René's URL Explorer Experiment

Title: GitHub - trekhleb/learn-python: 📚 Playground and cheatsheet for learning Python. Collection of Python scripts that are split by topics and contain code examples with explanations. · GitHub

Open Graph Title: GitHub - trekhleb/learn-python: 📚 Playground and cheatsheet for learning Python. Collection of Python scripts that are split by topics and contain code examples with explanations.

X Title: GitHub - trekhleb/learn-python: 📚 Playground and cheatsheet for learning Python. Collection of Python scripts that are split by topics and contain code examples with explanations.

Description: 📚 Playground and cheatsheet for learning Python. Collection of Python scripts that are split by topics and contain code examples with explanations. - trekhleb/learn-python

Open Graph Description: 📚 Playground and cheatsheet for learning Python. Collection of Python scripts that are split by topics and contain code examples with explanations. - trekhleb/learn-python

X Description: 📚 Playground and cheatsheet for learning Python. Collection of Python scripts that are split by topics and contain code examples with explanations. - trekhleb/learn-python

Opengraph URL: https://github.com/trekhleb/learn-python

X: @github

direct link

Domain: Github.com

route-pattern	/:user_id/:repository
route-controller	files
route-action	disambiguate
fetch-nonce	v2:e2f42067-c5c1-b9f5-08ec-e4ef4fa13cc5
current-catalog-service-hash	f3abb0cc802f3d7b95fc8762b94bdcb13bf39634c40c357301c4aa1d67a256fb
request-id	C1A4:216E04:7E45F8:A90E08:6A618452
html-safe-nonce	98ac525cdc8af6364b51a9e7b95a313da7404593a64aa5460e9f510f35280a5e
visitor-payload	eyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJDMUE0OjIxNkUwNDo3RTQ1Rjg6QTkwRTA4OjZBNjE4NDUyIiwidmlzaXRvcl9pZCI6IjI4ODk5MTYwMzg3ODMyNzIwMTgiLCJyZWdpb25fZWRnZSI6ImlhZCIsInJlZ2lvbl9yZW5kZXIiOiJpYWQifQ==
visitor-hmac	dcc373f27795dbc0a0e48b0215db4170b200304dbe819603e5291710d1c29348
hovercard-subject-tag	repository:146619556
github-keyboard-shortcuts	repository,copilot
google-site-verification	Apib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I
octolytics-url	https://collector.github.com/github/collect
analytics-location	//
fb:app_id	1401488693436528
apple-itunes-app	app-id=1477376905, app-argument=https://github.com/trekhleb/learn-python
twitter:image	https://repository-images.githubusercontent.com/146619556/010dd080-4d26-11ea-8350-5916fe9db853
twitter:card	summary_large_image
og:image	https://repository-images.githubusercontent.com/146619556/010dd080-4d26-11ea-8350-5916fe9db853
og:image:alt	📚 Playground and cheatsheet for learning Python. Collection of Python scripts that are split by topics and contain code examples with explanations. - trekhleb/learn-python
og:site_name	GitHub
og:type	object
hostname	github.com
expected-hostname	github.com
None	c28c2f6607f2aacbd934868d997038895c9780d08babfe918550d73773326f4c
turbo-cache-control	no-cache
go-import	github.com/trekhleb/learn-python git https://github.com/trekhleb/learn-python.git
octolytics-dimension-user_id	3000285
octolytics-dimension-user_login	trekhleb
octolytics-dimension-repository_id	146619556
octolytics-dimension-repository_nwo	trekhleb/learn-python
octolytics-dimension-repository_public	true
octolytics-dimension-repository_is_fork	false
octolytics-dimension-repository_network_root_id	146619556
octolytics-dimension-repository_network_root_nwo	trekhleb/learn-python
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	cd05235d52ffb3318513d883a56c87a121015c8b
ui-target	full
theme-color	#1e2327
color-scheme	light dark

Links:

Skip to content	https://Github.com/trekhleb/learn-python#start-of-content
	https://Github.com/
Sign in	https://Github.com/login?return_to=https%3A%2F%2Fgithub.com%2Ftrekhleb%2Flearn-python
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
Code QualityEnforce quality at merge	https://github.com/features/code-quality
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%2Ftrekhleb%2Flearn-python
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&source=header-repo&source_repo=trekhleb%2Flearn-python
Reload	https://Github.com/trekhleb/learn-python
Reload	https://Github.com/trekhleb/learn-python
Reload	https://Github.com/trekhleb/learn-python
trekhleb	https://Github.com/trekhleb
learn-python	https://Github.com/trekhleb/learn-python
Notifications	https://Github.com/login?return_to=%2Ftrekhleb%2Flearn-python
Fork 3k	https://Github.com/login?return_to=%2Ftrekhleb%2Flearn-python
Star 18.1k	https://Github.com/login?return_to=%2Ftrekhleb%2Flearn-python
Code	https://Github.com/trekhleb/learn-python
Issues 17	https://Github.com/trekhleb/learn-python/issues
Pull requests 26	https://Github.com/trekhleb/learn-python/pulls
Actions	https://Github.com/trekhleb/learn-python/actions
Security and quality 0	https://Github.com/trekhleb/learn-python/security
Insights	https://Github.com/trekhleb/learn-python/pulse
Code	https://Github.com/trekhleb/learn-python
Issues	https://Github.com/trekhleb/learn-python/issues
Pull requests	https://Github.com/trekhleb/learn-python/pulls
Actions	https://Github.com/trekhleb/learn-python/actions
Security and quality	https://Github.com/trekhleb/learn-python/security
Insights	https://Github.com/trekhleb/learn-python/pulse
	https://Github.com/trekhleb/learn-python
Branches	https://Github.com/trekhleb/learn-python/branches
Tags	https://Github.com/trekhleb/learn-python/tags
	https://Github.com/trekhleb/learn-python/branches
	https://Github.com/trekhleb/learn-python/tags
60 Commits	https://Github.com/trekhleb/learn-python/commits/master/
	https://Github.com/trekhleb/learn-python/commits/master/
src	https://Github.com/trekhleb/learn-python/tree/master/src
src	https://Github.com/trekhleb/learn-python/tree/master/src
.flake8	https://Github.com/trekhleb/learn-python/blob/master/.flake8
.flake8	https://Github.com/trekhleb/learn-python/blob/master/.flake8
.gitignore	https://Github.com/trekhleb/learn-python/blob/master/.gitignore
.gitignore	https://Github.com/trekhleb/learn-python/blob/master/.gitignore
.travis.yml	https://Github.com/trekhleb/learn-python/blob/master/.travis.yml
.travis.yml	https://Github.com/trekhleb/learn-python/blob/master/.travis.yml
CODE_OF_CONDUCT.md	https://Github.com/trekhleb/learn-python/blob/master/CODE_OF_CONDUCT.md
CODE_OF_CONDUCT.md	https://Github.com/trekhleb/learn-python/blob/master/CODE_OF_CONDUCT.md
LICENSE	https://Github.com/trekhleb/learn-python/blob/master/LICENSE
LICENSE	https://Github.com/trekhleb/learn-python/blob/master/LICENSE
README.es-ES.md	https://Github.com/trekhleb/learn-python/blob/master/README.es-ES.md
README.es-ES.md	https://Github.com/trekhleb/learn-python/blob/master/README.es-ES.md
README.md	https://Github.com/trekhleb/learn-python/blob/master/README.md
README.md	https://Github.com/trekhleb/learn-python/blob/master/README.md
README.pt-BR.md	https://Github.com/trekhleb/learn-python/blob/master/README.pt-BR.md
README.pt-BR.md	https://Github.com/trekhleb/learn-python/blob/master/README.pt-BR.md
README.uk-UA.md	https://Github.com/trekhleb/learn-python/blob/master/README.uk-UA.md
README.uk-UA.md	https://Github.com/trekhleb/learn-python/blob/master/README.uk-UA.md
README.zh-TW.md	https://Github.com/trekhleb/learn-python/blob/master/README.zh-TW.md
README.zh-TW.md	https://Github.com/trekhleb/learn-python/blob/master/README.zh-TW.md
_config.yml	https://Github.com/trekhleb/learn-python/blob/master/_config.yml
_config.yml	https://Github.com/trekhleb/learn-python/blob/master/_config.yml
pylintrc	https://Github.com/trekhleb/learn-python/blob/master/pylintrc
pylintrc	https://Github.com/trekhleb/learn-python/blob/master/pylintrc
requirements.txt	https://Github.com/trekhleb/learn-python/blob/master/requirements.txt
requirements.txt	https://Github.com/trekhleb/learn-python/blob/master/requirements.txt
README	https://Github.com/trekhleb/learn-python
Code of conduct	https://Github.com/trekhleb/learn-python
MIT license	https://Github.com/trekhleb/learn-python
	https://Github.com/trekhleb/learn-python#playground-and-cheatsheet-for-learning-python
IS BEING ATTACKED	https://war.ukraine.ua/
Serhiy Prytula Charity Foundation	https://prytulafoundation.org/en/
Come Back Alive Charity Foundation	https://savelife.in.ua/en/donate-en/
National Bank of Ukraine	https://bank.gov.ua/en/news/all/natsionalniy-bank-vidkriv-spetsrahunok-dlya-zboru-koshtiv-na-potrebi-armiyi
war.ukraine.ua	https://war.ukraine.ua/
MFA of Ukraine	https://twitter.com/MFA_Ukraine
	https://travis-ci.org/trekhleb/learn-python
topics	https://Github.com/trekhleb/learn-python#table-of-contents
Português	https://Github.com/trekhleb/learn-python/blob/master/README.pt-BR.md
Español	https://Github.com/trekhleb/learn-python/blob/master/README.es-ES.md
Traditional Chinese	https://Github.com/trekhleb/learn-python/blob/master/README.zh-TW.md
Українська	https://Github.com/trekhleb/learn-python/blob/master/README.uk-UA.md
test it out	https://Github.com/trekhleb/learn-python#testing-the-code
lint the code	https://Github.com/trekhleb/learn-python#linting-the-code
standard Python statements and constructions	https://Github.com/trekhleb/learn-python#table-of-contents
Interactive Machine Learning Experiments	https://github.com/trekhleb/machine-learning-experiments
	https://Github.com/trekhleb/learn-python#how-to-use-this-repository
Find the topic	https://Github.com/trekhleb/learn-python#table-of-contents
Run tests	https://Github.com/trekhleb/learn-python#testing-the-code
lint the code	https://Github.com/trekhleb/learn-python#linting-the-code
	https://Github.com/trekhleb/learn-python#table-of-contents
What is Python	https://Github.com/trekhleb/learn-python/blob/master/src/getting_started/what_is_python.md
Python Syntax	https://Github.com/trekhleb/learn-python/blob/master/src/getting_started/python_syntax.md
Variables	https://Github.com/trekhleb/learn-python/blob/master/src/getting_started/test_variables.py
Arithmetic Operators	https://Github.com/trekhleb/learn-python/blob/master/src/operators/test_arithmetic.py
Bitwise Operators	https://Github.com/trekhleb/learn-python/blob/master/src/operators/test_bitwise.py
Assignment Operators	https://Github.com/trekhleb/learn-python/blob/master/src/operators/test_assigment.py
Comparison Operator	https://Github.com/trekhleb/learn-python/blob/master/src/operators/test_comparison.py
Logical Operators	https://Github.com/trekhleb/learn-python/blob/master/src/operators/test_logical.py
Identity Operators	https://Github.com/trekhleb/learn-python/blob/master/src/operators/test_identity.py
Membership Operators	https://Github.com/trekhleb/learn-python/blob/master/src/operators/test_membership.py
Numbers	https://Github.com/trekhleb/learn-python/blob/master/src/data_types/test_numbers.py
Strings	https://Github.com/trekhleb/learn-python/blob/master/src/data_types/test_strings.py
Lists	https://Github.com/trekhleb/learn-python/blob/master/src/data_types/test_lists.py
Tuples	https://Github.com/trekhleb/learn-python/blob/master/src/data_types/test_tuples.py
Sets	https://Github.com/trekhleb/learn-python/blob/master/src/data_types/test_sets.py
Dictionaries	https://Github.com/trekhleb/learn-python/blob/master/src/data_types/test_dictionaries.py
Type Casting	https://Github.com/trekhleb/learn-python/blob/master/src/data_types/test_type_casting.py
The if statement	https://Github.com/trekhleb/learn-python/blob/master/src/control_flow/test_if.py
The for statement	https://Github.com/trekhleb/learn-python/blob/master/src/control_flow/test_for.py
The while statement	https://Github.com/trekhleb/learn-python/blob/master/src/control_flow/test_while.py
The try statements	https://Github.com/trekhleb/learn-python/blob/master/src/control_flow/test_try.py
The break statement	https://Github.com/trekhleb/learn-python/blob/master/src/control_flow/test_break.py
The continue statement	https://Github.com/trekhleb/learn-python/blob/master/src/control_flow/test_continue.py
Function Definition	https://Github.com/trekhleb/learn-python/blob/master/src/functions/test_function_definition.py
Scopes of Variables Inside Functions	https://Github.com/trekhleb/learn-python/blob/master/src/functions/test_function_scopes.py
Default Argument Values	https://Github.com/trekhleb/learn-python/blob/master/src/functions/test_function_default_arguments.py
Keyword Arguments	https://Github.com/trekhleb/learn-python/blob/master/src/functions/test_function_keyword_arguments.py
Arbitrary Argument Lists	https://Github.com/trekhleb/learn-python/blob/master/src/functions/test_function_arbitrary_arguments.py
Unpacking Argument Lists	https://Github.com/trekhleb/learn-python/blob/master/src/functions/test_function_unpacking_arguments.py
Lambda Expressions	https://Github.com/trekhleb/learn-python/blob/master/src/functions/test_lambda_expressions.py
Documentation Strings	https://Github.com/trekhleb/learn-python/blob/master/src/functions/test_function_documentation_string.py
Function Annotations	https://Github.com/trekhleb/learn-python/blob/master/src/functions/test_function_annotations.py
Function Decorators	https://Github.com/trekhleb/learn-python/blob/master/src/functions/test_function_decorators.py
Class Definition	https://Github.com/trekhleb/learn-python/blob/master/src/classes/test_class_definition.py
Class Objects	https://Github.com/trekhleb/learn-python/blob/master/src/classes/test_class_objects.py
Instance Objects	https://Github.com/trekhleb/learn-python/blob/master/src/classes/test_instance_objects.py
Method Objects	https://Github.com/trekhleb/learn-python/blob/master/src/classes/test_method_objects.py
Class and Instance Variables	https://Github.com/trekhleb/learn-python/blob/master/src/classes/test_class_and_instance_variables.py
Inheritance	https://Github.com/trekhleb/learn-python/blob/master/src/classes/test_inheritance.py
Multiple Inheritance	https://Github.com/trekhleb/learn-python/blob/master/src/classes/test_multiple_inheritance.py
Modules	https://Github.com/trekhleb/learn-python/blob/master/src/modules/test_modules.py
Packages	https://Github.com/trekhleb/learn-python/blob/master/src/modules/test_packages.py
Handling Exceptions	https://Github.com/trekhleb/learn-python/blob/master/src/exceptions/test_handle_exceptions.py
Raising Exceptions	https://Github.com/trekhleb/learn-python/blob/master/src/exceptions/test_raise_exceptions.py
Reading and Writing	https://Github.com/trekhleb/learn-python/blob/master/src/files/test_file_reading.py
Methods of File Objects	https://Github.com/trekhleb/learn-python/blob/master/src/files/test_file_methods.py
The pass statement	https://Github.com/trekhleb/learn-python/blob/master/src/additions/test_pass.py
Generators	https://Github.com/trekhleb/learn-python/blob/master/src/additions/test_generators.py
Serialization	https://Github.com/trekhleb/learn-python/blob/master/src/standard_libraries/test_json.py
File Wildcards	https://Github.com/trekhleb/learn-python/blob/master/src/standard_libraries/test_glob.py
String Pattern Matching	https://Github.com/trekhleb/learn-python/blob/master/src/standard_libraries/test_re.py
Mathematics	https://Github.com/trekhleb/learn-python/blob/master/src/standard_libraries/test_math.py
Dates and Times	https://Github.com/trekhleb/learn-python/blob/master/src/standard_libraries/test_datetime.py
Data Compression	https://Github.com/trekhleb/learn-python/blob/master/src/standard_libraries/test_zlib.py
Terminal input	https://Github.com/trekhleb/learn-python/blob/master/src/user_input/test_input.py
	https://Github.com/trekhleb/learn-python#prerequisites
Python3 installed	https://realpython.com/installing-python/
venv	https://docs.python.org/3/library/venv.html
	https://Github.com/trekhleb/learn-python#testing-the-code
pytest	https://docs.pytest.org/en/latest/
	https://Github.com/trekhleb/learn-python#linting-the-code
pylint	http://pylint.pycqa.org/
flake8	http://flake8.pycqa.org/en/latest/
	https://Github.com/trekhleb/learn-python#pylint
PEP 8	https://www.python.org/dev/peps/pep-0008/
More about PyLint	http://pylint.pycqa.org/
	https://Github.com/trekhleb/learn-python#flake8
PEP 8	https://www.python.org/dev/peps/pep-0008/
More about Flake8	http://flake8.pycqa.org/en/latest/
	https://Github.com/trekhleb/learn-python#author
@trekhleb	https://trekhleb.dev
python	https://Github.com/topics/python
programming-language	https://Github.com/topics/programming-language
learning	https://Github.com/topics/learning
learning-python	https://Github.com/topics/learning-python
python3	https://Github.com/topics/python3
learning-by-doing	https://Github.com/topics/learning-by-doing
Readme	https://Github.com/trekhleb/learn-python#readme-ov-file
MIT license	https://Github.com/trekhleb/learn-python#MIT-1-ov-file
Code of conduct	https://Github.com/trekhleb/learn-python#coc-ov-file
Please reload this page	https://Github.com/trekhleb/learn-python
Activity	https://Github.com/trekhleb/learn-python/activity
3k forks	https://Github.com/trekhleb/learn-python/forks
Report repository	https://Github.com/contact/report-content?content_url=https%3A%2F%2Fgithub.com%2Ftrekhleb%2Flearn-python&report=trekhleb+%28user%29
Releases	https://Github.com/trekhleb/learn-python/releases
Packages 0	https://Github.com/users/trekhleb/packages?repo_name=learn-python
Please reload this page	https://Github.com/trekhleb/learn-python
Please reload this page	https://Github.com/trekhleb/learn-python
Contributors	https://Github.com/trekhleb/learn-python/graphs/contributors
Please reload this page	https://Github.com/trekhleb/learn-python
Python 100.0%	https://Github.com/trekhleb/learn-python/search?l=python
	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.