Home Backend Development Python Tutorial How to install python library

How to install python library

Oct 26, 2019 am 10:36 AM
python

How to install python library

How to install the python library?

1. Preparation work

(Only do the preparation work once, it will be very convenient in the future)

Recommendation: "python tutorial"

1. Install pip

(1) Download pip to D:\download

pip download address: https://pypi.python.org/pypi/pip#downloads

How to install python library

(2) After downloading, extract it to the current directory;

(3) "win R" to enter cmd; enter the following code in sequence:

C:\Users\Administrator>cd D:\download\pip-9.0.1
C:\Users\Administrator>d: 
D:\download\pip-9.0.1>python setup.py install

(4) Configure environment variables:

Add the pip installation path in PATH: Script folder under the python installation path

How to install python library

(5 ) Complete

Re-"win R" to enter cmd; run the following code directly:

Run: pip -V or pip --version, display the version information of pip

How to install python library

2. Install wheel

(for offline installation of downloaded whl files)

"win R" to enter cmd; directly run the following code:

pip install wheel

2. Install third-party libraries

1. Online installation

Run directly in the cmd window: pip install package name, such as pip install requests

Note: When installing in this way, the third-party library will be automatically downloaded and will not be deleted after the installation is completed. If you need to delete it, please go to its default download path and delete it manually;

default for win7 Path://AppData may be a hidden folder

c:\User\(your username)\AppData\Local\pip\cache\

Default path for linux:

~/.cache/pip

In fact, there is no need to delete the cache. You can disable the cache by adding --no-cache-dir.

2. Offline installation

(1) Download

Download the .whl file of the required library at http://www.lfd.uci.edu/~gohlke/pythonlibs/. Note that the cp** in the file name should be the same as The installed version matches. If you install Python2.7, you should download the corresponding cp27 .whl file

(2) Install

and run: pip install **.whl, provided that wheel has been installed.

3. Unzip and install

Rename the .whl suffix to zip, unzip it, and put the unzipped folder into Python/Lib/site-packages

The above is the detailed content of How to install python library. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undress AI Tool

Undress AI Tool

Undress images for free

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

What are class methods in Python What are class methods in Python Aug 21, 2025 am 04:12 AM

ClassmethodsinPythonareboundtotheclassandnottoinstances,allowingthemtobecalledwithoutcreatinganobject.1.Theyaredefinedusingthe@classmethoddecoratorandtakeclsasthefirstparameter,referringtotheclassitself.2.Theycanaccessclassvariablesandarecommonlyused

python asyncio queue example python asyncio queue example Aug 21, 2025 am 02:13 AM

asyncio.Queue is a queue tool for secure communication between asynchronous tasks. 1. The producer adds data through awaitqueue.put(item), and the consumer uses awaitqueue.get() to obtain data; 2. For each item you process, you need to call queue.task_done() to wait for queue.join() to complete all tasks; 3. Use None as the end signal to notify the consumer to stop; 4. When multiple consumers, multiple end signals need to be sent or all tasks have been processed before canceling the task; 5. The queue supports setting maxsize limit capacity, put and get operations automatically suspend and do not block the event loop, and the program finally passes Canc

How to run a Python script and see the output in a separate panel in Sublime Text? How to run a Python script and see the output in a separate panel in Sublime Text? Aug 17, 2025 am 06:06 AM

ToseePythonoutputinaseparatepanelinSublimeText,usethebuilt-inbuildsystembysavingyourfilewitha.pyextensionandpressingCtrl B(orCmd B).2.EnsurethecorrectbuildsystemisselectedbygoingtoTools→BuildSystem→Pythonandconfirming"Python"ischecked.3.Ifn

How to use regular expressions with the re module in Python? How to use regular expressions with the re module in Python? Aug 22, 2025 am 07:07 AM

Regular expressions are implemented in Python through the re module for searching, matching and manipulating strings. 1. Use re.search() to find the first match in the entire string, re.match() only matches at the beginning of the string; 2. Use brackets() to capture the matching subgroups, which can be named to improve readability; 3. re.findall() returns all non-overlapping matches, and re.finditer() returns the iterator of the matching object; 4. re.sub() replaces the matching text and supports dynamic function replacement; 5. Common patterns include \d, \w, \s, etc., you can use re.IGNORECASE, re.MULTILINE, re.DOTALL, re

How to build and run Python in Sublime Text? How to build and run Python in Sublime Text? Aug 22, 2025 pm 03:37 PM

EnsurePythonisinstalledbyrunningpython--versionorpython3--versionintheterminal;ifnotinstalled,downloadfrompython.organdaddtoPATH.2.InSublimeText,gotoTools>BuildSystem>NewBuildSystem,replacecontentwith{"cmd":["python","-

How to use variables and data types in Python How to use variables and data types in Python Aug 20, 2025 am 02:07 AM

VariablesinPythonarecreatedbyassigningavalueusingthe=operator,anddatatypessuchasint,float,str,bool,andNoneTypedefinethekindofdatabeingstored,withPythonbeingdynamicallytypedsotypecheckingoccursatruntimeusingtype(),andwhilevariablescanbereassignedtodif

How to pass command-line arguments to a script in Python How to pass command-line arguments to a script in Python Aug 20, 2025 pm 01:50 PM

Usesys.argvforsimpleargumentaccess,whereargumentsaremanuallyhandledandnoautomaticvalidationorhelpisprovided.2.Useargparseforrobustinterfaces,asitsupportsautomatichelp,typechecking,optionalarguments,anddefaultvalues.3.argparseisrecommendedforcomplexsc

How to debug a remote Python application in VSCode How to debug a remote Python application in VSCode Aug 30, 2025 am 06:17 AM

To debug a remote Python application, you need to use debugpy and configure port forwarding and path mapping: First, install debugpy on the remote machine and modify the code to listen to port 5678, forward the remote port to the local area through the SSH tunnel, then configure "AttachtoRemotePython" in VSCode's launch.json and correctly set the localRoot and remoteRoot path mappings. Finally, start the application and connect to the debugger to realize remote breakpoint debugging, variable checking and code stepping. The entire process depends on debugpy, secure port forwarding and precise path matching.

See all articles