koinput 0.3.2

Maximal simplification of Input / Output for text programs.

Table of contents

• koinput

• What’s new?

• Installation

• How to use

  • Inputs

    • Explanation of input parameters

    • Usage example

  • Menu

    • Usage example

  • ProgressBar

    • Usage example

koinput

Maximal simplification of Input / Output for text programs.

PyPI for releases | Github for source

What’s new?

0.3.2

• Minor improvements and bug fixes.

• Fixed inaccuracies in README file.

0.3.1

• Added multiple input for int_input and float_input.

0.3.0

• Added a new ProgressBar function. How to use see below.

• Added input_suggestion_style for Menu and Inputs.

Installation

Requirements colorama library.

pip install koinput

How to use

Inputs

The library has two types of inputs:

• int_input

• float_input

They have the same settings and differ only in the type of output.

Explanation of input parameters

def int_input(input_suggestion: str = '', greater: float or int = float('-inf'), less: float or int = float('inf'),
              console_style: str = Fore.RESET, error_message: str = 'Invalid number format.\n',
              error_message_style: str = Fore.RED, multiple_numbers_in_line: bool = False,
              input_is_greater_than_less_error: str = "The number is greater than acceptable.\n",
              input_is_less_than_greater_error: str = "The number is less than acceptable.\n",
              input_is_less_error_style: str = None, input_is_greater_error_style: str = None,
              strictly_greater: bool = True, strictly_less: bool = True,
              input_suggestion_style: str = None) -> int or list:

input_suggestion=""

Input suggestion that will be displayed when the function is run.

greater=float('-inf'), less=float('inf')

The range in which the entered number should be included.

strictly_greater=True, strictly_less=True

Controlling the mathematical strictly of comparisons.

console_style=colorama.Fore.RESET

Sets the base display style for the terminal. I recommend using the colorama library for easier style customization. You can also use standard sequences (example: “x1b[39m”).

error_message='Invalid number format.\n'

Error message when converting input to number.

error_message_style=colorama.Fore.RED

Error message style.

input_is_greater_than_less_error="The number is greater than acceptable.\n"

The message issued when the number is greater than allowed.

input_is_less_than_greater_error="The number is less than acceptable.\n"

The message issued when the number is less than allowed.

input_is_less_error_style=None, input_is_greater_error_style=None

Out of range error styles.

input_suggestion_style=None

Input suggestion style.

multiple_numbers_in_line=False

If True the function will return a list of numbers entered in one line.

Usage example

def area_triangle(base, height):
    return 0.5 * base * height

print(area_triangle(float_input(input_suggestion='Enter the base of the triangle: '),
                    float_input(input_suggestion='Введите высоту треугольника: ')))

mas = [randint(0, 999) for i in range(int_input(input_suggestion="Enter the size of the array: "))]

Menu

The menu class is used to quickly create a text menu based on existing functions.

First, you need to create an instance of the class:

from koinput import Menu

menu = Menu()

The next step is to add function calls to the menu. This can be done in 2 ways: using a decorator or a function.

@menu.add_to_menu_dec('Name shown in the menu', *arguments_passed_to_the_function)
def z2(a, b, c):
    def area_circle(radius):
        return math.pi * radius ** 2
    print(area_circle(float_input(input_suggestion='Введите радиус круга: ')))

OR

def z2(a, b, c):
    def area_circle(radius):
        return math.pi * radius ** 2
    print(area_circle(float_input(input_suggestion='Введите радиус круга: ')))

menu.add_to_menu('Name shown in the menu', z2, *arguments_passed_to_the_function)

Use the show_menu command to display the menu.

def show_menu(self, title: str = None, title_style: str = None, number_of_leading_spaces_title: int = 2,
              console_style: str = Fore.RESET, order_of_items: tuple = None, number_of_leading_spaces: int = 4,
              separator: str = ' - ', items_style: str = None, input_suggestion: str = 'Select a menu item: ',
              enable_menu_item_exit: bool = True, menu_item_exit: str = 'Exit',
              exit_offer: str = 'Press Enter to exit...', input_suggestion_style: str = None):

title=None

Menu title.

title_style=None

Sets the title display style. I recommend using the colorama library for easier style customization. You can also use standard sequences (example: “x1b[39m”).

number_of_leading_spaces_title=2

Sets the number of spaces before the menu title.

console_style=Fore.RESET

Sets the base display style for the terminal. I recommend using the colorama library for easier style customization. You can also use standard sequences (example: “x1b[39m”).

number_of_leading_spaces=4

Sets the number of spaces before the menu items.

separator=' - '

Separator between number and menu item name.

items_style=None

Sets the menu item display style.

input_suggestion='Select a menu item: '

Input suggestion at the end of the menu.

input_suggestion_style=None

Input suggestion style.

enable_menu_item_exit=True

Enabling the menu item exit. If False, then after selecting one of the items the menu will close.

menu_item_exit='Exit'

The name of the menu exit item.

exit_offer='Press Enter to exit...'

Exit message.

order_of_items=None

Custom order of issuing menu items. It is either a tuple of int or a tuple of str. A tuple of int must contain the ordinal numbers of items starting from 0 (the numbers are given in the order in which they are declared). The str tuple must contain the names of the menu items in the order they appear.

Change the function of output from the menu.

This is necessary when you do not need an exit confirmation or when you exit you need to launch another menu or some function.

Example with disabling the exit confirmation:

@menu.reassign_menu_exit()
def menu_exit(exit_offer):
    def f():
        pass
    return f

Example with displaying another menu:

@menu.reassign_menu_exit()
def menu_exit(exit_offer):
    def f():
        menu2.show_menu(title='MENU', title_colour=colorama.Fore.BLUE, enable_menu_item_exit=False)
    return f

Usage example

import math
from koinput import float_input, Menu
import colorama

menu = Menu()


@menu.add_to_menu_dec('Площадь треугольника')
def z1():
    def area_triangle(base, height):
        return 0.5 * base * height
    print(area_triangle(float_input(input_suggestion='Введите основание треугольника: '),
                        float_input(input_suggestion='Введите высоту треугольника: ')))


@menu.add_to_menu_dec('Площадь круга')
    def z2():
        def area_circle(radius):
            return math.pi * radius ** 2
    print(area_circle(float_input(input_suggestion='Введите радиус круга: ')))


@menu.add_to_menu_dec('Расстояние от точки до точки')
def z3():
    def distance(x1, y1, x2, y2):
        return math.sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2)
    print(distance(float_input(input_suggestion='Введите X первой точки: '),
                   float_input(input_suggestion='Введите Y первой точки: '),
                   float_input(input_suggestion='Введите X второй точки: '),
                   float_input(input_suggestion='Введите Y второй точки: ')))


def z4():
    def capitalize_word(word):
        return word[0].upper() + word[1::]

    def capitalize_string(s):
        ss = s.split()
        for word in ss:
            s = s.replace(word, capitalize_word(word))
        return s
    print('Введите строку для изменения: ')
    print(capitalize_string(input()))


@menu.reassign_menu_exit()
def menu_exit(exit_offer):
    def f():
        pass
    return f


def main():
    menu.add_to_menu('Capitalize', z4)
    menu.show_menu(title='МЕНЮ', title_colour=colorama.Fore.BLUE)


if __name__ == '__main__':
    main()

ProgressBar

The progress bar is designed to show the progress of long-running tasks.

First, we import the ProgressBar class.

from koinput import ProgressBar

The class has properties:

ProgressBar.max_value: int or float = 100

The maximum value from which the percentage is calculated or indicated in the counter mode.

ProgressBar.counter: bool = False

Enables counter mode. It displays not percentages, but value from max_value.

ProgressBar.string: str = "[########################################] @@@%"

Indicates the view of the Progress Bar.

ProgressBar.progressbar_symbol: str = "#"

A symbol indicating the placement of a progress bar.

ProgressBar.percent_symbol: str = "@"

The symbol indicating the placement of percent (as well as the number of decimal places) or in counter mode only indicates its location.

ProgressBar.counter_separator: str = '/'

A character or string to be displayed between value and max_value in counter mode.

To display the progress bar, use the show function.

ProgressBar.show(value: int or float, text: str = None)

value

The current value of the progress bar.

text=None

Comment for the current operation.

Usage example

from koinput import ProgressBar
from time import sleep

ProgressBar.max_value = 123
for i in range(124):
    ProgressBar.show(i)
    sleep(0.07)

ProgressBar.max_value = 10
ProgressBar.counter = True
ProgressBar.string = "|&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&| {*}"
ProgressBar.progressbar_symbol = "&"
ProgressBar.percent_symbol = "*"
ProgressBar.counter_separator = ' element of '
for i in range(11):
    ProgressBar.show(i, f"Element {i}")
    sleep(0.7)