René's URL Explorer Experiment

Title: python-patterns/python-singleton.md at master · github-jinwei/python-patterns · GitHub

Open Graph Title: python-patterns/python-singleton.md at master · github-jinwei/python-patterns

X Title: python-patterns/python-singleton.md at master · github-jinwei/python-patterns

Description: 董伟明老师写的 Python 设计模式：http://dongweiming.github.io/archives.html - python-patterns/python-singleton.md at master · github-jinwei/python-patterns

Open Graph Description: 董伟明老师写的 Python 设计模式：http://dongweiming.github.io/archives.html - github-jinwei/python-patterns

X Description: 董伟明老师写的 Python 设计模式：http://dongweiming.github.io/archives.html - github-jinwei/python-patterns

Opengraph URL: https://github.com/github-jinwei/python-patterns/blob/master/python-singleton.md

X: @github

direct link

Domain: github.com

route-pattern	/:user_id/:repository/blob/name(/path)
route-controller	blob
route-action	show
fetch-nonce	v2:c34ef166-4e32-5c70-f2a7-bbfd4b6eaaef
current-catalog-service-hash	f3abb0cc802f3d7b95fc8762b94bdcb13bf39634c40c357301c4aa1d67a256fb
request-id	D1FA:24B6F:33F1A7B:4A576B7:6A568B5F
html-safe-nonce	43ab9ee35aa62bbc7a56f942bb17b33942187fbc8e55c479ab340143064368f4
visitor-payload	eyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJEMUZBOjI0QjZGOjMzRjFBN0I6NEE1NzZCNzo2QTU2OEI1RiIsInZpc2l0b3JfaWQiOiI3Mjg3OTMwMTM1NzY4MzcwMDE1IiwicmVnaW9uX2VkZ2UiOiJpYWQiLCJyZWdpb25fcmVuZGVyIjoiaWFkIn0=
visitor-hmac	6d822d7cdb18d41e4675684202def70312d1ba5cd66bb49c7028fa1f4f85c5a4
hovercard-subject-tag	repository:112285939
github-keyboard-shortcuts	repository,source-code,file-tree,copilot
google-site-verification	Apib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I
octolytics-url	https://collector.github.com/github/collect
analytics-location	///blob/show
fb:app_id	1401488693436528
apple-itunes-app	app-id=1477376905, app-argument=https://github.com/github-jinwei/python-patterns/blob/master/python-singleton.md
twitter:image	https://opengraph.githubassets.com/bfdf0998f5f957fda58e873b5db0b92b41a053b9a64c713307aba67903cd48d1/github-jinwei/python-patterns
twitter:card	summary_large_image
og:image	https://opengraph.githubassets.com/bfdf0998f5f957fda58e873b5db0b92b41a053b9a64c713307aba67903cd48d1/github-jinwei/python-patterns
og:image:alt	董伟明老师写的 Python 设计模式：http://dongweiming.github.io/archives.html - github-jinwei/python-patterns
og:image:width	1200
og:image:height	600
og:site_name	GitHub
og:type	object
hostname	github.com
expected-hostname	github.com
None	8f21be8503ba8fe6154df415b855c03af52eae3f285bd6ae1fef041dc053da38
turbo-cache-control	no-cache
go-import	github.com/github-jinwei/python-patterns git https://github.com/github-jinwei/python-patterns.git
octolytics-dimension-user_id	16819190
octolytics-dimension-user_login	github-jinwei
octolytics-dimension-repository_id	112285939
octolytics-dimension-repository_nwo	github-jinwei/python-patterns
octolytics-dimension-repository_public	true
octolytics-dimension-repository_is_fork	true
octolytics-dimension-repository_parent_id	85264021
octolytics-dimension-repository_parent_nwo	peterdocter/python-patterns
octolytics-dimension-repository_network_root_id	85264021
octolytics-dimension-repository_network_root_nwo	peterdocter/python-patterns
turbo-body-classes	logged-out env-production page-responsive
disable-turbo	false
browser-stats-url	https://api.github.com/_private/browser/stats
browser-errors-url	https://api.github.com/_private/browser/errors
release	78af172a48a2056810bb627ffa684003e4f9a5ca
ui-target	full
theme-color	#1e2327
color-scheme	light dark

Links:

Skip to content	https://github.com/github-jinwei/python-patterns/blob/master/python-singleton.md#start-of-content
	https://github.com/
Sign in	https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fgithub-jinwei%2Fpython-patterns%2Fblob%2Fmaster%2Fpython-singleton.md
GitHub CopilotWrite better code with AI	https://github.com/features/copilot
GitHub Copilot appDirect agents from issue to merge	https://github.com/features/ai/github-app
MCP RegistryNewIntegrate external tools	https://github.com/mcp
ActionsAutomate any workflow	https://github.com/features/actions
CodespacesInstant dev environments	https://github.com/features/codespaces
IssuesPlan and track work	https://github.com/features/issues
Code ReviewManage code changes	https://github.com/features/code-review
GitHub Advanced SecurityFind and fix vulnerabilities	https://github.com/security/advanced-security
Code securitySecure your code as you build	https://github.com/security/advanced-security/code-security
Secret protectionStop leaks before they start	https://github.com/security/advanced-security/secret-protection
Why GitHub	https://github.com/why-github
Documentation	https://docs.github.com
Blog	https://github.blog
Changelog	https://github.blog/changelog
Marketplace	https://github.com/marketplace
View all features	https://github.com/features
Enterprises	https://github.com/enterprise
Small and medium teams	https://github.com/team
Startups	https://github.com/enterprise/startups
Nonprofits	https://github.com/solutions/industry/nonprofits
App Modernization	https://github.com/solutions/use-case/app-modernization
DevSecOps	https://github.com/solutions/use-case/devsecops
DevOps	https://github.com/solutions/use-case/devops
CI/CD	https://github.com/solutions/use-case/ci-cd
View all use cases	https://github.com/solutions/use-case
Healthcare	https://github.com/solutions/industry/healthcare
Financial services	https://github.com/solutions/industry/financial-services
Manufacturing	https://github.com/solutions/industry/manufacturing
Government	https://github.com/solutions/industry/government
View all industries	https://github.com/solutions/industry
View all solutions	https://github.com/solutions
AI	https://github.com/resources/articles?topic=ai
Software Development	https://github.com/resources/articles?topic=software-development
DevOps	https://github.com/resources/articles?topic=devops
Security	https://github.com/resources/articles?topic=security
View all topics	https://github.com/resources/articles
Customer stories	https://github.com/customer-stories
Events & webinars	https://github.com/resources/events
Ebooks & reports	https://github.com/resources/whitepapers
Business insights	https://github.com/solutions/executive-insights
GitHub Skills	https://skills.github.com
Documentation	https://docs.github.com
Customer support	https://support.github.com
Community forum	https://github.com/orgs/community/discussions
Trust center	https://github.com/trust-center
Partners	https://github.com/partners
View all resources	https://github.com/resources
GitHub SponsorsFund open source developers	https://github.com/open-source/sponsors
Security Lab	https://securitylab.github.com
Maintainer Community	https://maintainers.github.com
Accelerator	https://github.com/open-source/accelerator
GitHub Stars	https://stars.github.com
Archive Program	https://archiveprogram.github.com
Topics	https://github.com/topics
Trending	https://github.com/trending
Collections	https://github.com/collections
Enterprise platformAI-powered developer platform	https://github.com/enterprise
GitHub Advanced SecurityEnterprise-grade security features	https://github.com/security/advanced-security
Copilot for BusinessEnterprise-grade AI features	https://github.com/features/copilot/copilot-business
Premium SupportEnterprise-grade 24/7 support	https://github.com/enterprise/premium-support
Pricing	https://github.com/pricing
Search syntax tips	https://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
documentation	https://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
Sign in	https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fgithub-jinwei%2Fpython-patterns%2Fblob%2Fmaster%2Fpython-singleton.md
Sign up	https://github.com/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E%2Fblob%2Fshow&source=header-repo&source_repo=github-jinwei%2Fpython-patterns
Reload	https://github.com/github-jinwei/python-patterns/blob/master/python-singleton.md
Reload	https://github.com/github-jinwei/python-patterns/blob/master/python-singleton.md
Reload	https://github.com/github-jinwei/python-patterns/blob/master/python-singleton.md
github-jinwei	https://github.com/github-jinwei
python-patterns	https://github.com/github-jinwei/python-patterns
peterdocter/python-patterns	https://github.com/peterdocter/python-patterns
Notifications	https://github.com/login?return_to=%2Fgithub-jinwei%2Fpython-patterns
Fork 0	https://github.com/login?return_to=%2Fgithub-jinwei%2Fpython-patterns
Star 1	https://github.com/login?return_to=%2Fgithub-jinwei%2Fpython-patterns
Code	https://github.com/github-jinwei/python-patterns
Pull requests 0	https://github.com/github-jinwei/python-patterns/pulls
Actions	https://github.com/github-jinwei/python-patterns/actions
Projects	https://github.com/github-jinwei/python-patterns/projects
Wiki	https://github.com/github-jinwei/python-patterns/wiki
Security and quality 0	https://github.com/github-jinwei/python-patterns/security
Insights	https://github.com/github-jinwei/python-patterns/pulse
Code	https://github.com/github-jinwei/python-patterns
Pull requests	https://github.com/github-jinwei/python-patterns/pulls
Actions	https://github.com/github-jinwei/python-patterns/actions
Projects	https://github.com/github-jinwei/python-patterns/projects
Wiki	https://github.com/github-jinwei/python-patterns/wiki
Security and quality	https://github.com/github-jinwei/python-patterns/security
Insights	https://github.com/github-jinwei/python-patterns/pulse
	https://github.com/github-jinwei/python-patterns
python-patterns	https://github.com/github-jinwei/python-patterns/tree/master
History	https://github.com/github-jinwei/python-patterns/commits/master/python-singleton.md
	https://github.com/github-jinwei/python-patterns/commits/master/python-singleton.md
python-patterns	https://github.com/github-jinwei/python-patterns/tree/master
Raw	https://github.com/github-jinwei/python-patterns/raw/refs/heads/master/python-singleton.md
python设计模式之单例模式	http://dongweiming.github.io/python-singleton.html
	https://github.com/github-jinwei/python-patterns/blob/master/python-singleton.md#python设计模式之单例模式
	https://github.com/github-jinwei/python-patterns/blob/master/python-singleton.md#单例模式
	https://github.com/github-jinwei/python-patterns/blob/master/python-singleton.md#python的例子
	https://github.com/github-jinwei/python-patterns/blob/master/python-singleton.md#和pymongo相关的温馨提示
	https://github.com
Terms	https://docs.github.com/site-policy/github-terms/github-terms-of-service
Privacy	https://docs.github.com/site-policy/privacy-policies/github-privacy-statement
Security	https://github.com/security
Status	https://www.githubstatus.com/
Community	https://github.community/
Docs	https://docs.github.com/
Contact	https://support.github.com?tags=dotcom-footer

Viewport: width=device-width

URLs of crawlers that visited me.