pip3 installation guide for Python3

A simple tutorial for installing pip3 with Python3

Python is an excellent programming language with a rich ecosystem and powerful libraries. In order to better use Python for development, we usually need to install some third-party libraries. And pip3 is Python's package management tool, which can easily install, upgrade and delete third-party libraries.

This article will introduce a simple tutorial for installing pip3 in Python3 to help readers easily obtain pip3 and better manage Python libraries. The following are the specific steps:

Step 1: Check the Python version

Before installing pip3, we first need to check the Python version. Open a terminal or command prompt and enter the following command:

python3 --version

If a result similar to Python 3.x.x is displayed, you have installed Python3. If Python3 is not installed, please install Python3 first.

Step 2: Download the get-pip script

Enter the following command on the command line to download the get-pip.py script:

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py

Note: If you do not have curl installed , please install curl first.

Step 3: Install pip3

In a terminal or command prompt, use the following command to install pip3:

python3 get-pip.py

This command will run the get-pip.py script and Install pip3 into your Python environment.

Step 4: Verify whether pip3 installation is successful

In the terminal or command prompt, enter the following command to verify whether pip3 is successfully installed:

pip3 --version

If it displays something similar to # The result of ##pip 21.3.1 indicates that pip3 is installed successfully.

At this point, you have successfully installed pip3. You can use pip3 to easily install, upgrade and delete various Python libraries.

The following are some commonly used pip3 command examples:

Install the library:

1. pip3 install <库名>

For example, install the numpy library:

pip3 install numpy

Upgrade library:

2. pip3 install --upgrade <库名>

For example, upgrade numpy library:

pip3 install --upgrade numpy

Delete library:

3. pip3 uninstall <库名>

For example, delete numpy library ：

pip3 uninstall numpy

In addition to the above basic usage methods, pip3 has more functions and options. You can view more detailed instructions by entering the

pip3 --help command.

Summary:

This article introduces a simple tutorial for installing pip3 in Python3. By downloading the get-pip script and running the installation, you can quickly obtain pip3. pip3 is Python's package management tool, which facilitates users to install, upgrade and delete various third-party libraries. I hope this article can be helpful to readers and enable you to better use Python for development.

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