Python development is smoother: pip installation tutorial from domestic sources

pip Domestic Source Installation Tutorial: To make your Python development smoother, specific code examples are needed

In Python development, it is very important to use pip to manage third-party libraries Common. However, due to well-known reasons, sometimes using the official pip source directly will encounter problems such as slow download speed and inability to connect. In order to solve this problem, some excellent domestic sources of pip have emerged in China, such as Alibaba Cloud, Tencent Cloud, Douban, etc. Using these domestic sources can greatly improve download speed and improve the efficiency of Python development.

This article will introduce how to set up pip domestic source, and provide specific code examples so that you can get started easily.

First, we need to install pip. During the installation of Python, pip is usually installed automatically. If it is not installed, you can enter the following command on the command line to install it:

python get-pip.py

After installing pip, we can use the following command to view the current default source:

pip config get global.index-url

The output result should be It is the official source https://pypi.org/simple/. Now we need to change the default source to domestic source.

Next, we will take Alibaba Cloud as an example to introduce how to set up the pip source. First, enter the following command on the command line:

pip config set global.index-url https://mirrors.aliyun.com/pypi/simple/

After execution, we check the pip source again:

pip config get global.index-url

The output result should be the source address of Alibaba Cloud https://mirrors. aliyun.com/pypi/simple/ . In this way, we have successfully set the pip source to Alibaba Cloud.

In addition to Alibaba Cloud, Tencent Cloud, Douban, etc. all provide their own pip sources. The usage method is similar, just replace the corresponding source address into the command. For example, if you want to use Douban's source, you can execute the following command:

pip config set global.index-url https://pypi.douban.com/simple/

Now, we have successfully set up the pip source. Next, let's verify it.

Enter the following command on the command line to install a sample library requests:

pip install requests

If the previous source speed was too slow, you should be able to clearly feel the download speed increase at this time. After the installation is completed, we can execute the following code to verify whether the installation is successful:

import requests

response = requests.get("https://www.example.com")
print(response.text)

If no error is reported and the web page content can be output normally, it means that the requests library has been successfully installed and can be used normally.

In addition to setting the global pip source, we can also set different sources for specific projects. In the root directory of the project, create a file named pip.conf (modify it if it already exists) and write the following content:

[global]
index-url = https://mirrors.aliyun.com/pypi/simple/

Taking Alibaba Cloud as an example, you only need to place this file in In the project root directory, you can use Alibaba Cloud's sources in the project.

To sum up, by setting the domestic source of pip, we can solve problems such as slow download speed and inability to connect, and improve the efficiency of Python development. This article takes Alibaba Cloud as an example to introduce how to set up the pip source, and provides specific code examples to verify whether the setting is successful. I hope it can help everyone and make Python development smoother!

mission completed!

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