There is a saying in the field of program development: life is short, I use Python. This is the golden sentence of developer tycoon Bruce Eckel: Life is short, you need Python. Interestingly, many people are not full-time programmers, but they regard this sentence as an oracle. So what is the magical power of Python that makes people all over the world pursue it?
I think Python is so popular because it's probably the easiest IT skill to learn and the quickest to make money. Python is well-known for its easy-to-learn features, so you don't have to be a programmer to learn it, and zero-based personnel in other industries can easily learn it and use it to start a side business to make money.
How to make money with Python technology?
When I first learned Python, a friend introduced me to take orders for private work. I still remember that I was crawling data for a company, and I earned 5.5K for that order. Since then, I have gradually become proficient, and have taken on a lot of private work of data collection and processing in my spare time. On average, I can earn about 30,000 yuan a month by doing private work part-time .
Python technology takes more orders to make more money and faster jobs, which are generally reptiles. It mainly crawls the data of websites, small programs or APPs, analyzes and processes the data, or directly provides crawler programs and technical support to customers.
What are reptiles?
When it comes to reptiles, many people say that reptiles are a bit complicated, and they have not mastered them after a long time of learning, but in fact they have mastered the correct implementation ideas, and reptiles are actually very fast to learn .
First of all, let's figure out how the crawler works. Crawlers usually consist of four steps: target information website, page crawling, page analysis, and data storage . The detailed process of crawling website resources is as follows:
- Import two libraries for request and webpage parsing
- Then request the web page to get the source code
- Initialize the soup object
- Open the target page with a browser
- Locating the location of the required resources
- Then analyze the source code at that location
- Find tags and attributes for positioning
- Finally, write the parsing code to get the desired resources
Problems encountered during crawling
When we are familiar with the principles and processes, it will be easy to implement crawlers. Of course, the process of crawling data is not always without obstacles. There are often various reasons that hinder us from obtaining data. There are problems with the crawler program itself, and there are also anti-crawler obstacles set by the target. The common ones are:
- Inefficiency due to limited machine performance
- Data in APPs and Mini Programs is Difficult to Obtain
- The target website data cannot be fetched by JS rendering
- The target returned encrypted data
- The target website has a verification code and cannot obtain resources
- The target returned dirty data, unrecognizable
- The target detected that the crawler blocked the IP
- The target site must be logged in to display
If you can't solve these problems, you can't fully master Python crawler technology, especially various anti-crawler measures, which have become the biggest obstacle for us to crawl data.
How to learn Python based on 0?
Friends from all walks of life often say that they are under great economic pressure and want to learn Python to develop side business skills to make money, but they don't know how to learn.
Therefore, in order to help friends who are not familiar with Python reptiles to learn technology well and make money part-time in the shortest possible time, I made a special trip to find my friend who was a former technical executive of a big factory + a Python technical expert, and directly contacted Tencent Classroom, tailor-made for beginners ——A complete set of Python entry-level learning tutorials
1. Learning routes in all directions of Python
The technical points in all directions of Python are sorted out to form a summary of knowledge points in various fields. Its usefulness lies in that you can find corresponding learning resources according to the above knowledge points to ensure that you can learn more comprehensively.
Reminder: The space is limited, the folder has been packed, and the way to obtain it is at the end of the article! ! ! !
2. Learning software
If a worker wants to do a good job, he must first sharpen his tools. The commonly used development software for learning Python is here, which saves you a lot of time.
3. A full set of PDF e-books
The advantage of books lies in their authority and sound system. When you first start learning, you can just watch videos or listen to someone’s lectures, but after you finish learning, you think you have mastered it. At this time, it is recommended to read books and read Authoritative technical books are also the only way for every programmer.
4. Introductory learning video
When we watch videos and learn, we can’t just move our eyes and brain without using our hands. A more scientific learning method is to use them after understanding. At this time, the hands-on project is very suitable.
5. Practical cases
Optical theory is useless, you have to learn to follow along, and you have to do it yourself, so that you can apply what you have learned to practice. At this time, you can learn from some actual combat cases.
6. Interview information
We must learn Python to find high-paying jobs. The following interview questions are the latest interview materials from first-line Internet companies such as Ali, Tencent, and Byte, and Ali bosses have given authoritative answers. After finishing this set The interview materials believe that everyone can find a satisfactory job.
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