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hypha.apply.funds.templatetags.archive_tags

register module-attribute 

register = Library()

join_with_commas 

join_with_commas(obj_list)

Takes a list of objects and returns their string representations, separated by commas and with 'and' between the penultimate and final items For example, for a list of fruit objects: [, , ] -> 'apples, oranges and pears'

Inspired by: https://stackoverflow.com/a/1242107

Source code in hypha/apply/funds/templatetags/archive_tags.py 
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@register.filter
def join_with_commas(obj_list: list):
    """
    Takes a list of objects and returns their string representations,
    separated by commas and with 'and' between the penultimate and final items
    For example, for a list of fruit objects:
    [<Fruit: apples>, <Fruit: oranges>, <Fruit: pears>] -> 'apples, oranges and pears'

    Inspired by: https://stackoverflow.com/a/1242107
    """
    if not obj_list:
        return ""
    list_len = len(obj_list)
    if list_len == 1:
        return f"{obj_list[0]}"

    return f"{', '.join(str(obj) for obj in obj_list[:list_len-1])} and {obj_list[list_len-1]}"