a 'hello world' python C extension (intermediate - advanced) anthony explains #134

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today I create a sample hello world python C extension and walk through a bit of api and reference counting.

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I won't ask for subscriptions / likes / comments in videos but it really helps the channel. If you have any suggestions or things you'd like to see please comment below!

anthonywritescode

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thank you, that was exactly what i was looking for!

LoucuraMagic

Awesome vid, as usual! There's not much out there on the C-API that is this straightforward.
I recently wrote my first C-extension with a lot of frustration (I hated C before starting), but I now have an appreciation for it. I got a ~20% speed-up vs the same function implemented in vanilla Python. I'm curious to see how it stacks up against Cython, but I have no idea how to write .pyx

chriskorfmann

Like watching your vids. Even thou I am still to grasping the core concepts of python language itself.

dannymurphy

What this enviroment/WM? I search for usable tiling solution...

imreolah

This is, most of the time, more of a hobby/curiosity than an actual need (which is still great so many thanks).
However, it's usually best to check out libraries like numpy/scipy/numba/etc before writing your own C extension.

anibaldk

Thanks for the video! Why we dont have to call Py_DECREF on name variable?

TheNotStated

im starting new job as software engineer and they are going to use capi for python 2.7. I find this video so useful. Thanks man! PS. What you like to continue with this topic? ;)

POPO

This is a nice video, it was a good watch and to the point.

fernandodiazurbano

Does sys.getrefcount(ANY STRING) by default return 3?
Because it didn't change after the code rewrite.

nicezombies

Great video. A Zig version would also be nice.

DataPastor

same for RUST and GO as mentioned please ;)

marcello

Is there any advantage of using C++ over C for this and if so can you make a guide?

victordvickie

Why we use .c extension to save program

jd

what does 'pip install .' do?

erjiaxiao

Too small font, can't see the code. A pity :-/

jccheloven

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