On MacOS loaded beta2. Testing some of my plugins and find that the GrampsLocale object is missing the format attribute. This function formats a number in the current locale. See gen/utils/grampslocale.py . This is now replaced by the python locale object, format attribute.
This might need to be in the change list.
Specific details: 5.1 gramplet code used the following and it worked:
from gramps.gen.const import GRAMPS_LOCALE as glocale
tooltip_text += glocale.format(‘%d’,self.segments, grouping = True)
But 5.2 generates the error:
AttributeError: ‘GrampsLocale’ object has no attribute ‘format’