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

(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

(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

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!
Hot AI Tools
Undress AI Tool
Undress images for free
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
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
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?
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?
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?
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
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
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
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.


