Question: I have two big numpy arrays, I need to divide them.

Since I am working on Python 32-bits, and the arrays are too big, to avoid `FloatingPointError`, I am doing, for example:

```
x = numpy.array([...],dtype=object)
y = numpy.array([...].dtype=object)

```

The problem is that, inside the array `y`, some elements can be 0.0

So, my question, how to handle the calculation `x/y` and avoid `ZeroDivisionError`.

For exmaple, I would like to force `nan` if the element in `y` is 0. So that, for that particular element inside the array, the calculation `x/y=nan`

Answer: 
> 
> Add to composer.json
> 
> 
> 

```
"scripts": {
    "post-install-cmd": [
      "chgrp -R www-data storage bootstrap/cache",
      "chmod -R ug+rwx storage bootstrap/cache"
    ]
}

```

After `composer install`
If you have some code changes in some files and then some permission changes, it might be easier to set up the right permissions and commit again than try to pick the files that have permission changes.
You will only be left with the code changes.