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Dynamically Switch Between Values and Functions — Without if Statements

#python #opensource #tutorial #triggon

Python library triggon can dynamically switch values and functions, and it helps clean up your code by reducing the need for if statements.

I'm going to introduce its features with two simple examples!

➀ Switch between values and functions 

import random

from triggon import Triggon, TrigFunc

F = TrigFunc() # Wrapper for delayed execution
tg = Triggon("num", new=F.random.randint(1, 100))

def func():
    # If 'num' is active, switch the value from 0 to random.randint(1, 100)
    num = tg.switch_lit("num", org=0)
    print(num) 

func()

tg.set_trigger("num") # Activate the "num" label
func()

tg.revert("num") # Switch to the original value
func()
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# == Output ==
0
79 (random number between 1 and 100)
0
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switch_lit() automatically executes the function if it is delayed with TrigFunc.

TrigFunc works by simply creating an instance and wrapping the target function, just like a normal function call.

➁ Switch to multiple index values for a single variable 

F = TrigFunc()

# "nums" holds the values of (index 0, index 1, index 2, index 3) 
tg = Triggon("nums", new=(1, 2, 3, F.print("Next it'll be 0!")))

x = 0
print(x)

tg.set_trigger("nums") # Activate "nums" label

tg.switch_var("nums", x)          # Switch to index 0
print(x)

tg.switch_var("nums", x, index=1) # Switch to index 1
print(x)

tg.switch_var("nums", x, index=2) # Switch to index 2
print(x)

# If the value is a delayed function with TrigFunc, 
# it will also execute automatically.
tg.switch_var("nums", x, index=3) # Switch to index 3

tg.revert("nums") # Switch to the original value of x
print(x)
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# == Output ==
0
1
2
3
Next it'll be 0!
0
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revert() can restore the original value even if it's switched multiple times.

Those examples use one label but you can define any number of labels!

About triggon

triggon has been officially released with 2 new functions and over 15 features added!

And it supports the following features:

  • Dynamically switch values and functions
  • Call functions and return early at any time
  • Optionally return a value with an early return
  • Delay the execution of almost any function

This library is for reducing if statements in your code!
If you’re interested, give it a try!

🔗 PyPI →　https://pypi.org/project/triggon
🔗 GitHub → https://github.com/tsuruko12/triggon

I also post about the development and my learning logs on X.

Feel free to follow me!
🔗 X → @tool_tsuruko12

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