Python is a very simple, easy to learn, powerful programming language, with rich and powerful libraries, development efficiency is particularly high.

What can a Python crawler do

80% of crawlers in the world are developed based on Python. Learning crawler skills can provide important data sources for subsequent big data analysis, mining and machine learning.

What is a reptile?


Generally speaking, web crawler is to obtain the data you want on the Web page through the program, that is, to automatically capture data.

What can a reptile do?

You can crawl pictures, you can crawl videos, you can crawl whatever data you want, anything that you can access through your browser.

What is a Python?

Python is an interpreted, object-oriented, high-level programming language with dynamic semantics.

Python has a powerful and rich class library, often referred to as a glue language, that can be combined with modules written in other languages.

1. Simple:

Python is a language that stands for the idea of simplicity.

2. Easy to use:

Python is simple and easy to get started with because of the simple, easy-to-understand documentation.

3. Fast speed:

Fast, because both the standard and third-party libraries in Python are written in C, they are fast.

4. Free and open source:

Python is one of the FLOSS(free/source software) systems where users are free to distribute copies of the software, read its source code, make changes to it, and use parts of it in new free software.

5. High-level language:

When writing programs in Python, you don’t have to worry about low-level details like how to manage the memory your programs use.

6. Portability:

Due to its open source nature, Python has been ported to many platforms (with modifications to make it work on different platforms).

7. Explanatory:

Programs written in Python do not need to be compiled into binary code. You can run programs directly from source code. Inside the computer, the Python interpreter converts the source code into an intermediate form called bytecode, which is then translated and run into the machine language the computer uses. This makes Python much easier to use. It also makes Python programs more portable.

8. Object-oriented:

Python supports both procedural and object-oriented programming. In a “procedural oriented” language, programs are built from procedures or simply functions of reusable code. In “object-oriented” languages, programs are built from objects composed of data and functions.

9. Scalability:

If you need a critical piece of code to run faster or you want some algorithms to be hidden, you can write parts of your program in C or C++ and use them in Python programs.

10. Embeddability:

Python can be embedded in C/C++ programs to provide scripting functionality to program users.

11. Rich library:

The Python standard library is indeed vast. It can help with a variety of jobs, including regular expressions, document generation, unit testing, threading, databases, Web browsers, CGI, FTP, E-mail, XML, XML-RPC, HTML, WAV files, password systems, GUIs (graphical user interfaces), Tk, and other system-related operations.

12. Specification code:

Python uses forced indentation to make code more readable. Programs written in Python do not need to be compiled into binary code.