Liuxingyuan Classroom: Any suggestions for beginners to learn Python? What are the learning contents of Python?

Several IT leaders mentioned python, and they said that it is easy to learn python well from zero foundation, but it takes some effort to advance python. However, it is said that Python is easy to learn, so what are the suggestions for beginners to learn Python? What are the learning contents of Python?

According to statistics, there are many people with zero foundation or non-professionals who learn python. According to the HackerRank developer survey report in May 2018 (see figure), Python ranks first and becomes the most popular programming language. Python is known for its elegance and simplicity, and has a low entry threshold. It can be engaged in Linux operation and maintenance, Python Web site engineer, Python automated testing, data analysis, artificial intelligence and other positions, and the salary is on the rise.

How to learn python well from zero foundation? What is the strategy for learning python?

More than one person on the Internet speaks Python. It is easy to get started. People with basic Python programming experience in other languages ​​can learn the most basic content of Python in 1 week. Of course, people without foundation can also learn directly, but the speed will be slower.

Of course, getting started with python requires a good attitude first. Because programming is a technology, it can also be said to be a craft. Like calligraphy, painting, musical instruments, carving, etc., there must be a long period of repeated practice behind the skilled craftsmanship. Don't believe in a few weeks of quick success, and don't rush it. The world of programming is vast, so learn with awe, and take every line of code you write, even every character, seriously. Pack up your mentality and set off towards the world of programming. The first step is crucial, and it is related to whether a beginner goes from entry to mastery or from entry to giving up. Choose a suitable entry path and stick to it. Next, configure the Python learning environment. Should I choose Python2 or Python3? Many people are confused when getting started. The only difference between the two is program incompatibility, there is no big difference in thinking, and there are not many grammatical changes. It doesn't matter which one you choose to start with. If you still can't decide, then please choose Python3, after all, this is the future trend.

The learning content of python includes:

1. The use of commonly used built-in types (int, float, bool, bytes, str, list, dict, set).

2. The syntax of branch if-else loop while iteration for.

3.def defines the function and calls the function.

4. Use generators, iterators

5. Functional programming, anonymous function lambda, map, reduce, filter

6. List parsing, dictionary parsing, set parsing, generator parsing

7. Operator overloading (setattr, getattr, getitem, gt, l...)

8. property, descriptor (get, set, delete)

9. Context manager (enter, exit)

10. Deep understanding of object orientation

The above are all at the language level and belong to internal skills. Of course, some more specific external skills are needed in actual combat. Training external skills can start from being familiar with the Python standard library. The fact that these modules can enter the standard library means that they are good enough and are commonly used in practical projects. List some of the most commonly used ones:

1. Regular expression re

2. Itertools

3. Common data structures collections, heapq, array

4. Process binary data struct

5. Random

6. System call os

7. Python object serialization pickle

8. Multi-process multi-threading threading, multiprocessing

9. Network socket, urllib

10. System parameter sys Similarly, in terms of operating environment, Python supports all existing mainstream operating platforms, whether it is windows, mac or linux, it can run Python very well. The latter two have their own Python environment by default.

The above is all the content shared this time. If you want to learn more Python skills, please continue to pay attention to Liuxingyuan Classroom!