- Daniel Arbuckle's Mastering Python
- Daniel Arbuckle
- 242字
- 2021-07-02 21:09:35
Managing installed packages
The pip tool can do more than just installing packages. It can also give us the following:
- A list of currently installed packages using the -m pip list command:

- Upgrade currently installed packages to the newest version using the -m pip install --upgrade command:

- Uninstall packages that we don't need anymore using the -m pip uninstall command. For example, if we want to uninstall the banknumber package, we can do it by using the following command, shown in this screenshot:

In short, it's a complete cross-platform management tool for Python packages.
Some Python packages require that we be able to compile extensions written in the C programming language to install them, but fortunately that's becoming rare. Normally, if the compiled extension is required, pip will be able to find and install the proper precompiled version automatically. The majority of available packages are pure Python anyhow and don't require compilation.
The pip tool has many more great options and command-line switches, but what we've seen so far covers the common situations well. If you want to dig into it further, pip's help command will give you the details. For example, consider the following command:
pip help install
The preceding command prints out all the information you could possibly want about the pip install option:

So, now that we know how to install third-party packages using pip, how do we go about actually finding packages to install in the first place?
推薦閱讀
- Python程序設計教程(第2版)
- Building a Home Security System with Raspberry Pi
- Learning C++ Functional Programming
- Mastering Kotlin
- bbPress Complete
- Android開發案例教程與項目實戰(在線實驗+在線自測)
- 小程序,巧應用:微信小程序開發實戰(第2版)
- Java編程從入門到精通
- Instant jQuery Boilerplate for Plugins
- Fastdata Processing with Spark
- 面向對象分析與設計(第3版)
- Puppet Cookbook(Third Edition)
- Python自動化運維:技術與最佳實踐
- Java Web程序開發參考手冊
- Unity 游戲案例開發大全