René's URL Explorer Experiment


Title: Python 3.9

Open Graph Title: Python 3.9

X Title: Python 3.9

Description: Python 3.9 is out (and has been for a while, I’m late posting this), with new features and changes. The themes for this release have been heavily internal improvements, such as a new more powerful parser, and the usual static typing improvements, along with a several bits new-user facing new syntax. This makes 3.9 a smaller release, but still it has some nice features of note.

Open Graph Description: Python 3.9 is out (and has been for a while, I’m late posting this), with new features and changes. The themes for this release have been heavily internal improvements, such as a new more powerful parser, and the usual static typing improvements, along with a several bits new-user facing new syntax. This makes 3.9 a smaller release, but still it has some nice features of note.

X Description: Python 3.9 is out (and has been for a while, I’m late posting this), with new features and changes. The themes for this release have been heavily internal improvements, such as a new more …

Mail addresses
henryfs@princeton.edu

Opengraph URL: https://iscinumpy.dev/post/python-39/

X: @HenrySchreiner3

Generator: Hugo 0.161.1

direct link

Domain: iscinumpy.dev


Hey, it has json ld scripts:
{"@context":"https://schema.org","@graph":[{"@id":"https://iscinumpy.dev/#website","@type":"WebSite","name":"ISciNumPy.dev","publisher":{"@id":"https://iscinumpy.dev/#organization"},"url":"https://iscinumpy.dev/"},{"@id":"https://iscinumpy.dev/#organization","@type":"Organization","name":"Henry Schreiner","url":"https://iscinumpy.dev/"},{"@id":"https://iscinumpy.dev/post/python-39/#breadcrumb","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","item":"https://iscinumpy.dev/","name":"Home","position":1},{"@type":"ListItem","item":"https://iscinumpy.dev/post/","name":"Posts","position":2},{"@type":"ListItem","item":"https://iscinumpy.dev/post/python-39/","name":"Python 3.9","position":3}]},{"@id":"https://iscinumpy.dev/post/python-39/#webpage","@type":"WebPage","breadcrumb":{"@id":"https://iscinumpy.dev/post/python-39/#breadcrumb"},"isPartOf":{"@id":"https://iscinumpy.dev/#website"},"name":"Python 3.9","url":"https://iscinumpy.dev/post/python-39/"},{"@id":"https://iscinumpy.dev/#author-henry-schreiner","@type":"Person","name":"Henry Schreiner","url":"https://iscinumpy.dev/"},{"@id":"https://iscinumpy.dev/post/python-39/#article","@type":"Article","author":[{"@id":"https://iscinumpy.dev/#author-henry-schreiner"}],"dateCreated":"2021-02-12T12:00:00-04:00","dateModified":"2026-06-09T15:40:47-04:00","datePublished":"2021-02-12T12:00:00-04:00","description":"Python 3.9 is out (and has been for a while, I’m late posting this), with new features and changes. The themes for this release have been heavily internal improvements, such as a new more powerful parser, and the usual static typing improvements, along with a several bits new-user facing new syntax. This makes 3.9 a smaller release, but still it has some nice features of note.\n","headline":"Python 3.9","image":"https://iscinumpy.dev/images/avatar.jpg","inLanguage":"en","keywords":["programming","python","pyupgrade"],"mainEntityOfPage":{"@id":"https://iscinumpy.dev/post/python-39/#webpage"},"publisher":{"@id":"https://iscinumpy.dev/#organization"},"wordCount":739}]}

NoneIE=edge
authorHenry Schreiner
og:site_nameISciNumPy.dev
og:localeen_us
og:typearticle
article:sectionpost
article:published_time2021-02-12T12:00:00-04:00
article:modified_time2026-06-09T15:40:47-04:00
article:tagPyupgrade
twitter:imagehttps://iscinumpy.dev/images/avatar.jpg
twitter:cardsummary_large_image
twitter:creator@HenrySchreiner3

Links:

ISciNumPy.devhttps://iscinumpy.dev/
Linkshttps://iscinumpy.dev/post/python-39/
Useful Linkshttps://iscinumpy.dev/page/useful-links/
Softwarehttps://iscinumpy.dev/page/software/
Writinghttps://iscinumpy.dev/page/writing/
Presentationshttps://iscinumpy.dev/page/presentations/
Illustrations and videoshttps://iscinumpy.dev/page/illustrations/
My UC sitehttps://hschrein.web.cern.ch/hschrein/
Sitehttps://iscinumpy.dev/post/python-39/
Archiveshttps://iscinumpy.dev/page/archive/
Tagshttps://iscinumpy.dev/tags/
Categorieshttps://iscinumpy.dev/categories/
Abouthttps://iscinumpy.dev/post/python-39/
About mehttps://iscinumpy.dev/page/about/
My projectshttps://iscinumpy.dev/page/projects/
https://iscinumpy.dev/
Henry Schreinerhttps://iscinumpy.dev/
2→3https://iscinumpy.dev/post/python-3-upgrade
3.7https://iscinumpy.dev/post/python-37
3.8https://iscinumpy.dev/post/python-38
3.10https://iscinumpy.dev/post/python-310
3.11https://iscinumpy.dev/post/python-311
3.12https://iscinumpy.dev/post/python-312
3.13https://iscinumpy.dev/post/python-313
3.14https://iscinumpy.dev/post/python-314
3.15https://iscinumpy.dev/post/python-315
Official docshttps://docs.python.org/3/whatsnew/3.9.html
RealPython articlehttps://realpython.com/python39-new-features/
DeepSourcehttps://deepsource.io/blog/python-3-9-whats-new/
2→3https://iscinumpy.dev/post/python-3-upgrade
3.7https://iscinumpy.dev/post/python-37
3.8https://iscinumpy.dev/post/python-38
3.10https://iscinumpy.dev/post/python-310
3.11https://iscinumpy.dev/post/python-311
3.12https://iscinumpy.dev/post/python-312
3.13https://iscinumpy.dev/post/python-313
3.14https://iscinumpy.dev/post/python-314
3.15https://iscinumpy.dev/post/python-315
Pythonhttps://iscinumpy.dev/categories/python/
programminghttps://iscinumpy.dev/tags/programming/
pythonhttps://iscinumpy.dev/tags/python/
pyupgradehttps://iscinumpy.dev/tags/pyupgrade/
https://iscinumpy.dev/post/setup-apple-silicon/
https://iscinumpy.dev/post/announcing-cli11-20/
Previous Posthttps://iscinumpy.dev/post/setup-apple-silicon/
Next Post https://iscinumpy.dev/post/announcing-cli11-20/
Dict merginghttps://iscinumpy.dev/post/python-39/#dict-merging
Generics for type hintinghttps://iscinumpy.dev/post/python-39/#generics-for-type-hinting
Smaller featureshttps://iscinumpy.dev/post/python-39/#smaller-features
Stdlibhttps://iscinumpy.dev/post/python-39/#stdlib
Time zoneshttps://iscinumpy.dev/post/python-39/#time-zones
Topological sortinghttps://iscinumpy.dev/post/python-39/#topological-sorting
Otherhttps://iscinumpy.dev/post/python-39/#other
Other developer changeshttps://iscinumpy.dev/post/python-39/#other-developer-changes
Final wordshttps://iscinumpy.dev/post/python-39/#final-words
Sourceshttps://iscinumpy.dev/post/python-39/#sources
https://www.facebook.com/henryschreineriii
https://github.com/henryiii
https://gitlab.com/henryiii
https://twitter.com/HenrySchreiner3
https://reddit.com/u/henryschreineriii
https://linkedin.com/in/in/henryiii
https://stackoverflow.com/users/2402816
https://www.youtube.com/henryschreiner
https://fosstodon.org/@henryiii
https://bsky.app/profile/henryiii.bsky.social
https://iscinumpy.dev/index.xml
Henry Schreinerhttps://iscinumpy.dev/
ISciNumPy.devhttps://iscinumpy.dev/
Hugo v0.161.1https://gohugo.io
Beautiful Hugohttps://github.com/halogenica/beautifulhugo
Beautiful Jekyllhttps://deanattali.com/beautiful-jekyll/
41dc7d2bhttps://gitlab.com/iscinumpy/iscinumpy.gitlab.io/-/tree/41dc7d2b452a43aa9d875539269b92f82008a44c

Viewport: width=device-width,initial-scale=1,maximum-scale=1


URLs of crawlers that visited me.