Python reading notes

Python has six standard data types:

1.Number (digital): Int,float,bool,complex

2.String (String)

3.Tuple (Ganso)

4.List (list)

5.Dictionary (dictionary)

6.Sets (Collection)

Iterators:

The iterator object is accessed from the first element of the collection until all of the elements have been accessed and finished. Iterators can only move forward without backing back.

Two basic methods:iter () creates an iterator object and next element of the next () output iterator .

Generator:

Function:

A piece of code that is organized, reusable, used to implement a single, or associated function.

Indefinite length parameter

Variable names with an asterisk (*) will hold all unnamed variable arguments. If a parameter is not specified when the function is called, it is an empty tuple. We can also not pass unnamed variables to the function

anonymous functions:lambda

variable scope: global variable local variable

Module:

A module is a file that contains all of the functions and variables that you define, followed by a. PY name.

1. Import 2.from...import 3.from...import * (all available methods and variables in the import module) 4. In-depth module (use Import to directly import the name of the module (function, variable) into the current operating module): from F IBO Import Fib,fib2

Package: A package is a form of managing a Python module namespace, with a "point module name".

Python reading notes