Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Forward References and Python 3 Type Hints

Sponsored · Your Podcast. Everywhere. Effortlessly. Share. Educate. Inspire. Entertain. You do you. We'll handle the rest. →
Avatar for Daniel Bader Daniel Bader
July 20, 2016
Education
270
0

Forward References and Python 3 Type Hints

Watch the full presentation here: https://www.youtube.com/watch?v=AJsrxBkV3kc

Avatar for Daniel Bader

Daniel Bader

July 20, 2016

More Decks by Daniel Bader

See All by Daniel Bader
How to become a better developer (Mobify Engineering Meeting)
Avatar for Daniel Bader dbader
0
43k
Raspberry-Python-Pi for Hardware Hacking Fun!
Avatar for Daniel Bader dbader
2
220
ME'13 Presentation Slides
Avatar for Daniel Bader dbader
3
1.2k
Android Services
Avatar for Daniel Bader dbader
1
80
Ressourcenverwaltung in SWT
Avatar for Daniel Bader dbader
1
53
TDD Java Exercise
Avatar for Daniel Bader dbader
5
4.9k
A Framework for Remote Usability Evaluation on Mobile Devices
Avatar for Daniel Bader dbader
2
1.7k
Sketch 3D
Avatar for Daniel Bader dbader
1
51

Other Decks in Education

See All in Education
Human Perception and Colour Theory - Lecture 2 - Information Visualisation (4019538FNR)
Avatar for Beat Signer signer
PRO
0
3.1k
タイムマシンのつくりかた
Avatar for Nomizo Nomizo nomizone
3
1.2k
Data Processing and Visualisation Frameworks - Lecture 6 - Information Visualisation (4019538FNR)
Avatar for Beat Signer signer
PRO
1
2.9k
Sponsorship 2026 | VizChitra
Avatar for VizChitra vizchitra
2
170
高校数学とJulia言語
Avatar for Shimizu Dan shimizudan
0
140
反応する前に「受容する」力を鍛える。 自分の安全地帯🌱 を育てよう / Cultivating and sharing ventral vagal safety.
Avatar for Aki spring_aki
0
120
共感から、つくる: 変わり続ける自分と、誰かのための創造
Avatar for Mick Etoh micknerd
1
280
0121
Avatar for cbtlibrary cbtlibrary
0
150
[2026前期火５] 論理学（京都大学文学部 前期 第1回）「ハルシネーションを外部世界との対応を考えずに見分ける方法」
Avatar for Shunsuke Yatabe yatabe
0
250
バージョン管理とは / 01-a-vcs
Avatar for kaityo256 kaityo256
PRO
1
260
演習：Gitの基本操作 / 04-git-basic
Avatar for kaityo256 kaityo256
PRO
0
410
応募課題（’25広島）
Avatar for BocchiMan forget1900
0
980

Featured

See All Featured
The MySQL Ecosystem @ GitHub 2015
Avatar for Sam Lambert samlambert
251
13k
Fantastic passwords and where to find them - at NoRuKo
Avatar for Phil Nash philnash
52
3.6k
Evolving SEO for Evolving Search Engines
Avatar for Ryan Jones ryanjones
0
170
30 Presentation Tips
Avatar for Ian Lurie portentint
PRO
1
270
Why Your Marketing Sucks and What You Can Do About It - Sophie Logan
Avatar for Sophie Logan marketingsoph
0
120
Helping Users Find Their Own Way: Creating Modern Search Experiences
Avatar for Dan Newman danielanewman
31
3.1k
Site-Speed That Sticks
Avatar for Harry Roberts csswizardry
13
1.1k
Designing for humans not robots
Avatar for Tammie Lister tammielis
254
26k
YesSQL, Process and Tooling at Scale
Avatar for Rocio Delgado rocio
174
15k
The Mindset for Success: Future Career Progression
Avatar for Greg Gifford greggifford
PRO
0
300
Statistics for Hackers
Avatar for Jake VanderPlas jakevdp
799
230k
Practical Tips for Bootstrapping Information Extraction Pipelines
Avatar for Matthew Honnibal honnibal
25
1.8k

Transcript

  1. Forward references and Python 3 type hints

  2. How would you type-hint this? class MyClass: def get_instance(self): return

    self

  3. class MyClass: def get_instance(self) -> MyClass: return self ⚡⚡⚡ NameError:

    name 'MyClass' is not defined

  4. ???

  5. PEP 484

  6. def get_instance(self) -> "MyClass": ^^^^^^^^^ !