Textloader

Small Python module to display loading animations in the console/terminal.

Use

from time import sleep
from textloader import CirculatePointsLoader


if __name__ == "__main__":
    temp = CirculatePointsLoader()
    temp.PrintAsyncAnimation()
    sleep(temp.number_of_characters * temp.animation_delay * 5)
    temp.StopAsyncAnimation()

Documentation

class BaseTextLoader()

It is the base class from which all other classes in the code inherit. This class contains all the fundamental methods and properties, the classes that inherit to this super class only modify the property _animation, which is a list that contains all the characters that will be printed. Its _animation property is empty, so using this class directly will not show any noticeable result, unlike the following classes:

class CirculatePointsLoader()

Its animation consists of dots that simulate an external rotation.

_animation = ['⠾', '⠽', '⠻', '⠟', '⠯', '⠷']

class DownPointsLoader()

Its animation consists of dots that simulate falling to complete a 2x3 rectangle.

_animation = [
    '⠁', '⠂', '⠄', '⡀', '⡈', '⡐', '⡠', '⣀', '⣁', '⣂', '⣄', '⣌', '⣔', '⣤',
    '⣥', '⣦', '⣮', '⣶', '⣷', '⣿', '⣿', '⣿']

class SetPointsLoader()

Its animation consists of setting several points every so often until a 2x3 rectangle is completed.

_animation = ['⡀', '⡠', '⡢', '⡪', '⡫', '⡻', '⡿', '⣿', '⣿', '⣿']

class RotatePointsLoader()

Its animation consists of dots that simulate an internal rotation.

_animation = ['⣀', '⡄', '⠆', '⠃', '⠉', '⠘', '⠰', '⢠']

property BaseTextLoader.number_of_characters

An integer that returns the number of characters in the animation.

from textloader import *
rtl = RotatePointsLoader()
print(rtl.number_of_characters)

# Output: 8

property BaseTextLoader.current_animation

An integer that returns the position of the last returned or printed character.

from textloader import *

rtl = RotatePointsLoader()
print(rtl.current_animation)
print(rtl.NextAnimation())
print(rtl.NextAnimation())
print(rtl.current_animation)

# Output:
# 0
# ⣀
# ⡄
# 1

property BaseTextLoader.current_character

A string that returns the last returned or printed character.

from textloader import *

rtl = RotatePointsLoader()
print(rtl.current_character)
rtl.NextAnimation()
rtl.NextAnimation()
print(rtl.current_character)

# Output:
# ⣀
# ⡄

property BaseTextLoader.animation_delay

A float that determines the time to wait before proceeding to the next character. Internally, it is used when PrintAsyncAnimation is active. The default value is 0.1.

from textloader import *

rtl = RotatePointsLoader()
print(rtl.animation_delay)
rtl.animation_delay = 0.5
print(rtl.animation_delay)

# Output:
# 0.1
# 0.5

method BaseTextLoader.NextAnimation()

Return the following character. In case the last character has already been returned, this method will consequently restart the count and return the first character.

from textloader import *

rtl = RotatePointsLoader()
print(rtl.NextAnimation())
print(rtl.NextAnimation())

# Output:
# ⣀
# ⡄

method BaseTextLoader.PrintAsyncAnimation()

Starts a thread in which the animation will be printed until the StopAsyncAnimation method is called or until the program terminates. NOTE: The method is executed in a daemon thread to avoid deadlocks when terminating the program without having previously called StopAsyncAnimation.

from textloader import *
from time import sleep

rtl = RotatePointsLoader()
rtl.PrintAsyncAnimation()

sum_result = 0

for i in range(1, 6):
    sleep(0.5)
    sum_result += i

rtl.StopAsyncAnimation()
print(sum_result)

# Output:
# (animation)
# 15

method BaseTextLoader.StopAsyncAnimation()

Stops the call made to PrintAsyncAnimation.

from textloader import *
from time import sleep

rtl = RotatePointsLoader()
rtl.PrintAsyncAnimation()

sum_result = 0

for i in range(1, 6):
    sleep(0.5)
    sum_result += i

rtl.StopAsyncAnimation()
print(sum_result)

# Output:
# (animation)
# 15