Python中pip freeze和pip list的区别

Python中pip freeze和pip list的区别

The difference between pip freeze and pip list in Python

pip freeze和之间的区别pip list在于：

• pip freeze以可用于生成requirements.txt文件的需求格式输出用户安装的包。
• pip list输出所有已安装的包，包括可编辑的。

pip freeze用于生成requirements.txt文件

您将最常使用该pip freeze命令来生成
requirements.txt文件。

pip freeze > requirements.txt
pip3 freeze > requirements.txt

requirements.txt文件可用于安装包和重新创建环境。

pip install -r requirements.txt
pip3 install -r requirements.txt

requirements.txt只能从
pip freeze命令的输出生成文件，而不能从pip list.

pip包的名称和特定版本由两个等号分隔，这是用于安装特定版本包的语法。

pip install requests==2.28.0
pip3 install requests==2.28.0

该pip list命令以不同的格式输出包

pip list命令还显示已安装的包及其版本，但格式不同。

You can use the --all option if you need to include the
pip,
setuptools, distrubute and
wheel packages in the
output of pip freeze.

pip freeze --all

The pip list outputs all installed packages, including editables, whereas
pip freeze shows the packages the user installed and their dependencies.

If you don’t use a virtual environment, it is recommended to create one as they
make management of packages much easier.

# 👇️ optionally store currently installed packages in a file
pip freeze > requirements.txt
pip3 freeze > requirements.txt

# 👇️ use correct version of Python when creating VENV
python -m venv venv

# 👇️ activate on Unix or MacOS
source venv/bin/activate

# 👇️ activate on Windows (cmd.exe)
venv\Scripts\activate.bat

# 👇️ activate on Windows (PowerShell)
venv\Scripts\Activate.ps1

# 👇️ Upgrade pip
pip install --upgrade pip

# 👇️ install package in virtual environment
pip install requests

# 👇️ optionally install packages from a `requirements.txt` file
pip install -r requirements.txt
pip3 install -r requirements.txt

If the python -m venv venv command doesn’t work, try one of the following
commands:

• python3 -m venv venv
• py -m venv venv

Make sure to use the correct activation command depending on your operating
system.

Note that the name requirements.txt is just a convention. You can use any to
store the output of the pip freeze command and you can have as many
requirements files as necessary.

# Additional Resources

You can learn more about the related topics by checking out the following
tutorials:

• Pip install multiple requirements files in Python
• How to pip install a package Globally instead of Locally
• Pip install and uninstall in silent, non-interactive mode
• Pip install a specific version of a Python package
• Pip list all available versions of a Python package
• The purpose of pip’s --no-cache-dir option