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Have you also experienced: 12-hour work has become the norm, and you can't refuse to go to work even if you are sick. I can't feel how much value my efforts have created. Every time I communicate with the boss about the needs, he only talks about KPI and time, without considering your psychological pressure at all.
But on the big tree of the Internet, there are countless business opportunities, and Python crawlers are a good choice. Python is an easy-to-learn programming language, and it's also the language of choice for many data scientists and web developers. Mastering Python crawler skills, you can crawl more wealth information.
How to get started for Xiaobai:
Before you start learning Python crawlers, you first need to understand some basic knowledge. This knowledge includes web technologies such as the HTTP protocol, HTML, and CSS. Also, you need to know regular expressions as it is a necessary tool for parsing web pages.
How long does it take Xiaobai to learn Python crawlers
The time required to learn Python crawlers varies from person to person, but generally speaking, it takes about 2-4 months to master the basic knowledge and skills for a zero-based entry. If you are a computer major, you can learn it completely in the summer vacation. Here are some of my personal suggestions for ordinary people:
Week 1 :
1. Spend 3-4 hours a day learning the basic knowledge of Python, such as basic syntax, data types, control structures and functions, which can be learned through online tutorials, video courses and books.
2. Learn the common libraries of Python, such as requests, BeautifulSoup, etc.
Week 2-3:
1. Spend 2-3 hours a day practicing writing simple crawlers. You can start with some entry-level projects, such as crawling some simple web page data.
2. Learn to use crawler frameworks, such as BeautifulSoup and Scrapy.
Week 4-5:
1. Spend 2-3 hours a day learning how to process and store crawled data, such as using Pandas library for data cleaning and data analysis, using database for data storage, etc.
2. Learn to use data analysis and visualization tools, such as Matplotlib and Seaborn.
Week 6-7:
1. Spend 3-4 hours every day learning the principles and methods of anti-crawler technology, such as using proxy, random UA, encryption, etc. to anti-crawler.
2. Learn to use commonly used network security tools, such as firewalls, intrusion detection systems, etc.
Week 8:
Comprehensively apply the knowledge you have learned, and try to complete some complex projects, such as crawling data from large websites, analyzing large amounts of data, etc. Summarize and evaluate your own learning results, find problems and improve them in time.
In just 2 months, you can actually learn through some online tutorials, video courses, books, etc., and you can also adjust it according to your actual time, but you must persist. In the process of learning, we must pay attention to practice and exploration, participate in discussions in communities and forums, communicate and share experiences with other learners, in order to better master Python crawler skills.
What part-time jobs can you do after learning reptiles?
- data collection
Data collection is the most common type of crawler part-time job. You can use crawler technology to collect data from major websites, and then organize the data into formats required by customers, such as Excel, CSV, etc. The operation steps of data collection part-time work mainly include: determining the target website, writing crawler programs, obtaining data, processing data, delivering to customers, and so on.
- Automated operations
Automated operation refers to the realization of automated operation and management tasks by writing programs. For example, you can write an automated program to post content on social media, moderate comments, etc. The operation steps of automated operation part-time work mainly include: analyzing customer needs, formulating operation strategies, writing programs, deploying operations, maintenance management, etc.
- Image and Video Processing
If you like to take photos or videos, then you can use crawler technology to get other people's photos and videos. You can then edit and manipulate these images and videos to create more engaging content. Finally, you can post this content on your website or social media to attract more attention.
Summarize
Python crawler technology is a very important data acquisition and analysis skill that can be applied in all walks of life. However, you need to pay attention not to abuse the crawler program, so as not to violate the privacy of others or disrupt the normal operation of the website.
Difficult to organize and obtain data
Data collection
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