section header with underline
• debug(*tokens, **kwargs) - Debug message (only shown if verbose=True)

Error Functions

• warning(*tokens, **kwargs) - Print warning message
• error(*tokens, **kwargs) - Print error message
• fatal(*tokens, exit_code=1, **kwargs) - Print error and exit

Progress Functions

• dot(last=False, fileobj=sys.stdout) - Print progress dot
• info_count(i, n, *rest, **kwargs) - Show counter with message
• info_progress(prefix, value, max_value) - Show percentage progress

User Input Functions

• ask_string(*question, default=None) - Ask for string input
• ask_password(*question) - Ask for password (hidden input)
• ask_yes_no(*question, default=False) - Ask yes/no question
• ask_choice(*prompt, choices, func_desc=None, sort=True) - Choose from list
• select_choices(*prompt, choices, func_desc=None, sort=True) - Select multiple

Table Functions

• info_table(data, headers=(), fileobj=sys.stdout) - Display formatted table

Utility Functions

• indent(text, num=2) - Indent text by number of spaces
• tabs(num) - Generate tab spacing
• did_you_mean(message, user_input, choices) - Suggest corrections

Configuration

cli_ui.setup(
    verbose=False,    # Show debug messages
    quiet=False,      # Hide info messages  
    color="auto",     # Color mode: "auto", "always", "never"
    title="auto",     # Terminal title updates
    timestamp=False   # Add timestamps to messages
)

Timer Context Manager

# As context manager
with cli_ui.Timer("doing something"):
    do_something()

# As decorator
@cli_ui.Timer("processing")
def process_data():
    # ... processing code
    pass

Testing Support

For testing code that uses cli-ui:

from cli_ui.tests import MessageRecorder

def test_my_function(message_recorder):
    message_recorder.start()
    my_function()  # calls cli_ui.info("something")
    assert message_recorder.find("something")
    message_recorder.stop()

Examples

See the examples/ directory for:

• Basic usage examples
• Threading examples
• Async/await examples

Requirements

• Python 3.7+
• colorama>=0.4.1
• tabulate>=0.8.3
• unidecode>=1.0.23

License

BSD 3-Clause License. See LICENSE file for details.

Contributing

Contributions welcome! Please see the contributing guidelines in the repository.

[cgestes]

what is this ? :D

Some AI seems to really like readmes and added it in the PR description, and also as a .md cause who understand rst nowadays? :DDD