How to install a specific version of software using pip

The method of using pip to install a specific version requires specific code examples

During the development process, sometimes we need to install a specific version of a software package. Installing a specific version of a package via pip (the Python package manager) is very easy. This article explains how to use pip to install a specific version of a package and provides specific code examples.

There are two ways to install a specific version of a software package, one is to install by specifying the version number, the other is to install by specifying a specific file. We will introduce the implementation of these two methods one by one.

1. Install a specific version of a package by version number

First, we need to determine the version number of the package to be installed. The required version number can be found on the package's official website or at pypi.org.

It is very simple to install a specific version of a software package using pip. You only need to add the name and version number of the software package after the pip install command.

pip install 包名==版本号

For example, if we want to install the 1.19.0 version of the numpy package, we can use the following command:

pip install numpy==1.19.0

2. Install a specific version of the package through a file

Sometimes, we may need to install a specific file instead of specifying a version number. You can save the package's file locally and install it using the pip command.

First, save the software package file in a local directory. Then, use the following command to install the file:

pip install 文件路径

For example, if we want to install a package file named my_package-1.0.tar.gz, we can use the following command:

pip install /path/to/my_package-1.0.tar.gz

This The version of the specified file will be installed.

Summary:

This article describes how to use pip to install a specific version of a software package. We can easily install the required package version by specifying the version number or file path. Hope this article can be helpful to you!

The above is the detailed content of How to install a specific version of software using pip. For more information, please follow other related articles on the PHP Chinese website!