[Learn python from scratch] 02. Introduction to development tools

write python code

According to the knowledge we introduced before, we know that the so-called code is actually a piece of ordinary text written according to certain specifications, and then handed over to the computer for analysis and execution. Since it is a piece of text, can we directly use a text editor to encode it? The answer is yes, but when developed in this way, the efficiency will be very low.

1. Common code editing tools

In fact, in our actual work, if we only want to view a certain (several) files, we really use a simple code editing tool to do it.

Common code editing tools:

  • vim (commonly used code editing tool under Linux system)
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  • sublime (a cross-platform, easy-to-use code editing tool)
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  • notepad++ (a code editing tool running on Windows platform)
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The several software development tools introduced above may be used in our work. They all have the function of code highlighting. Some tools can also realize more powerful functions such as automatic code prompting through plug-ins.

2. Run the Python program

Python is an interpreted language that can be executed directly using an interpreter without a compiler. Open a terminal and enter the following command:

python hello.py

Running the hello.py file will output hello world on the console

3. Download and install Pycharm

Although the software described above has been able to improve our coding speed, it still cannot cope with the more complex requirements in our development. In general, we all need tools to help us quickly build the environment, write code, and run programs.

The concept of IDE IDE (Integrated Development Environment) is also known as an integrated development environment. To put it bluntly, there is a software with a graphical interface, which integrates functions such as editing code, compiling code, analyzing code, executing code and debugging code. In our Python development, the most commonly used IDE is Pycharm.

PyCharm is an IDE developed by Czech company JetBrains, which provides code analysis, graphical debugger, integrated tester, integrated version control system, etc., and is mainly used to write Python code.

Download address: http://www.jetbrains.com/pycharm/download
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The main functional areas of PyCharm

  • File navigation area: ability to browse/locate/open project files
  • File editing area: able to edit the currently opened file
  • Console area: able to output program execution content and track the execution of debugging code

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