René's URL Explorer Experiment


Title: GitHub - bonovoice/byte_of_python: A Byte of Python book

Open Graph Title: GitHub - bonovoice/byte_of_python: A Byte of Python book

X Title: GitHub - bonovoice/byte_of_python: A Byte of Python book

Description: A Byte of Python book. Contribute to bonovoice/byte_of_python development by creating an account on GitHub.

Open Graph Description: A Byte of Python book. Contribute to bonovoice/byte_of_python development by creating an account on GitHub.

X Description: A Byte of Python book. Contribute to bonovoice/byte_of_python development by creating an account on GitHub.

Opengraph URL: https://github.com/bonovoice/byte_of_python

X: @github

direct link

Domain: patch-diff.githubusercontent.com

route-pattern/:user_id/:repository
route-controllerfiles
route-actiondisambiguate
fetch-noncev2:25cadc00-b9b4-dc22-4ee8-c32d33c74d4b
current-catalog-service-hashf3abb0cc802f3d7b95fc8762b94bdcb13bf39634c40c357301c4aa1d67a256fb
request-idC1B0:11BAEC:12206CE:18FB50C:697771B4
html-safe-nonceb06ff82ac6e48d4e30a8ba40bc4942f9fc5628599aae5ac26d318e9dcd624b4f
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJDMUIwOjExQkFFQzoxMjIwNkNFOjE4RkI1MEM6Njk3NzcxQjQiLCJ2aXNpdG9yX2lkIjoiODMyODE3NTIwMDU3NDU5OTYwNSIsInJlZ2lvbl9lZGdlIjoiaWFkIiwicmVnaW9uX3JlbmRlciI6ImlhZCJ9
visitor-hmac651c2b3ba2a574fcb6efaedfd01fb3686277f88c629e6ce2f5decf3e4f90d346
hovercard-subject-tagrepository:55961406
github-keyboard-shortcutsrepository,copilot
google-site-verificationApib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I
octolytics-urlhttps://collector.github.com/github/collect
analytics-location//
fb:app_id1401488693436528
apple-itunes-appapp-id=1477376905, app-argument=https://github.com/bonovoice/byte_of_python
twitter:imagehttps://opengraph.githubassets.com/405ca00639c83ff3a09e7e9eaa0bc543dd13c4c1afd3be010a39b3f06778779c/bonovoice/byte_of_python
twitter:cardsummary_large_image
og:imagehttps://opengraph.githubassets.com/405ca00639c83ff3a09e7e9eaa0bc543dd13c4c1afd3be010a39b3f06778779c/bonovoice/byte_of_python
og:image:altA Byte of Python book. Contribute to bonovoice/byte_of_python development by creating an account on GitHub.
og:image:width1200
og:image:height600
og:site_nameGitHub
og:typeobject
hostnamegithub.com
expected-hostnamegithub.com
None9fea6af76c6e24ca5c5728a18d4220d768790d04abe1ba6aafa18526daff96e7
turbo-cache-controlno-preview
go-importgithub.com/bonovoice/byte_of_python git https://github.com/bonovoice/byte_of_python.git
octolytics-dimension-user_id17964440
octolytics-dimension-user_loginbonovoice
octolytics-dimension-repository_id55961406
octolytics-dimension-repository_nwobonovoice/byte_of_python
octolytics-dimension-repository_publictrue
octolytics-dimension-repository_is_forktrue
octolytics-dimension-repository_parent_id6501727
octolytics-dimension-repository_parent_nwoswaroopch/byte-of-python
octolytics-dimension-repository_network_root_id6501727
octolytics-dimension-repository_network_root_nwoswaroopch/byte-of-python
turbo-body-classeslogged-out env-production page-responsive
disable-turbofalse
browser-stats-urlhttps://api.github.com/_private/browser/stats
browser-errors-urlhttps://api.github.com/_private/browser/errors
release6c4a3fa336c0d96309887d0be819777cadd37121
ui-targetfull
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python#start-of-content
https://patch-diff.githubusercontent.com/
Sign in https://patch-diff.githubusercontent.com/login?return_to=https%3A%2F%2Fgithub.com%2Fbonovoice%2Fbyte_of_python
GitHub CopilotWrite better code with AIhttps://github.com/features/copilot
GitHub SparkBuild and deploy intelligent appshttps://github.com/features/spark
GitHub ModelsManage and compare promptshttps://github.com/features/models
MCP RegistryNewIntegrate external toolshttps://github.com/mcp
ActionsAutomate any workflowhttps://github.com/features/actions
CodespacesInstant dev environmentshttps://github.com/features/codespaces
IssuesPlan and track workhttps://github.com/features/issues
Code ReviewManage code changeshttps://github.com/features/code-review
GitHub Advanced SecurityFind and fix vulnerabilitieshttps://github.com/security/advanced-security
Code securitySecure your code as you buildhttps://github.com/security/advanced-security/code-security
Secret protectionStop leaks before they starthttps://github.com/security/advanced-security/secret-protection
Why GitHubhttps://github.com/why-github
Documentationhttps://docs.github.com
Bloghttps://github.blog
Changeloghttps://github.blog/changelog
Marketplacehttps://github.com/marketplace
View all featureshttps://github.com/features
Enterpriseshttps://github.com/enterprise
Small and medium teamshttps://github.com/team
Startupshttps://github.com/enterprise/startups
Nonprofitshttps://github.com/solutions/industry/nonprofits
App Modernizationhttps://github.com/solutions/use-case/app-modernization
DevSecOpshttps://github.com/solutions/use-case/devsecops
DevOpshttps://github.com/solutions/use-case/devops
CI/CDhttps://github.com/solutions/use-case/ci-cd
View all use caseshttps://github.com/solutions/use-case
Healthcarehttps://github.com/solutions/industry/healthcare
Financial serviceshttps://github.com/solutions/industry/financial-services
Manufacturinghttps://github.com/solutions/industry/manufacturing
Governmenthttps://github.com/solutions/industry/government
View all industrieshttps://github.com/solutions/industry
View all solutionshttps://github.com/solutions
AIhttps://github.com/resources/articles?topic=ai
Software Developmenthttps://github.com/resources/articles?topic=software-development
DevOpshttps://github.com/resources/articles?topic=devops
Securityhttps://github.com/resources/articles?topic=security
View all topicshttps://github.com/resources/articles
Customer storieshttps://github.com/customer-stories
Events & webinarshttps://github.com/resources/events
Ebooks & reportshttps://github.com/resources/whitepapers
Business insightshttps://github.com/solutions/executive-insights
GitHub Skillshttps://skills.github.com
Documentationhttps://docs.github.com
Customer supporthttps://support.github.com
Community forumhttps://github.com/orgs/community/discussions
Trust centerhttps://github.com/trust-center
Partnershttps://github.com/partners
GitHub SponsorsFund open source developershttps://github.com/sponsors
Security Labhttps://securitylab.github.com
Maintainer Communityhttps://maintainers.github.com
Acceleratorhttps://github.com/accelerator
Archive Programhttps://archiveprogram.github.com
Topicshttps://github.com/topics
Trendinghttps://github.com/trending
Collectionshttps://github.com/collections
Enterprise platformAI-powered developer platformhttps://github.com/enterprise
GitHub Advanced SecurityEnterprise-grade security featureshttps://github.com/security/advanced-security
Copilot for BusinessEnterprise-grade AI featureshttps://github.com/features/copilot/copilot-business
Premium SupportEnterprise-grade 24/7 supporthttps://github.com/premium-support
Pricinghttps://github.com/pricing
Search syntax tipshttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
documentationhttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
Sign in https://patch-diff.githubusercontent.com/login?return_to=https%3A%2F%2Fgithub.com%2Fbonovoice%2Fbyte_of_python
Sign up https://patch-diff.githubusercontent.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=bonovoice%2Fbyte_of_python
Reloadhttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python
Reloadhttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python
Reloadhttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python
bonovoice https://patch-diff.githubusercontent.com/bonovoice
byte_of_pythonhttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python
swaroopch/byte-of-pythonhttps://patch-diff.githubusercontent.com/swaroopch/byte-of-python
Notifications https://patch-diff.githubusercontent.com/login?return_to=%2Fbonovoice%2Fbyte_of_python
Fork 0 https://patch-diff.githubusercontent.com/login?return_to=%2Fbonovoice%2Fbyte_of_python
Star 0 https://patch-diff.githubusercontent.com/login?return_to=%2Fbonovoice%2Fbyte_of_python
www.swaroopch.com/notes/python/http://www.swaroopch.com/notes/python/
View license https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/LICENSE.asciidoc
0 stars https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/stargazers
1.1k forks https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/forks
Branches https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/branches
Tags https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/tags
Activity https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/activity
Star https://patch-diff.githubusercontent.com/login?return_to=%2Fbonovoice%2Fbyte_of_python
Notifications https://patch-diff.githubusercontent.com/login?return_to=%2Fbonovoice%2Fbyte_of_python
Code https://patch-diff.githubusercontent.com/bonovoice/byte_of_python
Pull requests 0 https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/pulls
Actions https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/actions
Projects 0 https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/projects
Security 0 https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/security
Insights https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/pulse
Code https://patch-diff.githubusercontent.com/bonovoice/byte_of_python
Pull requests https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/pulls
Actions https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/actions
Projects https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/projects
Security https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/security
Insights https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/pulse
Brancheshttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/branches
Tagshttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/tags
https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/branches
https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/tags
207 Commitshttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/commits/master/
https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/commits/master/
programshttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/tree/master/programs
programshttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/tree/master/programs
.gitignorehttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/.gitignore
.gitignorehttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/.gitignore
LICENSE.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/LICENSE.asciidoc
LICENSE.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/LICENSE.asciidoc
README.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/README.asciidoc
README.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/README.asciidoc
about.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/about.asciidoc
about.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/about.asciidoc
basics.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/basics.asciidoc
basics.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/basics.asciidoc
byte_of_python.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/byte_of_python.asciidoc
byte_of_python.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/byte_of_python.asciidoc
commands.bashhttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/commands.bash
commands.bashhttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/commands.bash
control_flow.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/control_flow.asciidoc
control_flow.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/control_flow.asciidoc
data_structures.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/data_structures.asciidoc
data_structures.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/data_structures.asciidoc
dedication.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/dedication.asciidoc
dedication.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/dedication.asciidoc
exceptions.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/exceptions.asciidoc
exceptions.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/exceptions.asciidoc
first_steps.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/first_steps.asciidoc
first_steps.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/first_steps.asciidoc
floss.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/floss.asciidoc
floss.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/floss.asciidoc
frontpage.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/frontpage.asciidoc
frontpage.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/frontpage.asciidoc
functions.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/functions.asciidoc
functions.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/functions.asciidoc
installation.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/installation.asciidoc
installation.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/installation.asciidoc
intro.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/intro.asciidoc
intro.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/intro.asciidoc
io.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/io.asciidoc
io.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/io.asciidoc
modules.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/modules.asciidoc
modules.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/modules.asciidoc
more.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/more.asciidoc
more.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/more.asciidoc
oop.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/oop.asciidoc
oop.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/oop.asciidoc
op_exp.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/op_exp.asciidoc
op_exp.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/op_exp.asciidoc
preface.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/preface.asciidoc
preface.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/preface.asciidoc
problem_solving.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/problem_solving.asciidoc
problem_solving.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/problem_solving.asciidoc
pycharm_command_line_arguments.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_command_line_arguments.png
pycharm_command_line_arguments.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_command_line_arguments.png
pycharm_create_new_project.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_create_new_project.png
pycharm_create_new_project.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_create_new_project.png
pycharm_create_new_project_pure_python.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_create_new_project_pure_python.png
pycharm_create_new_project_pure_python.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_create_new_project_pure_python.png
pycharm_hello_open.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_hello_open.png
pycharm_hello_open.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_hello_open.png
pycharm_new_file_input.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_new_file_input.png
pycharm_new_file_input.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_new_file_input.png
pycharm_new_python_file.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_new_python_file.png
pycharm_new_python_file.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_new_python_file.png
pycharm_open.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_open.png
pycharm_open.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_open.png
pycharm_output.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_output.png
pycharm_output.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_output.png
pycharm_run.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_run.png
pycharm_run.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/pycharm_run.png
revision_history.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/revision_history.asciidoc
revision_history.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/revision_history.asciidoc
stdlib.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/stdlib.asciidoc
stdlib.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/stdlib.asciidoc
terminal_screenshot.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/terminal_screenshot.png
terminal_screenshot.pnghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/terminal_screenshot.png
translation_howto.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/translation_howto.asciidoc
translation_howto.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/translation_howto.asciidoc
translations.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/translations.asciidoc
translations.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/translations.asciidoc
what_next.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/what_next.asciidoc
what_next.asciidochttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/blob/master/what_next.asciidoc
READMEhttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python
Licensehttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python
https://patch-diff.githubusercontent.com/bonovoice/byte_of_python#a-byte-of-python
AsciiDoc formathttp://asciidoctor.org/docs/what-is-asciidoc/
AsciiDoc Syntax Quick Referencehttp://asciidoctor.org/docs/asciidoc-syntax-quick-reference/
commands.bashhttps://github.com/swaroopch/byte_of_python/blob/master/commands.bash
LICENSE.asciidochttps://github.com/swaroopch/byte_of_python/blob/master/LICENSE.asciidoc
fork the repositoryhttps://help.github.com/articles/fork-a-repo
contact the authorhttp://swaroopch.com/contact/
www.swaroopch.com/notes/python/http://www.swaroopch.com/notes/python/
Readme https://patch-diff.githubusercontent.com/bonovoice/byte_of_python#readme-ov-file
View license https://patch-diff.githubusercontent.com/bonovoice/byte_of_python#License-1-ov-file
Please reload this pagehttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python
Activityhttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/activity
0 starshttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/stargazers
1 watchinghttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/watchers
0 forkshttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/forks
Report repository https://patch-diff.githubusercontent.com/contact/report-content?content_url=https%3A%2F%2Fgithub.com%2Fbonovoice%2Fbyte_of_python&report=bonovoice+%28user%29
Releaseshttps://patch-diff.githubusercontent.com/bonovoice/byte_of_python/releases
2 tags https://patch-diff.githubusercontent.com/bonovoice/byte_of_python/tags
Packages 0https://patch-diff.githubusercontent.com/users/bonovoice/packages?repo_name=byte_of_python
https://github.com
Termshttps://docs.github.com/site-policy/github-terms/github-terms-of-service
Privacyhttps://docs.github.com/site-policy/privacy-policies/github-privacy-statement
Securityhttps://github.com/security
Statushttps://www.githubstatus.com/
Communityhttps://github.community/
Docshttps://docs.github.com/
Contacthttps://support.github.com?tags=dotcom-footer

Viewport: width=device-width

URLs of crawlers that visited me.