⚡ 5 Horrifying Python Techniques to get you fired - Andrew L

Python is a great language, with a few... cursed exploits. While a lot of implementation details make it easier to work with, they also lead to quirks - quirks which can be exploited for fun (and profit?). Whether it's variables, match statements, type hinting, imports, or even just trying to fit everything on one line, this talk has more than a few slithering tricks up its sleeve.

Talk by Andrew L.

Some explanations:

00:00 - Introduction
02:45 - Variable Binding
04:35 - Variable Unbinding
06:08 - Annotations
08:26 - One Line
12:07 - Importing

[arduous]

This is so cursed. I've never felt in this way since the day someone told me that in C, "a[10]" is identical to "10[a]".

[probablykeegan]

I'm sure the Python maintainers would love to see you using their language like this

[defenestrated]

"one plus one is two, and now there's a module called two" 😰 I've seen a lot of cursed python, but that might take the cake

[Bobbias]

Fuckit is truly one of the most cursed libraries out there. Kudos to the creator for their creativity.

[alexd]

What got me fired is writing pythonic code.
Because the 'expert' / team-lead learned Java once and hated everything that didn't look like Java.

[GSBarlev]

How the entire room wasn't just erupting in laughter the whole talk long! I was convinced you must have given this presentation over Zoom or something up until the end.

[BrianStDenis-pjtq]

Only a person who loves Python would put that much work into a video. Nice job.

[martixy]

Every language has shenanigans because EVERY abstraction is leaky.
Python just happes to have particularly fun ones because it tries to do so much.

[thunder____]

14:55 "One is just a module, there's nothing funny going on here" is delivered just perfectly while I'm still dying of laughter over the "fuckit" module

[xsaiko]

So that's what "modular arithmetic" means!

[Exius-Zero]

So in other words, you have to be an expert at python in order to get fired.

[stapler]

I feel like Bertrand Russell would like a word about that list containing itself.

[Xeno]

Woah this talk is going a billion miles a minute. I need to pause it all the time to understand the point that's being made 😅

[RexVelde]

For any new code golfers out there, use __import__("module") instead of normal import because it saves a byte.

Unless golfing, shy away from it.

[iniom]

Import replacement is super useful in large codebases because it enables aliasing two import paths to the same package. That lets you move/rename packages without doing it as a single monolithic change.

[thisoldproperty]

Just seeing the 'fuckit' library made this worth the watch.
For anyone wondering there is a context manager that can do the same thing, but it's not as funny.

[Hulan]

While not as nuanced as pretty much any point made in this talk, I'll join in and share my personal favorite "python wat?" entry. This one has the added bonus of being something a programming polyglot might actually run into and have an existential crisis over.

Due to the way it handles scope, the _lambda_ expression does not support true closures. But python will try its absolute best to _pretend_ that it does. That means that depending on usage, variables shared across closures will influence each other seemly through pure magic if you're expecting an actual closure.

[(lambda x: x + y) for y in range(10)] # has some unfortunate behavior

And you can make the above a _lot_ more cursed.

[bryanbanda]

This was hilarious & informative 🤣 Python has some cursed shenanigan gems indeed

[RyanMorey]

This was a great talk, very well done

[hdpu]

I really didn't expect the spanish inquisition