Where to install third-party libraries in python

How to install third-party libraries in Python

Where to install third-party libraries?

Python’s third-party libraries are mainly installed in the following two directories:

• User directory: ~/.local/lib/ python3.x/site-packages
• System directory: /usr/local/lib/python3.x/site-packages

How to install third-party libraries?

There are several methods to install third-party libraries:

1. Use pip

pip is Python’s built-in package management tool . To install third-party libraries using pip, follow these steps:

<code># 确保已安装 pip
python -m ensurepip

# 使用 pip 安装第三方库
pip install <包名></code>

2. Using conda

conda is a package and environment management tool that comes with the Anaconda distribution . To install third-party libraries using conda, follow these steps:

<code># 创建或选择一个 conda 环境
conda create -n <环境名> python=3.x

# 使用 conda 安装第三方库
conda install -c <频道名> <包名></code>

3. Install from source

Some third-party libraries can be installed by installing from source . To install a third-party library from source, follow these steps:

• Download the source code package for the library.
• Unzip the source code package.
• Navigate to the unzipped directory and run the following command:

<code>python setup.py install</code>

Select the installation directory

By default, third-party libraries will Installed in the user directory. If you wish to install the library in a system directory, you can use the --target option:

<code>pip install --target=/usr/local/lib/python3.x/site-packages <包名></code>

Repositories and Channels

• When installing a library with pip, you can specify a repository, such as PyPI (https://pypi.org).
• When conda installs the library, you can specify the channel, such as conda-forge.

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