reloading

This is a great debugging tool for deep learning. Often your code might have been running for 20 hrs on 16 GPUs and you just don't want to restart from scratch again.

Really nice tool! I often develop in a similar pattern (though not quite as functional) using IPython and it's %autoreload magic. This looks a lot cleaner.

Django's development mode aka "runserver" behaves a lot like this (as does a ton of different Node/JavaScript systems, many of which are much more precise on what sub-components…

This is how Lisp developers have worked for decades. It's been used for games before, too, e.g., https://en.wikipedia.org/wiki/Game_Oriented_Assembly_Lisp

Ah, something Common Lisp has had for over 30 years.

i wrote something similar a while ago, and it gave rise to a pretty head-scratching bug... my code was doing something like ``` if type(x) is Foo: ``` and mysteriously failed for…

That's a pain to debug. A similar thing happened to me with reload from Python's importlib. In the case of the reloading loop I think this will only happen when redefining the…

I did a talk on this recently at EuroPython. Hot reloaders are really, really really hard to implement in Python in the general case (I.e not an IPython shell). You run into…

https://youtu.be/IghyoR6ld60 I didn't go into as much detail as I would have liked about hot reloaders, but the tl;dr is that if you have a _single_ reference to something, then…

I did a talk on this recently at EuroPython. Hot reloaders are really, really really hard to implement in Python in the general case (I.e not an IPython shell). You run into…

Not sure I totally agree that this achieves those goals, but I can't argue they would be ideal goals. >interactive AFAIK, as you type python code it will execute with the changes…

It'd be cool to be able to use this as a method decorator too!

This is awesome. A nice improvement would be to have the loop continue with the old code when there are errors (rather than pausing iteration).

Anyone else getting this error? I tried on Debian 9 and MacOS 10.14.6 after installing via pip. ``` import reloading Traceback (most recent call last): File "<input>", line 1, in…

It does work in Python 2 with the following patch: ``` diff --git a/reloading/reloading.py b/reloading/reloading.py index 1d28e2f..1a5f981 100644 --- a/reloading/reloading.py +++…

i wrote something similar a while ago, and it gave rise to a pretty head-scratching bug... my code was doing something like ``` if type(x) is Foo: ``` and mysteriously failed for…

yeah, importlib.reload caused mine as well! i'm wondering if there's a way to avoid that... maybe a @reloadable class decorator that saves a reference to each object you…

Really nice tool! I often develop in a similar pattern (though not quite as functional) using IPython and it's %autoreload magic. This looks a lot cleaner.

https://youtu.be/IghyoR6ld60 I didn't go into as much detail as I would have liked about hot reloaders, but the tl;dr is that if you have a _single_ reference to something, then…

Ah, something Common Lisp has had for over 30 years.

This is how Lisp developers have worked for decades. It's been used for games before, too, e.g., https://en.wikipedia.org/wiki/Game_Oriented_Assembly_Lisp

FYI there's also reload(module) which is a built-in function. One great use-case I've come across is in developing a network proxy for game packet interception, see:…

That's a pain to debug. A similar thing happened to me with reload from Python's importlib. In the case of the reloading loop I think this will only happen when redefining the…

Django's development mode aka "runserver" behaves a lot like this (as does a ton of different Node/JavaScript systems, many of which are much more precise on what sub-components…