The use of Python PIP command

Jabami Mengzi 2020-11-10 10:44:29
use python pip command


1.pip What is it? ?

pip yes python Package management tools ,python3.4 The above versions have integrated the tool , We can do it in cmd of use pip --version/pip3 --version command ( They correspond to each other 2.X and 3.X) To determine whether to install . If you use 2.x If the old version is not installed , Please look at the next section .

2.pip Download and install of

2.1 pip download

Get into https://pypi.org/project/pip/ Select the file download in the red box

2.2 Linux Lower installation

# tar -xzvf pip-20.2.4.tar.gz decompression
# cd pip-20.2.4 Enter the unzip file
# python setup.py install install 

2.3 windows Lower installation

The download file is the same as 2.1, After the download is completed, unzip it to get

We use it CMD Go to this directory , Input python setup.py install Command to install

If it's a re install , After the installation, we can input directly pip Confirm the installation

If this is the first installation , We also need to configure environment variables

Pictured above

such pip Just install it .

2.4 pip Update

cmd Input in

python -m pip install --upgrade pip

3.pip Use

3.1 Installation package

pip install Installation package name 

The following prompt appears , The installation is successful

3.1.1 Set domestic image source

pip The download speed in China is not ideal , So we need to use domestic mirror source to install

  • Temporary use

pip When adding parameters -i Image source address , for example

pip install bs4 -i https://pypi.tuna.tsinghua.edu.cn/simple 

This will download from Tsinghua mirror source bs4 library

Common image source address

    • tsinghua :https://pypi.tuna.tsinghua.edu.cn/simple
    • Alibaba cloud :http://mirrors.aliyun.com/pypi/simple/
    • University of science and technology of China https://pypi.mirrors.ustc.edu.cn/simple/
    • douban :http://pypi.douban.com/simple/
  • Permanent change
    • linux

modify ~/.pip/pip.conf ( No create a folder and file . Folder to add “.”, Means to hide the folder ), The contents of the document are as follows

[global]
index-url = https://pypi.tuna.tsinghua.edu.cn/simple
[install]
trusted-host = mirrors.aliyun.com
    • windows

Create in user directory pip Folder , Then create it in the folder pip.ini The configuration file , Fill in the same format

3.2 Displays information about installed packages

pip show Package name 

Pictured , Shows the name of the package , Version number , Package function , Home page of package 、 Author's contact information 、 license , Installation position , rely on .

3.3 Update package

pip install --upgrade Package name to update 

3.3.1 Query for updatable packages

pip list --outdated

3.3.2 Batch update packages

(1) utilize pip-review Batch update of packages

cmd Enter the following command

pip install pip-review
pip-review --local --interactive

(2) utilize pip Write the following code to update

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import pip
from pip._internal.utils.misc import get_installed_distributions
from subprocess import call
for dist in get_installed_distributions():
print(dist)
if not 'pip' in str(dist):
call('pip3 install --upgrade %s -i https://pypi.tuna.tsinghua.edu.cn/simple' % dist.project_name, shell=True)

3.4 Uninstall package

pip uninstall The name of the package to be unloaded 

Pictured , We're going to unload pygame library

Input y Are you sure to uninstall , If you have the above prompt, it means that the uninstall is successful .

4.pip Argument parsing

# pip --help
Usage:
pip<command>[options]
Commands:
install Installation package .
uninstall Uninstall package .
freeze Output the list of installed packages in a certain format
list List installed packages .
show Show package details .
search Search package , similar yum Inside search.
wheel Buildwheelsfromyourrequirements.
zip Not recommended .Zipindividualpackages.
unzip Not recommended .Unzipindividualpackages.
bundle Not recommended .Createpybundles.
help Current help .
GeneralOptions:
-h,--help Display help .
-v,--verbose More output , You can use at most 3 Time
-V,--version Real version information and exit .
-q,--quiet Minimum output .
--log-file<path> The way coverage records verbose Error log , Default file :/root/.pip/pip.log
--log<path> Don't cover records verbose Output log .
--proxy<proxy> Specifyaproxyintheform[user:passwd@]proxy.server:port.
--timeout<sec> Connection timeout ( Default 15 second ).
--exists-action<action> Defaultactionwhenapathalreadyexists:(s)witch,(i)gnore,(w)ipe,(b)ackup.
--cert<path> certificate .

 

版权声明
本文为[Jabami Mengzi]所创,转载请带上原文链接,感谢

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