cast str to float safely | v0.3

[Unique-Divine]

• test: all green w/ new binary
• increment pyproject version for release
• update changelog
• feat: safely cast string fields in vpool all_pools

[matthiasmatt]

Don't we need numpy np.nan there?

I was doing this just now:

        # The golang application is returning index price and twap price as string since v0.14.0
        # This is because those fields can be null, which leads to empty strings returned which cannot be easily
        # deserialized automatically by the deserialized function inside the self.query call above.
        # For this reason we do this manual update there

        for _, price in enumerate(resp["prices"]):

            for field in ["twap_mark", "index_price"]:
                value = price[field]
                if isinstance(value, str) and value == "":
                    value = np.nan
                else:
                    value = float(value)

                price[field] = value

[matthiasmatt]

actually it's better to not have all the numpy dependency and reqs for the docker build we make

[Unique-Divine]

I had the same idea. I wasn't sure if we should add the numpy dependency

[Unique-Divine]

And both "" and None are invalid inputs to the float() function, so it handles both cases