Learn Python
Python is an interpreted, high-level and general-purpose programming language. Python's design philosophy emphasizes code readability with its notable use of significant whitespace. Its language constructs and object-oriented approach aim to help programmers write clear, logical code for small and large-scale projects.
Data Types in Python
In programming, data type is an important concept.
Variables can store data of different types, and different types can do different things.
A variable is created the moment you first assign a value to it.
Variables do not need to be declared with any particular type, and can even change type after they have been set.
Python has the following data types built-in by default, in these categories:
- Text Type: str
- Sequence Types: list, tuple, range
- Numeric Types: int, float, complex
- Mapping Type: dict
- Set Types: set, frozenset
- Boolean Type: bool
- Binary Types: bytes, bytearray, memoryview
Object Oriented Programming
Object-oriented programming (OOP) is a method of structuring a program by bundling related properties and behaviors into individual objects. Conceptually, objects are like the components of a system. Think of a program as a factory assembly line of sorts. At each step of the assembly line a system component processes some material, ultimately transforming raw material into a finished product. An object contains data, like the raw or preprocessed materials at each step on an assembly line, and behavior, like the action each assembly line component performs. Object-oriented programming is a programming paradigm that provides a means of structuring programs so that properties and behaviors are bundled into individual objects. For instance, an object could represent a person with properties like a name, age, and address and behaviors such as walking, talking, breathing, and running. Or it could represent an email with properties like a recipient list, subject, and body and behaviors like adding attachments and sending.Put another way, object-oriented programming is an approach for modeling concrete, real-world things, like cars, as well as relations between things, like companies and employees, students and teachers, and so on.
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Python | Compiled or Interpreted ?
n various books of python programming, it is mentioned that python language is interpreted.
But that is half correct the python program is first compiled and then interpreted. The
compilation part is hidden from the programmer thus, many programmers believe that it is an
interpreted language. The compilation part is done first when we execute our code and this will
generate byte code and internally this byte code gets converted by the python virtual machine(p.v.m)
according to the underlying platform(machine+operating system).
Now the question is – if there is any proof that python first compiles the program internally and then
run the code via interpreter?
The answer is yes! and note this compiled part is get deleted by the python(as soon as you execute your code)
just it does not want programmers to get into complexity.
See This sample code:
print("i am learning python")
print("i am enjoying it")
now if you run this code using command prompt just save this above code in notepad and save with the extension “.py”
syntax: python (name of the program.py) and press enter.