initify.py
The missing magical python decorator for simplifying your __init__(self, ...) function.
Quick usage
class Dog(Animal):
@init_args # The missing magical decorator
def __init__(self, name, color)
# No more yucky self.name self.color!!!
passd = Dog(name="Bobby", color="Blue")
# d.name `Bobby`
# d.color `Blue`Introduction
Rule of thumb, DRY (Don't Repeat Yourself). We've all been tired of doing variable assignments like this:
class MyClass:
def __init__(self, var1, var2, ...):
self.var1 = var1
self.var2 = var2
...Yikes! We're constantly repeating ourselves in typing self... self... Wonder if there's any better ways of writing initializer for python classes?
Now you have! initify.py is a simple decorator function attached to __init__(self, ...) and auto-magically sets the instance variable for you during runtime! No more pain in the... __init__ :)
Default values supported
Wanted to have default values for your initializer? No problem just throw it in!
...
@init_args # Magical decorator
def __init__(self, name="Lovely Lucy", age=10):
# just do whatever other initialization you may need here
pass # Put a pass here if nothing to do
...p = Person()
p.name # "Lovely Lucy"
p.age # 10Sweet!
Inherited variables from super class
If you have polymorphism structured classes, you'd love initify.
class Animal:
def __init__(self, obj): # REQUIRED reserve "obj" for super class injecting
self.age = 0
self.name = ""
self.color = ""
...
class Dog(Animal):
@init_args
def __init__(self, pet=True):
pass
...
class Cat(Animal):
@init_args
def __init__(self, wild=False):
pass
...d = Dog(age=3, name="Golfy", color="black")
d.age # 3
d.name # Golfy
d.color # black
d.pet # True
c = Cat()
c.age # 0
c.name # ""
c.color # ""
c.wild # FalseThat's dull :/ Don't judge until you see this:
Exclused variables
class Animal:
def __init__(self, obj): # REQUIRED reserve "obj" for super class injecting
self.age = 0
self.name = ""
self.color = ""
...
self.barks = True # Only dog barks
self.meows = True # and only cat meows
...
class Dog(Animal):
@init_args(exclude=['meows']) # Don't inherit meows from super class!
def __init__(self, pet=True):
pass
...
class Cat(Animal):
@init_args(exclude=['barks']) # Don't inherit barks from super class!
def __init__(self, wild=False):
pass
...d = Dog(age=3, name="Golfy", color="black")
d.age # 3
d.name # Golfy
d.color # black
d.pet # True
...
d.barks # True
d.meows # Attribute Error: meows is not defined!
c = Cat()
c.age # 0
c.name # ""
c.color # ""
c.wild # False
...
d.meows # True
d.barks # Attribute Error: barks is not defined!Now this is neat hey?
Installation
Download this repo using git or HTTP.
git clone https://github.com/prankymat/initify.py.gitChange directory into the repo
cd initify.pyInstall using setup.py
python3 setup.py installThen whichever class you're using initify, do an import before using. Example:
from initify import init_argsNow you can attach the decorator @init_args right before the class's initializer def ___init___(self, ...). Enjoy your effort.
Support
Hope this decorator can help you with your `DRY-iness in your python project!
If you have any suggestion, please don't hesistate to give a post on the issue page.
Cheers and happy hacking!
