Detailed explanation of how to switch pip installation source in Python

1. Introduction to pip

Pip is a tool for installing python packages. It provides the functions of installing packages, listing installed packages, upgrading packages and uninstalling packages.

Pip is a replacement for easy_install and provides the same function of finding packages as easy_install. Therefore, packages that can be installed using easy_install can also be installed using pip.

2. Source configuration under Linux

Check if the pip.conf file exists

>> cd ~

>> mkdir .pip

>> ls ~/.pip

3. Edit source

Option 1: Edit pip.conf directly

sudo vi ~/.pip/pip.conf

[global] 
index-url = http://mirrors.aliyun.com/pypi/simple/ 
[install] 
trusted-host=mirrors.aliyun.com 

Option 2:

pip install turtle --trusted-host mirrors.aliyun.com 

4. Test comparison

Speed ​​using default source:

 Downloading alembic-0.8.0.tar.gz (918kB) 
  100% |████████████████████████████████| 921kB 9.9kB/s  
Collecting beautifulsoup4==4.4.1 (from -r requirements.txt (line 2)) 
 Downloading beautifulsoup4-4.4.1-py2-none-any.whl (81kB) 
  100% |████████████████████████████████| 81kB 5.2kB/s  
Collecting cffi==1.2.1 (from -r requirements.txt (line 3)) 
 Downloading cffi-1.2.1.tar.gz (335kB) 
  100% |████████████████████████████████| 337kB 15kB/s  
Collecting chardet==2.3.0 (from -r requirements.txt (line 4)) 
 Downloading chardet-2.3.0.tar.gz (164kB) 
  100% |████████████████████████████████| 174kB 9.4kB/s  
Collecting cryptography==1.0 (from -r requirements.txt (line 5)) 
 Downloading cryptography-1.0.tar.gz (331kB) 
  100% |████████████████████████████████| 337kB 7.1kB/s  
Collecting Django==1.8.4 (from -r requirements.txt (line 6)) 
 Downloading Django-1.8.4-py2.py3-none-any.whl (6.2MB) 
  100% |████████████████████████████████| 6.2MB 16kB/s  

Speed ​​using domestic sources:

Collecting alembic==0.8.0 (from -r requirements.txt (line 1)) 
 Downloading http://mirrors.aliyun.com/pypi/packages/9f/e6/d261c6958d418bcb542b8f79fae7fcf14f7f647f891d42c4ed86a499d690/alembic-0.8.0.tar.gz (918kB) 
  100% |████████████████████████████████| 921kB 160kB/s  
Collecting beautifulsoup4==4.4.1 (from -r requirements.txt (line 2)) 
 Downloading http://mirrors.aliyun.com/pypi/packages/33/62/f3e97eaa87fc4de0cb9b8c51d253cf0df621c6de6b25164dcbab203e5ff7/beautifulsoup4-4.4.1-py2-none-any.whl (81kB) 
  100% |████████████████████████████████| 81kB 630kB/s  
Collecting cffi==1.2.1 (from -r requirements.txt (line 3)) 
 Downloading http://mirrors.aliyun.com/pypi/packages/22/86/b4ae6aeec29105cd2faa07ed2f647349fbcad502d880cb504dca84368853/cffi-1.2.1.tar.gz (335kB) 
  100% |████████████████████████████████| 337kB 1.4MB/s  
Collecting chardet==2.3.0 (from -r requirements.txt (line 4)) 
 Downloading http://mirrors.aliyun.com/pypi/packages/7d/87/4e3a3f38b2f5c578ce44f8dc2aa053217de9f0b6d737739b0ddac38ed237/chardet-2.3.0.tar.gz (164kB) 
  100% |████████████████████████████████| 174kB 1.1MB/s  
Collecting cryptography==1.0 (from -r requirements.txt (line 5)) 
 Downloading http://mirrors.aliyun.com/pypi/packages/60/1f/8cf32f1fa61efafea7d4fcdcb5080c073f99ada1d2a436527bc392f2f8ea/cryptography-1.0.tar.gz (331kB) 
  100% |████████████████████████████████| 337kB 1.3MB/s  
Collecting Django==1.8.4 (from -r requirements.txt (line 6)) 

Relatively speaking, the speed has increased not just a little bit, but as fast as flying.

5. Summary

Okay, that’s the entire content of this article. When you encounter a problem, you have to find a way to solve it. There is always a way to solve the problem you encounter. This is the charm of technology. I hope the content of this article can be of some help to everyone's study or work. If you have any questions, you can leave a message to communicate.