How to import third-party libraries in pycharm

To import third-party libraries with pycharm, you only need to install the library through pip and add it to the project dependencies, and then import it in the code. Detailed introduction: 1. Use pip to install the third-party library, enter the pip install command in the terminal window of PyCharm to install; 2. Add the library to the project dependencies, click on the project folder, select "File" -> "Settings", In the settings dialog, select "Project: your_project_name" and so on.

The operating system for this tutorial: Windows 10 system, Python version 3.11.4, DELL G3 computer.

Importing third-party libraries in PyCharm is usually very simple. Third-party libraries are Python code packages written by other developers to provide various functions such as data science, web development, GUI programming, etc. The following are the basic steps for importing third-party libraries into PyCharm:

1. Use pip to install third-party libraries:

Before importing third-party libraries into PyCharm, you You need to ensure that the corresponding third-party libraries have been installed. Normally, you can use Python's package management tool pip to install third-party libraries. Enter the following command in the terminal window of PyCharm to install the third-party library:

pip install

For example, if you need to install the numpy library, you can enter in the terminal:

pip install numpy

This will automatically download and Install the numpy library into your Python environment.

2. Add the library to the project dependencies:

Before using a third-party library, you need to add it to the project's dependencies. This ensures that other developers on the project can run your project correctly in their environments. In PyCharm you can add libraries to project dependencies by following these steps:

• Click on the project folder and select "File" -> "Settings".

• In the settings dialog box, select "Project: your_project_name" -> "Python Interpreter".

• In the interpreter page, you will see all the third-party libraries installed in your Python environment. Click the " " button to search and add the library you need.

3. Import the third-party library into the Python code:

Once you have installed and added the third-party library to the project dependencies, You can import these libraries and start using them in your Python code in PyCharm. In your Python code, you usually need to use the import keyword to import third-party libraries.

import library_name

Alternatively, you can use an alias to import the library:

import library_name as alias

After importing the library, you can use the functions, classes, variables, etc. defined in it to program.

4. Create a requirements.txt file:

A common practice is to create a requirements.txt file in the project, which lists the requirements of the project. All third-party libraries and their versions. This makes it easier for other developers to install the same dependencies in their environment. Creating the requirements.txt file in PyCharm is very simple:

• Right-click in the project root directory and select "New" -> "File".

• Enter "requirements.txt" as the file name.

• List the third-party libraries and version numbers required by the project in the file, one line for each library.

5. Use PyCharm’s auto-complete function:

PyCharm provides a powerful auto-complete function that can help you quickly import third-party libraries. . When you type a library name, PyCharm automatically detects installed libraries and makes suggestions accordingly. You can use shortcut keys to quickly import libraries, or use PyCharm's auto-repair feature to automatically complete import statements.

In short, importing third-party libraries in PyCharm is very simple. You only need to install the library through pip and add it to the project dependencies, and then import it in the code. PyCharm's powerful functions and friendly user interface can help you manage and use third-party libraries efficiently and improve programming efficiency.

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