python advanced programming ( I ) 函数式编程 函数是Python内建支持的一种封装,通过把大段代码拆成函数,通过一层一层的函数调用,就可以把复杂任务分解成简单的任务,这种分解可以称之为面向过程的程序设计。函数就是面向过程的程序设计的基本单元。 函数式编程就是一种抽象程度很高的编程范式,纯函数式编程
1#把python对象变成一个JSON2importjson3d = dict(name='Bob', age=20, score=88)4json.dumps(d)5'{"age": 20, "score": 88, "name": "Bob"}'67#把JSON反序列化为Python对象8json_str ='{"age": 20, "score": 88, "name": "Bob"}'9json.loads(json_str)10{'age': 20,'score': 88...
Advanced Python Programming上QQ阅读APP,阅读体验更流畅 领看书特权 To Get the Most out of This Book The software in this book is tested on Python version 3.5 and on Ubuntu version 16.04. However, majority of the examples can also be run on the Windows and Mac OS X operating systems. Also,...
This Learning Path shows you how to leverage the power of both native and third-party Python libraries for building robust and responsive applications. You will learn about profilers and reactive programming, concurrency and parallelism, as well as tools
As of today, Numba doesn't support optimization of generic Python objects. This limitation, however, doesn't have a huge impact on numerical codes as they usually involve arrays and math operations exclusively. Nevertheless, certain data structures are much more naturally implemented using objects; ...
Advanced Python Programming上QQ阅读APP,阅读体验更流畅 领看书特权 Lists and deques Python lists are ordered collections of elements and, in Python, are implemented as resizable arrays. An array is a basic data structure that consists of a series of contiguous memory locations, and each location ...
Open a third terminal and run the python file: rosrun handsfree_tutorials get_angular_odom.py At the beginning, the terminal displays the message0.0. When we select the second terminal with the mouse and use thej or kkeys to control the rotation of the robot, we will see that the data...
Examples in Python Summary Questions Further reading Building Communication Channels with asyncio Technical requirements The ecosystem of communication channels Communication protocol layers Asynchronous programming for communication channels Transports and protocols in asyncio The big picture of asyncio's server cl...
Python’s unpacking operators (*argsand**kwargs) allow you to handle variable numbers of arguments in functions. For example: def summarize(*args): return sum(args) print(summarize(1, 2, 3, 4)) # Output: 10 This is particularly useful for creating flexible and reusable functions. ...
Advanced Python ProgrammingBeazley, David MDavid M. Beazley. Advanced python programming. OReilly Open Source Con- ference, 2000.