Using google cloud function to spawn a python script

Question

I need to execute some python machine learning code and was hoping to execute it from a node process within a Google Cloud Function.

I want to use node because I have some firebase admin tasks I want to run afterwards. I also have a deployment workflow with node that I'm content with.

Is this possible? If so, can you point me to an example?

martin.code · Accepted Answer · 2017-09-04 07:35:21Z

3

Yes, this would be possible, you probably need to use http://www.pyinstaller.org/ to package the python code. Have a look at my python library for actually writing your functions in python to do it, or just copy paste whatever parts you need to do it yourself: https://github.com/MartinSahlen/cloud-functions-python/

answered Sep 4, 2017 at 7:35

martin.code

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7 Comments

Drux Over a year ago

Can you elaborate a bit on how this works. Are you compiling Python into JS or are you co-locating the Python stuff in a container where the cloud function's JS can call it? I'm new to cloud functions and cannot yet imagine how it works, given the technology's current out-of-the-box limitation to JS.

martin.code Over a year ago

So what is happening is that pyinstaller is used to package the python code into a self-executable unit. How that works is probably by embedding the necessary parts of the python runtime but exactly how that works is not known to me - but pyinstaller is open source and well documented so information should be there. After packaging the python code, there is a node script that executes the function sending and recieving data from the python executable using stdin / stdout. Again, please have a look at the source code in githhub - it's all there.

Drux Over a year ago

Thx for you response, I get the picture now.

Aakash Choubey Over a year ago

I have packaged my python code into the self-executable unit..which creates a folder containing an executable and a lot of other stuff. I tried and that executable works sufficiently on my local machine. But being new to Firebase, I have no idea how to upload this and run it.I want to use it via spawn. Need help..how is that done?

martin.code Over a year ago

@AakashChoubey this is what I answered above. You should check out the source code which does exactly this. keep in mind, this is not set up to work with firebase functions, only google cloud functions.

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