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This article is to share with you what to do if python installs third-party libraries too slowly. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Why is pip so slow?

Let's learn about pip first.

Pip is a very popular python package management tool, and you can automatically install third-party libraries by typing pip install package_name on the command line.

However, pip downloads library files from pypi. Pypi is the warehouse of the official third-party library of python. It uses a foreign server, so the download speed is naturally very slow.

So it's not pip slow, it's pypi slow.

One way to solve the problem of slow installation is to download it through domestic mirror websites. The mirror website completely copies the content of pypi and puts it on the domestic server.

In this way, you only need to change the download source of pip to a mirror station, and you can enjoy the smooth and fast installation of pip.

Temporary configuration

For a simple example, use Tsinghua Mirror Source to install a third-party library, and enter:

Pip install-I https://pypi.tuna.tsinghua.edu.cn/simple package_name

To explain by installing pandas, if the mirror source is not replaced:

Pip install pandas

Replace with Tsinghua Mirror Source:

Pip install-I https://pypi.tuna.tsinghua.edu.cn/simple pandas

The mirror source of Tsinghua pypi is updated every five minutes. It is large and comprehensive. It is recommended for everyone to use. Here is the URL:

Https://pypi.tuna.tsinghua.edu.cn/simple

There are other mirror sources to choose from in China:

Douban http://pypi.douban.com/simple/ Ali http://mirrors.aliyun.com/pypi/simple/ http://pypi.mirrors.ustc.edu.cn/simple/ permanent configuration of University of Science and Technology of China

The above usage is temporary configuration, which means that each time you install the library, you must bring the URL of the mirror source. Actually, this is not very convenient.

If you want to save energy, you should configure the mirror source permanently. Once configured, just enter

Pip install package_name

You can quickly install the library.

Permanently configuring the mirror source is also simple and can be divided into two methods, automatic and manual.

Automatic configuration. Take the configuration of Tsinghua Source as an example, enter:

Pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple

After the implementation, it will be configured.

Manual configuration, under windows, create a pip directory directly in the user directory, and then create a new file pip.ini.

(for example: C:\ Users\ zhu\ pip\ pip.ini)

Then open the pip.ini file, copy and paste the following, and save it.

[global] index-url = https://pypi.tuna.tsinghua.edu.cn/simple

Configuration was successful.

Benefits of mirrored websites

These domestic mirror sites have a lot of open source tools, not only pypi, you can also download mysql, anaconda, ubuntu, nodejs and other mainstream software, speed leverage.

The following is the mirror station of China University of Science and Technology, which has almost everything.

Web site: https://mirrors.ustc.edu.cn/

Thank you for reading! This is the end of the article on "what to do if python installs third-party libraries too slowly?". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it out for more people to see!

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