📅  最后修改于: 2023-12-03 14:45:55.796000             🧑  作者: Mango
Python is a popular high-level programming language that has a modern syntax and easy-to-learn structure. It is widely used in various industries such as web development, scientific computing, data analysis, artificial intelligence and machine learning. Python 4 is the latest version of the language that brings several new features and enhancements to the table.
The following are some of the new features of Python 4:
Type hints provide a way for programmers to annotate the type of a variable, function parameter or return value. This enhances the readability of the code and provides better tools for static analysis and debugging.
def get_full_name(first_name: str, last_name: str) -> str:
return f"{first_name} {last_name}"
Data classes are a way to automatically generate constructors, methods and other special methods for classes that are primarily used to store data. This reduces boilerplate code and enhances the readability of the code.
from dataclasses import dataclass
@dataclass
class Person:
first_name: str
last_name: str
age: int
Python 4 introduces a new operator @
for matrix multiplication, which simplifies the code and enhances performance.
import numpy as np
a = np.array([[1, 2], [3, 4]])
b = np.array([[5, 6], [7, 8]])
c = a @ b
Python 4 introduces a new syntax for decimal literals, which enhances the readability of the code.
one_million = 1_000_000
Python 4 brings several new features and enhancements to the language that make it more powerful, readable and easy to use. With its popularity and versatile applications, Python continues to be a top choice for programmers of all levels.