Issue while converting to float

[ghost]

Hey guys,

I came over from the home-assistant community to report an issue we found.

We are trying to convert a comma seperated decimal (as string) to float.

additional info: in germany we always use the comma as seperator

Expected Behavior

the result should be 43.0

Actual Behavior

the result is 0.0

Template Code

{% set x = "43,0" %}
{{x | float}}

Full Traceback

Here is the full discussion instead:
DISCUSSION

## Your Environment
* Python version: 2.7.13

[davidism]

In Python, float("43,0") raises an error. In Jinja, |float handles that error by using the default, which defaults to 0.0. If you want different behavior, you'll need to register a different float filter.

float(value, default=0.0)

Convert the value into a floating point number. If the conversion doesn’t work it will return 0.0. You can override this default using the first parameter.