Python: Everything is object.
The python language is one of the most accessible programming languages available because it has simplified syntax and not complicated, which gives more emphasis on natural language. Due to its ease of learning and usage, python codes can be easily written and executed much faster than other programming languages.
1: Python id():
All objects in Python has its own unique id. The id is assigned to the object when it is created. The id is the object’s memory address, and will be different for each time you run the program. ( except for some object that has a constant unique id, like integers from -5 to 256)
The id() function returns identity (unique integer) of an object.
The syntax of
2:What is a mutable object?
A mutable object is an object whose state can be modified after it is created. Immutables are the objects whose state cannot be changed once the object is created. Strings and Numbers are Immutable.
- Exemple of mutable object:
The objects in which you can change the fields and states after the object is created are known as Mutable objects. Example: java.
3:What are immutable objects in python?
Most python objects (booleans, integers, floats, strings, and tuples) are immutable. This means that after you create the object and assign some value to it, you can’t modify that value. Definition An immutable object is an object whose value cannot change.
What is immutable with examples?
The immutable objects are objects whose value can not be changed after initialization. We can not change anything once the object is created. For example, primitive objects such as int, long, float, double, all legacy classes, Wrapper class, String class, etc. In a nutshell, immutable means unmodified or unchangeable.
4- Python treat mutable and immutable objects:
Python handles mutable and immutable objects differently. Immutable are quicker to access than mutable objects. Mutable objects are great to use when you need to change the size of the object, example list, dict etc.. Immutables are used when you need to ensure that the object you made will always stay the same.
5- imply for mutable and immutable objects:
how arguments are passed to functions and what does that imply for mutable and immutable objects?
ython compiler handles function arguments slightly different than other popular programming languages like
C++, and Java but much like Ruby. Python function arguments behavior is confusing when a “mutable” object, like Python
list, is involved in the function argument list. The behavior of Python function arguments or parameters is interesting and confusing for the beginners at the same time. It is believed, this strange behavior bites once a time to almost all the beginners of Python developers in their programming life.
You need to spare some time and read this complete article with examples. It is advised that you should also read some other related articles mentioned here to understand this behavior. This will definitely help you to avoid strange circumstances in programming due to this behavior of Python function argument.