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

Preparing for the great snakes migration by Heather Williams

7b0645f018c0bddc8ce3900ccc3ba70c?s=47 Pycon ZA
October 09, 2020
Programming
0
5

Preparing for the great snakes migration by Heather Williams

A Lightning Talk at PyCon ZA 2020

7b0645f018c0bddc8ce3900ccc3ba70c?s=128

Pycon ZA

October 09, 2020
Tweet

More Decks by Pycon ZA

See All by Pycon ZA
7b0645f018c0bddc8ce3900ccc3ba70c?s=48 pyconza
0
22
7b0645f018c0bddc8ce3900ccc3ba70c?s=48 pyconza
0
8
7b0645f018c0bddc8ce3900ccc3ba70c?s=48 pyconza
0
9
7b0645f018c0bddc8ce3900ccc3ba70c?s=48 pyconza
0
9
7b0645f018c0bddc8ce3900ccc3ba70c?s=48 pyconza
0
36
7b0645f018c0bddc8ce3900ccc3ba70c?s=48 pyconza
0
17
7b0645f018c0bddc8ce3900ccc3ba70c?s=48 pyconza
0
10
7b0645f018c0bddc8ce3900ccc3ba70c?s=48 pyconza
0
12
7b0645f018c0bddc8ce3900ccc3ba70c?s=48 pyconza
0
8

Other Decks in Programming

See All in Programming
99d4c0ed3c8027ea1c37b53d6441d042?s=48 sullis
0
120
3a3c6a0c96f487521ce83b719bc25814?s=48 asumikan
0
280
079f41894122acf92719f5558dcaf944?s=48 dictoss
0
160
D76231a2114896dfcc7b79ac69558b79?s=48 yosuke_furukawa
PRO
13
3.6k
347a1b64f3a6e38981bc99b53919e2b1?s=48 azdaroth
0
160
3cfad86677c5966ecfe9b81955fa3489?s=48 inoue2002
0
260
51105482dc2e3d01b3ba64c9751d75c6?s=48 showwin
0
120
15bd11f2c2c5e3dd854153d03a102b0d?s=48 standfm
0
220
99223605731d1a4d0a6db40bb7c21126?s=48 junmikai
0
290
4047c64e3a1e2f81addd4ba675ddc451?s=48 zsmb
2
110
E473e5af1263c050599921981db46068?s=48 akatsukinewgrad
0
150
51ae114c2809ff0d2945c751efa7cffc?s=48 canon1ky
3
340

Featured

See All Featured
462dad0dd24c568a32dcdb0ae895ae1b?s=48 rasmusluckow
318
18k
61857dafbd287b3027c4dcea9008ad3c?s=48 carmenhchung
26
1.3k
433acaea1012b25d97ae66da9b998dad?s=48 malarkey
393
60k
7c8469ee8c9e594c65c59b919626c08d?s=48 scottboms
251
11k
56c4053438af8e8b90d6f53cbb7573be?s=48 jakevdp
774
200k
9952dfcd5d338f8a8e7175c8a8f65fb5?s=48 wjessup
338
16k
8ec1383b240b5ba15ffb9743fceb3c0e?s=48 philnash
8
490
44b54d2ffcb7857004071cc6795dde11?s=48 cassininazir
347
20k
95d9f37115fbb0d13135d0f77132f856?s=48 morganepeng
17
1.1k
20bfe76b3d6105641f879fe45cfc9272?s=48 bkeepers
321
53k
E14f55d3f939977cecbf51b64ff6f861?s=48 keithpitt
401
20k
9375a9529679f1b42b567a640d775e7d?s=48 schacon
145
6.6k

Transcript

  1. Great snakes migration Upgrading from python 2 to python 3

    By Heather Williams

  2. The Problem • A large codebase • Around 3 000

    python files used to generate questions on a website • Monolith disguised as microservices

  3. Solution: Walled gardens • Make the monolith a true monolith

    • Identify the real microservices • Docker all the things • Walled garden around the python files for questions

  4. Solution: automate it Python 2to3 is a great tool https://docs.python.org/3.0/library/2to3.html

  5. Solution: requirements files • Remove unnecessary dependencies • Upgrade out

    of date dependencies • Note what needs python 3 to upgrade

  6. Great snakes migration Take the plunge and do it!