Initial setup of PyCharm 2 - open, new project

03. Create/Open a Python Project

3.1 Project Introduction

• A development project is the development of a software designed to solve a complex business function
• Usually each project has a separate and dedicated directory for saving all project-related files

　　　　– A project usually contains many source files

3.2 Open the Python project

• Click the Open button directly, then browse to the directory where the Python file was saved before , you can open the project
• After opening, a new .idea directory will be created in the directory to save project -related information , such as: interpreter version , files included in the project, etc.
• The first time you open the project, you need to wait patiently for PyCharm to set the project initially

 

 

　　Set the interpreter version used by the project

• • 　　If the opened directory is not the project directory created by PyCharm, sometimes the interpreter version used is Python 2.x, and the interpreter version needs to be set separately
  • 　　The settings window can be opened through File / Settings... , as shown in the following figure:

 

 

3.3 New project

1) Naming rules

• In the future, the project name will be numbered in front of the number , and the number will increase as the knowledge point increases.

– For example　　　　: 01_Python_Basic , 02_Branch , 03_Loop ...

• The file are named in the form of hm_xx_knowledge points

　　　　– where xx is the sequence number of the exercise file

• Notice

1. 1. It is recommended to use only lowercase letters , numbers and underscores when naming files
   2. filename cannot start with a number

• New projects can be created through the welcome screen or the menu File / New Project

2) Exercise steps

• Create a new 01_Python basic project and use the Python 3.x interpreter
• Create a new hm_01_hello.py Python file under the project
• Write the print("Hello Python") code

04. Set the font display of PyCharm