Slide 1
Slide 1 text
Python 2.7 & Python 3
A Sacred Love Story
Kenneth Reitz
Slide 2
Slide 2 text
Welcome.
Slide 3
Slide 3 text
@kennethreitz
Slide 4
Slide 4 text
No content
Slide 5
Slide 5 text
Python Software
Foundation
Slide 6
Slide 6 text
github.com/kennethreitz
• ~18 serious projects.
• 100+ experiments.
• OSX-GCC-Installer: 56TB of downloads.
• Requests: 14.3+ million downloads.
Slide 7
Slide 7 text
Other Interests...
• Street Photography & Photojournalism
• Synthesizers & Music Production
• World Travel (~140,000 miles last year)
• Public Speaker (29 events last year)
Slide 8
Slide 8 text
Language
Slide 9
Slide 9 text
Early Human:
Alone with self & ideas.
Self
Slide 10
Slide 10 text
Spoken Language:
Express ideas to others.
Self
Other
Slide 11
Slide 11 text
Written Language:
Persists ideas over time.
Self
Other
Time
Slide 12
Slide 12 text
Human hardware hasn't changed —
The software has been upgraded.
Slide 13
Slide 13 text
Communication: One-to-One.
At first, language was mostly used for a single
person to communicate to another single person,
or a small group of people.
!
This is no longer the case.
Slide 14
Slide 14 text
No content
Slide 15
Slide 15 text
Communication: One-to-Many.
• After the printing press, a single privileged
entity could communicate to the masses.
• Newspapers, Books, Television, Radio, etc.
• This formed the narrative of "the public".
• Very polarizing — unifying and destructive.
Slide 16
Slide 16 text
Communication: Many-to-Many.
?
Slide 17
Slide 17 text
The Internet!
Slide 18
Slide 18 text
Communication: Many-to-Many.
• If you have access to the internet, you have
access to a universe of information and ideas.
• Anyone can publish anything to any number
of people, large or small. A level playing field.
• The implications of this are huge.
Slide 19
Slide 19 text
Self
Other
Time
Slide 20
Slide 20 text
Self
Other
Time
Space
Slide 21
Slide 21 text
Self
Other
Time
Space
Slide 22
Slide 22 text
Self
Other
Time
Space
Culture
Self-Expression
Self-Identity
H
istory
Slide 23
Slide 23 text
Self
Other
Time
Space
Culture
Self-Expression
Self-Identity
H
istory
Social Media
Research &
Information
Creation &
Publishing
Consumption &
Discovery
Slide 24
Slide 24 text
For the first time in
Human History!
We have the technology.
Slide 25
Slide 25 text
Python!
Slide 26
Slide 26 text
The Zen of Python
>>> import this
Slide 27
Slide 27 text
Beautiful is better
than ugly.
Slide 28
Slide 28 text
Explicit is better
than implicit.
Slide 29
Slide 29 text
Simple is better
than complex.
Slide 30
Slide 30 text
Complex is better
than complicated.
Slide 31
Slide 31 text
No content
Slide 32
Slide 32 text
I am Afraid.
Slide 33
Slide 33 text
I am Terrified.
Slide 34
Slide 34 text
Python
Slide 35
Slide 35 text
Python
Python
Slide 36
Slide 36 text
Python 3
Python 2
Slide 37
Slide 37 text
This boundary
divides & separates.
Slide 38
Slide 38 text
Python 3
Python 2
Self
Other
Slide 39
Slide 39 text
Afraid of Python 3?
Slide 40
Slide 40 text
You are not alone.
Slide 41
Slide 41 text
Experiential Oddities
>>> b'hello'[0]!
104!
!
>>> str(b'hi')!
"b'hi'"!
!
>>> bytes(8)!
b'\x00\x00\x00\x00\x00\x00\x00\x00'!
!
Slide 42
Slide 42 text
Unicode, Codecs, & Friends.
Slide 43
Slide 43 text
The Standard Library is broken.
Slide 44
Slide 44 text
Why?
Slide 45
Slide 45 text
There are no users.
Slide 46
Slide 46 text
"Of course there are users!
Everyone's trying Python 3...
except me!"
Slide 47
Slide 47 text
Let's look at the data.
Slide 48
Slide 48 text
DATA
Slide 49
Slide 49 text
The Cheesehop (PyPi)
• The canonically accepted source of all Python
package downloads and installation.
• The perfect way to measure language
runtime usage distribution.
• Sample range: 2014-01-02—2014-01-15.
Slide 50
Slide 50 text
Python 3
Python 2
3,736,829
81,501,026
2014-01-02 — 2014-01-15.
Slide 51
Slide 51 text
Python 3
Python 2
Self
Other
Current
New Users
Slide 52
Slide 52 text
Python Community
Core Developers
The Great Separation
Slide 53
Slide 53 text
The Current Duality
• Library maintainers have to double their
efforts to support both Python 2 & Python 3.
• Core Maintainers will continue working in a
vacuum, furthering separateness & division.
• New users will keep coming to Python 3 &
Python 2 will slowly attrit into nothing.
Slide 54
Slide 54 text
You are the problem.
Slide 55
Slide 55 text
You are the solution.
Slide 56
Slide 56 text
The Two Become One
Slide 57
Slide 57 text
The Two Become One
Slide 58
Slide 58 text
Look within yourself — before
the Python we know & love is
only a memory.
Slide 59
Slide 59 text
Stop waiting for the right blog
post or conference talk to
influence your opinion.
Slide 60
Slide 60 text
Have a direct experience.
Slide 61
Slide 61 text
Share it with us.
Slide 62
Slide 62 text
Look within.
Slide 63
Slide 63 text
No content
Slide 64
Slide 64 text
No content
Slide 65
Slide 65 text
No content