SlideShare a Scribd company logo
1 of 107
Download to read offline
Performant Python
how to write good, fast, python code
@georgebernhard
bk@xk7.com
how to write good, fast, python code
how to write good, fast, python code
how to write good, fast, python code
how to write good, fast, python code
how to write good, fast, python code
how to write good, fast, python code
import this
Beautiful is better than ugly.
Explicit is better than implicit.
Simple is better than complex.
Complex is better than complicated.
Flat is better than nested.
Sparse is better than dense.
Readability counts.
how to write good, fast, python code
how to write good, fast, python code
how to write good, fast, python code
https://twitter.com/jakevdp/status/850373744644182017
Programmers are expensive
Computers are cheap
how to write good, fast, python code
how to write good, fast, python code
how to write good, fast, python code
how to write good, fast, python code
how to write good, fast, python code
how to write good, fast, python code
Programmers waste enormous amounts of time thinking
about, or worrying about, the speed of noncritical parts of
their programs, and these attempts at efficiency actually have
a strong negative impact when debugging and maintenance
are considered.
Programmers waste enormous amounts of time thinking
about, or worrying about, the speed of noncritical parts of
their programs, and these attempts at efficiency actually have
a strong negative impact when debugging and maintenance
are considered.
We should forget about small efficiencies, say about 97% of
the time: premature optimization is the root of all evil.
Programmers waste enormous amounts of time thinking
about, or worrying about, the speed of noncritical parts of
their programs, and these attempts at efficiency actually have
a strong negative impact when debugging and maintenance
are considered.
We should forget about small efficiencies, say about 97% of
the time: premature optimization is the root of all evil. Yet
we should not pass up our opportunities in that critical
3%.
Donald Knuth
how to write good, fast, python code
Profiling
Batteries included!
python -m cProfile anagram0.py >
profile_anagram0.txt
how to write good, fast, python code
how to write good, fast, python code
Programmers waste enormous amounts of time thinking
about, or worrying about, the speed of noncritical parts of
their programs, and these attempts at efficiency actually have
a strong negative impact when debugging and maintenance
are considered.
We should forget about small efficiencies, say about 97% of
the time: premature optimization is the root of all evil. Yet
we should not pass up our opportunities in that critical
3%.
Donald Knuth
how to write good, fast, python code
Programmers waste enormous amounts of time thinking
about, or worrying about, the speed of noncritical parts of
their programs, and these attempts at efficiency actually have
a strong negative impact when debugging and maintenance
are considered.
We should forget about small efficiencies, say about 97% of
the time: premature optimization is the root of all evil. Yet
we should not pass up our opportunities in that critical
3%.
Donald Knuth
“Premature optimization is the root of all evil, so to start this project I'd better come
up with a system that can determine whether a possible optimization is premature or
not."
Fin.
Micro optimisations
http://www.freeimageslive.co.uk/f
If you want to see my slides on micro optimisations,
you can see them below.
Anagrams
anagram0.py
+ works
+ didn’t take long to write
Python 2.7 FTW!
PyPy FTW FTW!
52 x faster - Datastructures FTW!
What are you doing?
And now for something completely different….
Variations on an almost trivial sum….
Tools
PyParis2017 / Performant python, by Burkhard Kloss
PyParis2017 / Performant python, by Burkhard Kloss
PyParis2017 / Performant python, by Burkhard Kloss
PyParis2017 / Performant python, by Burkhard Kloss
PyParis2017 / Performant python, by Burkhard Kloss
PyParis2017 / Performant python, by Burkhard Kloss
PyParis2017 / Performant python, by Burkhard Kloss
PyParis2017 / Performant python, by Burkhard Kloss

More Related Content

Similar to PyParis2017 / Performant python, by Burkhard Kloss

🌟Is Learning Python Your Career Game-Changer? 🚀🐍
🌟Is Learning Python Your  Career Game-Changer? 🚀🐍🌟Is Learning Python Your  Career Game-Changer? 🚀🐍
🌟Is Learning Python Your Career Game-Changer? 🚀🐍abhishekdf3
 
Introduction-to-Python.pptx
Introduction-to-Python.pptxIntroduction-to-Python.pptx
Introduction-to-Python.pptxAyushDey1
 
An Ultimate Guide To Hire Python Developer
An Ultimate Guide To Hire Python DeveloperAn Ultimate Guide To Hire Python Developer
An Ultimate Guide To Hire Python DeveloperRishiVardhaniM
 
Agile Austin - Peer Code Review An Agile Process
Agile Austin -  Peer Code Review An Agile ProcessAgile Austin -  Peer Code Review An Agile Process
Agile Austin - Peer Code Review An Agile Processgsporar
 
The "Evils" of Optimization
The "Evils" of OptimizationThe "Evils" of Optimization
The "Evils" of OptimizationBlackRabbitCoder
 
python classes in thane
python classes in thanepython classes in thane
python classes in thanefaizrashid1995
 
How Much Does It Cost To Hire Python Developer?
How Much Does It Cost To Hire Python Developer?How Much Does It Cost To Hire Python Developer?
How Much Does It Cost To Hire Python Developer?SofiaCarter4
 
PHP Mega Meetup, Sep, 2020, Anti patterns in php
PHP Mega Meetup, Sep, 2020, Anti patterns in phpPHP Mega Meetup, Sep, 2020, Anti patterns in php
PHP Mega Meetup, Sep, 2020, Anti patterns in phpAhmed Abdou
 
10 tips to save you time and frustration while programming
10 tips to save you time and frustration while programming10 tips to save you time and frustration while programming
10 tips to save you time and frustration while programmingHugo Shi
 
Guide To Hiring Dedicated Python Developers In India.pdf
Guide To Hiring Dedicated Python Developers In India.pdfGuide To Hiring Dedicated Python Developers In India.pdf
Guide To Hiring Dedicated Python Developers In India.pdfAIS Technolabs Pvt Ltd
 
How To Become A Good C# Programmer
How To Become A Good C# ProgrammerHow To Become A Good C# Programmer
How To Become A Good C# ProgrammerLearnItFirst.com
 
applications and advantages of python
applications and advantages of pythonapplications and advantages of python
applications and advantages of pythonbhavesh lande
 
Effective cplusplus
Effective cplusplusEffective cplusplus
Effective cplusplusMark Veltzer
 
Things IT Undergrads Should Know (But Don't)
Things IT Undergrads Should Know (But Don't)Things IT Undergrads Should Know (But Don't)
Things IT Undergrads Should Know (But Don't)bryanbibat
 

Similar to PyParis2017 / Performant python, by Burkhard Kloss (20)

🌟Is Learning Python Your Career Game-Changer? 🚀🐍
🌟Is Learning Python Your  Career Game-Changer? 🚀🐍🌟Is Learning Python Your  Career Game-Changer? 🚀🐍
🌟Is Learning Python Your Career Game-Changer? 🚀🐍
 
Introduction-to-Python.pptx
Introduction-to-Python.pptxIntroduction-to-Python.pptx
Introduction-to-Python.pptx
 
Why learn python in 2017?
Why learn python in 2017?Why learn python in 2017?
Why learn python in 2017?
 
Best coding practices
Best coding practicesBest coding practices
Best coding practices
 
An Ultimate Guide To Hire Python Developer
An Ultimate Guide To Hire Python DeveloperAn Ultimate Guide To Hire Python Developer
An Ultimate Guide To Hire Python Developer
 
Agile Austin - Peer Code Review An Agile Process
Agile Austin -  Peer Code Review An Agile ProcessAgile Austin -  Peer Code Review An Agile Process
Agile Austin - Peer Code Review An Agile Process
 
The "Evils" of Optimization
The "Evils" of OptimizationThe "Evils" of Optimization
The "Evils" of Optimization
 
python classes in thane
python classes in thanepython classes in thane
python classes in thane
 
How Much Does It Cost To Hire Python Developer?
How Much Does It Cost To Hire Python Developer?How Much Does It Cost To Hire Python Developer?
How Much Does It Cost To Hire Python Developer?
 
PHP Mega Meetup, Sep, 2020, Anti patterns in php
PHP Mega Meetup, Sep, 2020, Anti patterns in phpPHP Mega Meetup, Sep, 2020, Anti patterns in php
PHP Mega Meetup, Sep, 2020, Anti patterns in php
 
python training.docx
python training.docxpython training.docx
python training.docx
 
10 tips to save you time and frustration while programming
10 tips to save you time and frustration while programming10 tips to save you time and frustration while programming
10 tips to save you time and frustration while programming
 
python-ppt.ppt
python-ppt.pptpython-ppt.ppt
python-ppt.ppt
 
python-ppt.ppt
python-ppt.pptpython-ppt.ppt
python-ppt.ppt
 
Guide To Hiring Dedicated Python Developers In India.pdf
Guide To Hiring Dedicated Python Developers In India.pdfGuide To Hiring Dedicated Python Developers In India.pdf
Guide To Hiring Dedicated Python Developers In India.pdf
 
How To Become A Good C# Programmer
How To Become A Good C# ProgrammerHow To Become A Good C# Programmer
How To Become A Good C# Programmer
 
applications and advantages of python
applications and advantages of pythonapplications and advantages of python
applications and advantages of python
 
py4inf-01-intro.ppt
py4inf-01-intro.pptpy4inf-01-intro.ppt
py4inf-01-intro.ppt
 
Effective cplusplus
Effective cplusplusEffective cplusplus
Effective cplusplus
 
Things IT Undergrads Should Know (But Don't)
Things IT Undergrads Should Know (But Don't)Things IT Undergrads Should Know (But Don't)
Things IT Undergrads Should Know (But Don't)
 

More from Pôle Systematic Paris-Region

OSIS19_IoT :Transparent remote connectivity to short-range IoT devices, by Na...
OSIS19_IoT :Transparent remote connectivity to short-range IoT devices, by Na...OSIS19_IoT :Transparent remote connectivity to short-range IoT devices, by Na...
OSIS19_IoT :Transparent remote connectivity to short-range IoT devices, by Na...Pôle Systematic Paris-Region
 
OSIS19_Cloud : SAFC: Scheduling and Allocation Framework for Containers in a ...
OSIS19_Cloud : SAFC: Scheduling and Allocation Framework for Containers in a ...OSIS19_Cloud : SAFC: Scheduling and Allocation Framework for Containers in a ...
OSIS19_Cloud : SAFC: Scheduling and Allocation Framework for Containers in a ...Pôle Systematic Paris-Region
 
OSIS19_Cloud : Qu’apporte l’observabilité à la gestion de configuration? par ...
OSIS19_Cloud : Qu’apporte l’observabilité à la gestion de configuration? par ...OSIS19_Cloud : Qu’apporte l’observabilité à la gestion de configuration? par ...
OSIS19_Cloud : Qu’apporte l’observabilité à la gestion de configuration? par ...Pôle Systematic Paris-Region
 
OSIS19_Cloud : Performance and power management in virtualized data centers, ...
OSIS19_Cloud : Performance and power management in virtualized data centers, ...OSIS19_Cloud : Performance and power management in virtualized data centers, ...
OSIS19_Cloud : Performance and power management in virtualized data centers, ...Pôle Systematic Paris-Region
 
OSIS19_Cloud : Des objets dans le cloud, et qui y restent -- L'expérience du ...
OSIS19_Cloud : Des objets dans le cloud, et qui y restent -- L'expérience du ...OSIS19_Cloud : Des objets dans le cloud, et qui y restent -- L'expérience du ...
OSIS19_Cloud : Des objets dans le cloud, et qui y restent -- L'expérience du ...Pôle Systematic Paris-Region
 
OSIS19_Cloud : Attribution automatique de ressources pour micro-services, Alt...
OSIS19_Cloud : Attribution automatique de ressources pour micro-services, Alt...OSIS19_Cloud : Attribution automatique de ressources pour micro-services, Alt...
OSIS19_Cloud : Attribution automatique de ressources pour micro-services, Alt...Pôle Systematic Paris-Region
 
OSIS19_IoT : State of the art in security for embedded systems and IoT, by Pi...
OSIS19_IoT : State of the art in security for embedded systems and IoT, by Pi...OSIS19_IoT : State of the art in security for embedded systems and IoT, by Pi...
OSIS19_IoT : State of the art in security for embedded systems and IoT, by Pi...Pôle Systematic Paris-Region
 
Osis19_IoT: Proof of Pointer Programs with Ownership in SPARK, by Yannick Moy
Osis19_IoT: Proof of Pointer Programs with Ownership in SPARK, by Yannick MoyOsis19_IoT: Proof of Pointer Programs with Ownership in SPARK, by Yannick Moy
Osis19_IoT: Proof of Pointer Programs with Ownership in SPARK, by Yannick MoyPôle Systematic Paris-Region
 
Osis18_Cloud : Virtualisation efficace d’architectures NUMA
Osis18_Cloud : Virtualisation efficace d’architectures NUMAOsis18_Cloud : Virtualisation efficace d’architectures NUMA
Osis18_Cloud : Virtualisation efficace d’architectures NUMAPôle Systematic Paris-Region
 
Osis18_Cloud : DeepTorrent Stockage distribué perenne basé sur Bittorrent
Osis18_Cloud : DeepTorrent Stockage distribué perenne basé sur BittorrentOsis18_Cloud : DeepTorrent Stockage distribué perenne basé sur Bittorrent
Osis18_Cloud : DeepTorrent Stockage distribué perenne basé sur BittorrentPôle Systematic Paris-Region
 
OSIS18_IoT: L'approche machine virtuelle pour les microcontrôleurs, le projet...
OSIS18_IoT: L'approche machine virtuelle pour les microcontrôleurs, le projet...OSIS18_IoT: L'approche machine virtuelle pour les microcontrôleurs, le projet...
OSIS18_IoT: L'approche machine virtuelle pour les microcontrôleurs, le projet...Pôle Systematic Paris-Region
 
OSIS18_IoT: La securite des objets connectes a bas cout avec l'os et riot
OSIS18_IoT: La securite des objets connectes a bas cout avec l'os et riotOSIS18_IoT: La securite des objets connectes a bas cout avec l'os et riot
OSIS18_IoT: La securite des objets connectes a bas cout avec l'os et riotPôle Systematic Paris-Region
 
OSIS18_IoT : Solution de mise au point pour les systemes embarques, par Julio...
OSIS18_IoT : Solution de mise au point pour les systemes embarques, par Julio...OSIS18_IoT : Solution de mise au point pour les systemes embarques, par Julio...
OSIS18_IoT : Solution de mise au point pour les systemes embarques, par Julio...Pôle Systematic Paris-Region
 
OSIS18_IoT : Securisation du reseau des objets connectes, par Nicolas LE SAUZ...
OSIS18_IoT : Securisation du reseau des objets connectes, par Nicolas LE SAUZ...OSIS18_IoT : Securisation du reseau des objets connectes, par Nicolas LE SAUZ...
OSIS18_IoT : Securisation du reseau des objets connectes, par Nicolas LE SAUZ...Pôle Systematic Paris-Region
 
OSIS18_IoT : Ada and SPARK - Defense in Depth for Safe Micro-controller Progr...
OSIS18_IoT : Ada and SPARK - Defense in Depth for Safe Micro-controller Progr...OSIS18_IoT : Ada and SPARK - Defense in Depth for Safe Micro-controller Progr...
OSIS18_IoT : Ada and SPARK - Defense in Depth for Safe Micro-controller Progr...Pôle Systematic Paris-Region
 
OSIS18_IoT : RTEMS pour l'IoT professionnel, par Pierre Ficheux (Smile ECS)
OSIS18_IoT : RTEMS pour l'IoT professionnel, par Pierre Ficheux (Smile ECS)OSIS18_IoT : RTEMS pour l'IoT professionnel, par Pierre Ficheux (Smile ECS)
OSIS18_IoT : RTEMS pour l'IoT professionnel, par Pierre Ficheux (Smile ECS)Pôle Systematic Paris-Region
 
PyParis 2017 / Un mooc python, by thierry parmentelat
PyParis 2017 / Un mooc python, by thierry parmentelatPyParis 2017 / Un mooc python, by thierry parmentelat
PyParis 2017 / Un mooc python, by thierry parmentelatPôle Systematic Paris-Region
 

More from Pôle Systematic Paris-Region (20)

OSIS19_IoT :Transparent remote connectivity to short-range IoT devices, by Na...
OSIS19_IoT :Transparent remote connectivity to short-range IoT devices, by Na...OSIS19_IoT :Transparent remote connectivity to short-range IoT devices, by Na...
OSIS19_IoT :Transparent remote connectivity to short-range IoT devices, by Na...
 
OSIS19_Cloud : SAFC: Scheduling and Allocation Framework for Containers in a ...
OSIS19_Cloud : SAFC: Scheduling and Allocation Framework for Containers in a ...OSIS19_Cloud : SAFC: Scheduling and Allocation Framework for Containers in a ...
OSIS19_Cloud : SAFC: Scheduling and Allocation Framework for Containers in a ...
 
OSIS19_Cloud : Qu’apporte l’observabilité à la gestion de configuration? par ...
OSIS19_Cloud : Qu’apporte l’observabilité à la gestion de configuration? par ...OSIS19_Cloud : Qu’apporte l’observabilité à la gestion de configuration? par ...
OSIS19_Cloud : Qu’apporte l’observabilité à la gestion de configuration? par ...
 
OSIS19_Cloud : Performance and power management in virtualized data centers, ...
OSIS19_Cloud : Performance and power management in virtualized data centers, ...OSIS19_Cloud : Performance and power management in virtualized data centers, ...
OSIS19_Cloud : Performance and power management in virtualized data centers, ...
 
OSIS19_Cloud : Des objets dans le cloud, et qui y restent -- L'expérience du ...
OSIS19_Cloud : Des objets dans le cloud, et qui y restent -- L'expérience du ...OSIS19_Cloud : Des objets dans le cloud, et qui y restent -- L'expérience du ...
OSIS19_Cloud : Des objets dans le cloud, et qui y restent -- L'expérience du ...
 
OSIS19_Cloud : Attribution automatique de ressources pour micro-services, Alt...
OSIS19_Cloud : Attribution automatique de ressources pour micro-services, Alt...OSIS19_Cloud : Attribution automatique de ressources pour micro-services, Alt...
OSIS19_Cloud : Attribution automatique de ressources pour micro-services, Alt...
 
OSIS19_IoT : State of the art in security for embedded systems and IoT, by Pi...
OSIS19_IoT : State of the art in security for embedded systems and IoT, by Pi...OSIS19_IoT : State of the art in security for embedded systems and IoT, by Pi...
OSIS19_IoT : State of the art in security for embedded systems and IoT, by Pi...
 
Osis19_IoT: Proof of Pointer Programs with Ownership in SPARK, by Yannick Moy
Osis19_IoT: Proof of Pointer Programs with Ownership in SPARK, by Yannick MoyOsis19_IoT: Proof of Pointer Programs with Ownership in SPARK, by Yannick Moy
Osis19_IoT: Proof of Pointer Programs with Ownership in SPARK, by Yannick Moy
 
Osis18_Cloud : Pas de commun sans communauté ?
Osis18_Cloud : Pas de commun sans communauté ?Osis18_Cloud : Pas de commun sans communauté ?
Osis18_Cloud : Pas de commun sans communauté ?
 
Osis18_Cloud : Projet Wolphin
Osis18_Cloud : Projet Wolphin Osis18_Cloud : Projet Wolphin
Osis18_Cloud : Projet Wolphin
 
Osis18_Cloud : Virtualisation efficace d’architectures NUMA
Osis18_Cloud : Virtualisation efficace d’architectures NUMAOsis18_Cloud : Virtualisation efficace d’architectures NUMA
Osis18_Cloud : Virtualisation efficace d’architectures NUMA
 
Osis18_Cloud : DeepTorrent Stockage distribué perenne basé sur Bittorrent
Osis18_Cloud : DeepTorrent Stockage distribué perenne basé sur BittorrentOsis18_Cloud : DeepTorrent Stockage distribué perenne basé sur Bittorrent
Osis18_Cloud : DeepTorrent Stockage distribué perenne basé sur Bittorrent
 
Osis18_Cloud : Software-heritage
Osis18_Cloud : Software-heritageOsis18_Cloud : Software-heritage
Osis18_Cloud : Software-heritage
 
OSIS18_IoT: L'approche machine virtuelle pour les microcontrôleurs, le projet...
OSIS18_IoT: L'approche machine virtuelle pour les microcontrôleurs, le projet...OSIS18_IoT: L'approche machine virtuelle pour les microcontrôleurs, le projet...
OSIS18_IoT: L'approche machine virtuelle pour les microcontrôleurs, le projet...
 
OSIS18_IoT: La securite des objets connectes a bas cout avec l'os et riot
OSIS18_IoT: La securite des objets connectes a bas cout avec l'os et riotOSIS18_IoT: La securite des objets connectes a bas cout avec l'os et riot
OSIS18_IoT: La securite des objets connectes a bas cout avec l'os et riot
 
OSIS18_IoT : Solution de mise au point pour les systemes embarques, par Julio...
OSIS18_IoT : Solution de mise au point pour les systemes embarques, par Julio...OSIS18_IoT : Solution de mise au point pour les systemes embarques, par Julio...
OSIS18_IoT : Solution de mise au point pour les systemes embarques, par Julio...
 
OSIS18_IoT : Securisation du reseau des objets connectes, par Nicolas LE SAUZ...
OSIS18_IoT : Securisation du reseau des objets connectes, par Nicolas LE SAUZ...OSIS18_IoT : Securisation du reseau des objets connectes, par Nicolas LE SAUZ...
OSIS18_IoT : Securisation du reseau des objets connectes, par Nicolas LE SAUZ...
 
OSIS18_IoT : Ada and SPARK - Defense in Depth for Safe Micro-controller Progr...
OSIS18_IoT : Ada and SPARK - Defense in Depth for Safe Micro-controller Progr...OSIS18_IoT : Ada and SPARK - Defense in Depth for Safe Micro-controller Progr...
OSIS18_IoT : Ada and SPARK - Defense in Depth for Safe Micro-controller Progr...
 
OSIS18_IoT : RTEMS pour l'IoT professionnel, par Pierre Ficheux (Smile ECS)
OSIS18_IoT : RTEMS pour l'IoT professionnel, par Pierre Ficheux (Smile ECS)OSIS18_IoT : RTEMS pour l'IoT professionnel, par Pierre Ficheux (Smile ECS)
OSIS18_IoT : RTEMS pour l'IoT professionnel, par Pierre Ficheux (Smile ECS)
 
PyParis 2017 / Un mooc python, by thierry parmentelat
PyParis 2017 / Un mooc python, by thierry parmentelatPyParis 2017 / Un mooc python, by thierry parmentelat
PyParis 2017 / Un mooc python, by thierry parmentelat
 

Recently uploaded

Bridging Between CAD & GIS: 6 Ways to Automate Your Data Integration
Bridging Between CAD & GIS:  6 Ways to Automate Your Data IntegrationBridging Between CAD & GIS:  6 Ways to Automate Your Data Integration
Bridging Between CAD & GIS: 6 Ways to Automate Your Data Integrationmarketing932765
 
Arti Languages Pre Seed Pitchdeck 2024.pdf
Arti Languages Pre Seed Pitchdeck 2024.pdfArti Languages Pre Seed Pitchdeck 2024.pdf
Arti Languages Pre Seed Pitchdeck 2024.pdfwill854175
 
Deliver Latency Free Customer Experience
Deliver Latency Free Customer ExperienceDeliver Latency Free Customer Experience
Deliver Latency Free Customer ExperienceOpsTree solutions
 
A PowerPoint Presentation on Vikram Lander pptx
A PowerPoint Presentation on Vikram Lander pptxA PowerPoint Presentation on Vikram Lander pptx
A PowerPoint Presentation on Vikram Lander pptxatharvdev2010
 
Long journey of Ruby standard library at RubyConf AU 2024
Long journey of Ruby standard library at RubyConf AU 2024Long journey of Ruby standard library at RubyConf AU 2024
Long journey of Ruby standard library at RubyConf AU 2024Hiroshi SHIBATA
 
Decarbonising Buildings: Making a net-zero built environment a reality
Decarbonising Buildings: Making a net-zero built environment a realityDecarbonising Buildings: Making a net-zero built environment a reality
Decarbonising Buildings: Making a net-zero built environment a realityIES VE
 
Emixa Mendix Meetup 11 April 2024 about Mendix Native development
Emixa Mendix Meetup 11 April 2024 about Mendix Native developmentEmixa Mendix Meetup 11 April 2024 about Mendix Native development
Emixa Mendix Meetup 11 April 2024 about Mendix Native developmentPim van der Noll
 
2024 April Patch Tuesday
2024 April Patch Tuesday2024 April Patch Tuesday
2024 April Patch TuesdayIvanti
 
Generative Artificial Intelligence: How generative AI works.pdf
Generative Artificial Intelligence: How generative AI works.pdfGenerative Artificial Intelligence: How generative AI works.pdf
Generative Artificial Intelligence: How generative AI works.pdfIngrid Airi González
 
Potential of AI (Generative AI) in Business: Learnings and Insights
Potential of AI (Generative AI) in Business: Learnings and InsightsPotential of AI (Generative AI) in Business: Learnings and Insights
Potential of AI (Generative AI) in Business: Learnings and InsightsRavi Sanghani
 
All These Sophisticated Attacks, Can We Really Detect Them - PDF
All These Sophisticated Attacks, Can We Really Detect Them - PDFAll These Sophisticated Attacks, Can We Really Detect Them - PDF
All These Sophisticated Attacks, Can We Really Detect Them - PDFMichael Gough
 
Transcript: New from BookNet Canada for 2024: BNC SalesData and LibraryData -...
Transcript: New from BookNet Canada for 2024: BNC SalesData and LibraryData -...Transcript: New from BookNet Canada for 2024: BNC SalesData and LibraryData -...
Transcript: New from BookNet Canada for 2024: BNC SalesData and LibraryData -...BookNet Canada
 
Transport in Open Pits______SM_MI10415MI
Transport in Open Pits______SM_MI10415MITransport in Open Pits______SM_MI10415MI
Transport in Open Pits______SM_MI10415MIRomil Mishra
 
Infrared simulation and processing on Nvidia platforms
Infrared simulation and processing on Nvidia platformsInfrared simulation and processing on Nvidia platforms
Infrared simulation and processing on Nvidia platformsYoss Cohen
 
React Native vs Ionic - The Best Mobile App Framework
React Native vs Ionic - The Best Mobile App FrameworkReact Native vs Ionic - The Best Mobile App Framework
React Native vs Ionic - The Best Mobile App FrameworkPixlogix Infotech
 
Connecting the Dots for Information Discovery.pdf
Connecting the Dots for Information Discovery.pdfConnecting the Dots for Information Discovery.pdf
Connecting the Dots for Information Discovery.pdfNeo4j
 
Testing tools and AI - ideas what to try with some tool examples
Testing tools and AI - ideas what to try with some tool examplesTesting tools and AI - ideas what to try with some tool examples
Testing tools and AI - ideas what to try with some tool examplesKari Kakkonen
 
A Glance At The Java Performance Toolbox
A Glance At The Java Performance ToolboxA Glance At The Java Performance Toolbox
A Glance At The Java Performance ToolboxAna-Maria Mihalceanu
 
QCon London: Mastering long-running processes in modern architectures
QCon London: Mastering long-running processes in modern architecturesQCon London: Mastering long-running processes in modern architectures
QCon London: Mastering long-running processes in modern architecturesBernd Ruecker
 
Laying the Data Foundations for Artificial Intelligence!
Laying the Data Foundations for Artificial Intelligence!Laying the Data Foundations for Artificial Intelligence!
Laying the Data Foundations for Artificial Intelligence!Memoori
 

Recently uploaded (20)

Bridging Between CAD & GIS: 6 Ways to Automate Your Data Integration
Bridging Between CAD & GIS:  6 Ways to Automate Your Data IntegrationBridging Between CAD & GIS:  6 Ways to Automate Your Data Integration
Bridging Between CAD & GIS: 6 Ways to Automate Your Data Integration
 
Arti Languages Pre Seed Pitchdeck 2024.pdf
Arti Languages Pre Seed Pitchdeck 2024.pdfArti Languages Pre Seed Pitchdeck 2024.pdf
Arti Languages Pre Seed Pitchdeck 2024.pdf
 
Deliver Latency Free Customer Experience
Deliver Latency Free Customer ExperienceDeliver Latency Free Customer Experience
Deliver Latency Free Customer Experience
 
A PowerPoint Presentation on Vikram Lander pptx
A PowerPoint Presentation on Vikram Lander pptxA PowerPoint Presentation on Vikram Lander pptx
A PowerPoint Presentation on Vikram Lander pptx
 
Long journey of Ruby standard library at RubyConf AU 2024
Long journey of Ruby standard library at RubyConf AU 2024Long journey of Ruby standard library at RubyConf AU 2024
Long journey of Ruby standard library at RubyConf AU 2024
 
Decarbonising Buildings: Making a net-zero built environment a reality
Decarbonising Buildings: Making a net-zero built environment a realityDecarbonising Buildings: Making a net-zero built environment a reality
Decarbonising Buildings: Making a net-zero built environment a reality
 
Emixa Mendix Meetup 11 April 2024 about Mendix Native development
Emixa Mendix Meetup 11 April 2024 about Mendix Native developmentEmixa Mendix Meetup 11 April 2024 about Mendix Native development
Emixa Mendix Meetup 11 April 2024 about Mendix Native development
 
2024 April Patch Tuesday
2024 April Patch Tuesday2024 April Patch Tuesday
2024 April Patch Tuesday
 
Generative Artificial Intelligence: How generative AI works.pdf
Generative Artificial Intelligence: How generative AI works.pdfGenerative Artificial Intelligence: How generative AI works.pdf
Generative Artificial Intelligence: How generative AI works.pdf
 
Potential of AI (Generative AI) in Business: Learnings and Insights
Potential of AI (Generative AI) in Business: Learnings and InsightsPotential of AI (Generative AI) in Business: Learnings and Insights
Potential of AI (Generative AI) in Business: Learnings and Insights
 
All These Sophisticated Attacks, Can We Really Detect Them - PDF
All These Sophisticated Attacks, Can We Really Detect Them - PDFAll These Sophisticated Attacks, Can We Really Detect Them - PDF
All These Sophisticated Attacks, Can We Really Detect Them - PDF
 
Transcript: New from BookNet Canada for 2024: BNC SalesData and LibraryData -...
Transcript: New from BookNet Canada for 2024: BNC SalesData and LibraryData -...Transcript: New from BookNet Canada for 2024: BNC SalesData and LibraryData -...
Transcript: New from BookNet Canada for 2024: BNC SalesData and LibraryData -...
 
Transport in Open Pits______SM_MI10415MI
Transport in Open Pits______SM_MI10415MITransport in Open Pits______SM_MI10415MI
Transport in Open Pits______SM_MI10415MI
 
Infrared simulation and processing on Nvidia platforms
Infrared simulation and processing on Nvidia platformsInfrared simulation and processing on Nvidia platforms
Infrared simulation and processing on Nvidia platforms
 
React Native vs Ionic - The Best Mobile App Framework
React Native vs Ionic - The Best Mobile App FrameworkReact Native vs Ionic - The Best Mobile App Framework
React Native vs Ionic - The Best Mobile App Framework
 
Connecting the Dots for Information Discovery.pdf
Connecting the Dots for Information Discovery.pdfConnecting the Dots for Information Discovery.pdf
Connecting the Dots for Information Discovery.pdf
 
Testing tools and AI - ideas what to try with some tool examples
Testing tools and AI - ideas what to try with some tool examplesTesting tools and AI - ideas what to try with some tool examples
Testing tools and AI - ideas what to try with some tool examples
 
A Glance At The Java Performance Toolbox
A Glance At The Java Performance ToolboxA Glance At The Java Performance Toolbox
A Glance At The Java Performance Toolbox
 
QCon London: Mastering long-running processes in modern architectures
QCon London: Mastering long-running processes in modern architecturesQCon London: Mastering long-running processes in modern architectures
QCon London: Mastering long-running processes in modern architectures
 
Laying the Data Foundations for Artificial Intelligence!
Laying the Data Foundations for Artificial Intelligence!Laying the Data Foundations for Artificial Intelligence!
Laying the Data Foundations for Artificial Intelligence!
 

PyParis2017 / Performant python, by Burkhard Kloss

  • 1. Performant Python how to write good, fast, python code @georgebernhard bk@xk7.com
  • 2. how to write good, fast, python code
  • 3. how to write good, fast, python code how to write good, fast, python code
  • 4. how to write good, fast, python code how to write good, fast, python code how to write good, fast, python code
  • 5. import this Beautiful is better than ugly. Explicit is better than implicit. Simple is better than complex. Complex is better than complicated. Flat is better than nested. Sparse is better than dense. Readability counts.
  • 6. how to write good, fast, python code how to write good, fast, python code how to write good, fast, python code
  • 9. how to write good, fast, python code how to write good, fast, python code how to write good, fast, python code
  • 10. how to write good, fast, python code
  • 11. how to write good, fast, python code
  • 12. how to write good, fast, python code
  • 13.
  • 14. Programmers waste enormous amounts of time thinking about, or worrying about, the speed of noncritical parts of their programs, and these attempts at efficiency actually have a strong negative impact when debugging and maintenance are considered.
  • 15. Programmers waste enormous amounts of time thinking about, or worrying about, the speed of noncritical parts of their programs, and these attempts at efficiency actually have a strong negative impact when debugging and maintenance are considered. We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil.
  • 16. Programmers waste enormous amounts of time thinking about, or worrying about, the speed of noncritical parts of their programs, and these attempts at efficiency actually have a strong negative impact when debugging and maintenance are considered. We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. Yet we should not pass up our opportunities in that critical 3%. Donald Knuth
  • 17. how to write good, fast, python code
  • 19.
  • 20. Batteries included! python -m cProfile anagram0.py > profile_anagram0.txt
  • 21.
  • 22.
  • 23.
  • 24.
  • 25.
  • 26.
  • 27.
  • 28.
  • 29. how to write good, fast, python code
  • 30.
  • 31.
  • 32. how to write good, fast, python code
  • 33.
  • 34.
  • 35. Programmers waste enormous amounts of time thinking about, or worrying about, the speed of noncritical parts of their programs, and these attempts at efficiency actually have a strong negative impact when debugging and maintenance are considered. We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. Yet we should not pass up our opportunities in that critical 3%. Donald Knuth
  • 36.
  • 37.
  • 38.
  • 39.
  • 40.
  • 41.
  • 42.
  • 43. how to write good, fast, python code
  • 44.
  • 45.
  • 46.
  • 47.
  • 48.
  • 49.
  • 50.
  • 51.
  • 52. Programmers waste enormous amounts of time thinking about, or worrying about, the speed of noncritical parts of their programs, and these attempts at efficiency actually have a strong negative impact when debugging and maintenance are considered. We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. Yet we should not pass up our opportunities in that critical 3%. Donald Knuth
  • 53. “Premature optimization is the root of all evil, so to start this project I'd better come up with a system that can determine whether a possible optimization is premature or not."
  • 54.
  • 55. Fin.
  • 56.
  • 57.
  • 58.
  • 59.
  • 60.
  • 61.
  • 62.
  • 63.
  • 64.
  • 65.
  • 66.
  • 67.
  • 70.
  • 71.
  • 72.
  • 73. If you want to see my slides on micro optimisations, you can see them below.
  • 75.
  • 76.
  • 77. anagram0.py + works + didn’t take long to write
  • 78.
  • 79.
  • 82. 52 x faster - Datastructures FTW!
  • 83.
  • 84. What are you doing?
  • 85.
  • 86.
  • 87.
  • 88.
  • 89.
  • 90.
  • 91.
  • 92. And now for something completely different….
  • 93. Variations on an almost trivial sum….
  • 94.
  • 95.
  • 96.
  • 97.
  • 98.
  • 99. Tools