Python has a large number of special members and “magic methods” like __doc__ which start and end with double underscores. They play a very important role and are also one […]

Python’s built-in @property decorator can make a class’s method-call like property-call. That is to say, the method call of foo.func() can be changed into foo.func. Besides @property decorator, there is […]

In a java-like language, you have the private keyword, which makes certain variables and methods private, preventing external access. However, python does not have this mechanism. Python does this by […]

Python classes, all methods of classes and class variables have only one copy in memory, and all instances of one python class share them. Each instance keeps its own and […]

Python has a built-in open() method for reading and writing files. Using the open() method to operate a file can be divided into three steps: first, open the file, second, […]

Sometimes, the number of elements in a sequence or collection is very large. If all elements are created and put into memory, the pressure on the computer is very large. […]

Iteration is the process of iterating through each element of an object through a for loop. Python’s for syntax is powerful enough to iterate over any object. In python, list […]

Python language has a unique comprehension syntax, which is equivalent to the existence of syntactic sugar. It can help you to write relatively simple and cool code in some occasions. […]

When we create python functions, sometimes we do not need to define python functions explicitly, and it is more convenient to pass them into anonymous functions directly. This saves us […]