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This article is a detailed introduction to "What knowledge points do Python junior programmers need to master for advancement". The content is detailed, the steps are clear, and the details are properly handled. I hope this article "What knowledge points do Python junior programmers need to master for advancement" can help you solve your doubts. Let's go deeper and learn new knowledge together with the ideas of the small editor.

Python is a simple but very powerful programming language, the application field is the best in the world, in WEB development, WEB crawler, scientific computing, artificial intelligence, cloud computing, data analysis, data mining, system operation and maintenance, finance, games and other fields have complete and mature open source solutions. A programmer with programming experience writes a crawler system from zero, usually in an afternoon. In the first year of artificial intelligence, Python has undoubtedly become one of the hottest languages of the moment, and more and more people flock to Python learning craze.

However, the basic syntax is known, the code can basically read, but the hands-on ability is poor, there is no clue to write code, and the code in open source projects is slightly complicated and difficult to understand, which is a puzzle faced by many beginners. Domestic Python tutorials are mixed, most of which only stay at the basic syntax level, which leads to many beginners and even some experienced developers writing code with a strong "accent"(programming thinking transferred from other languages), such as:

a = 1

b = 2

Exchange two variables

tmp = a

a = b

b = tmp

Although this code can be executed correctly, in Python this is very unprofessional writing, the real Pythonic writing is:

a = 1

b = 2

a, b = b, a

For example, when traversing a collection object with index subscripts, the first thing non-Python programmers think of is to define an index subscript variable:

colors = ['red', 'green', 'blue', 'yellow']

index = 0

for x in colors:

print(index, colors[index])

index += 1

If you're an experienced Python programmer, you'd expect enumeration to do just that.

colors = ['red', 'green', 'blue', 'yellow']

for index, color in enumerate(colors):

print(index, color)

Elegant writing like this, along with a lot of advanced features, decorators, generators, iterators, descriptors, etc. are a daunting mix of concepts. The tricky character encoding problem, converting byte strings to Unicode strings and vice versa in Python2, can drive people crazy. As the first class of objects, function plays an important role in practical application. To understand function is to understand the concepts of closure, decorator, scope, namespace, introspection, etc. Python garbage collection, and performance-related topics such as coroutine concurrency, are almost unknown, metaclasses you may never need in your life (if you're going to write a framework, you'll inevitably need to understand metaclasses and their applications). The essence of object-orientation, how to use Python data structures efficiently.

Read here, this article "Python junior programmer advanced need to master what knowledge points" article has been introduced, want to master the knowledge points of this article also need to be used by yourself to understand, if you want to know more related content articles, welcome to pay attention to the industry information channel.

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