# interrogatio

A python library to prompt users for inputs in a terminal application.

What is interrogatio

interrogatio is a python 3.8+ library based on the python-prompt-toolkit and inspired by PyInquirer that help CLI developers to ask users for inputs.

Questions can be rendered onto the terminal prompt or as curses-like dialogs.

Documentation

interrogatio documentation is hosted on Read the Docs.

Getting started

Requirements

interrogatio depends on the python-prompt-toolkit library and its dependencies.

Installation

Using pip

$ pip install interrogatio

Extra dependencies

If you want to use the shell command with yml files you can install the yml dependency:

$ pip install interrogatio[yml]

Basic usage

interrogatio needs a list of questions to prompt the user for answers.

Each question is a python dictionary with at least the following keys:

• name: it has to be unique within the list of questions. It represents the variable name;
• type: the type of question;
• message: the text of the prompt.

Optionally you should specify:

• a default: a default value;
• a validators: a list of children of Validator class
• a values: a list of tuples (value, label) to provide a list of choices for the selectone or selectmany question types.

interrogatio can run into two modes: dialog and prompt.

Dialog mode

from interrogatio import dialogus

questions = [
    {
        'name': 'name',
        'type': 'input',
        'message': "What's your name ?",
        'description': 'Please enter your full name. This field is required.',
        'validators': [{'name': 'required'}],
    },
    {
        'name': 'birth_date',
        'type': 'date',
        'message': "What's your birth date ?",
        'description': 'Enter your birth date.',
    },
    {
        'name': 'nationality',
        'type': 'selectone',
        'message': "What's your nationality ?",
        'description': 'Please choose one from the list.',
        'validators': [{'name': 'required'}],
        'values': [
            ('IT', 'Italian'),
            ('ES', 'Spanish'),
            ('US', 'American'),
            ('UK', 'English'),
        ],
    },
    {
        'name': 'languages',
        'type': 'selectmany',
        'message': "What are your favorite programming languages ?",
        'description': 'Please choose your favorites from the list.',
        'values': [
            ('py', 'Python'),
            ('rb', 'Ruby'),
            ('js', 'Javascript'),
            ('go', 'Golang'),
            ('rs', 'Rust'),
            ('c', 'C'),
            ('cpp', 'C++'),
            ('java', 'Java'),
        ],
    },
]

intro = """<blue>Welcome to <b><i>interrogatio 2.0</i></b>!

This is the second major release of interrogatio with nice improvements.</blue>

<b>What's new</b>
<b>----------</b>

* Curses-like dialog experience had been completely rewritten.
* New questions handlers for dates, date ranges and masked inputs.
* Validators are now based on the <u>validators</u> library.
"""


answers = dialogus(questions, 'interrogatio showcase', intro=intro, summary=True)

Prompt mode

from interrogatio import interrogatio

questions = [
    {
        'name': 'name',
        'type': 'input',
        'message': "What's your name ?",
        'description': 'Please enter your full name. This field is required.',
        'validators': [{'name': 'required'}],
    },
    {
        'name': 'birth_date',
        'type': 'date',
        'message': "What's your birth date ?",
        'description': 'Enter your birth date.',
    },
    {
        'name': 'nationality',
        'type': 'selectone',
        'message': "What's your nationality ?",
        'description': 'Please choose one from the list.',
        'validators': [{'name': 'required'}],
        'values': [
            ('IT', 'Italian'),
            ('ES', 'Spanish'),
            ('US', 'American'),
            ('UK', 'English'),
        ],
    },
    {
        'name': 'languages',
        'type': 'selectmany',
        'message': "What are your favorite programming languages ?",
        'description': 'Please choose your favorites from the list.',
        'values': [
            ('py', 'Python'),
            ('rb', 'Ruby'),
            ('js', 'Javascript'),
            ('go', 'Golang'),
            ('rs', 'Rust'),
            ('c', 'C'),
            ('cpp', 'C++'),
            ('java', 'Java'),
        ],
    },
]


answers = interrogatio(questions)

Contributing

If you want to contribute to the project, you can submit bugs, feature requests or fork the github repository and submit your pull request.

License

interrogatio is released under the BSD 3-Clause "New" or "Revised" License.