def __init__(self, number, key, var_name):
        # Retrieve the page number.
        self.page_number_variable = None
        if number is None:
            self.page_number = 1
        elif number.isdigit():
            self.page_number = int(number)
        else:
            self.page_number_variable = template.Variable(number)

        # Get the queystring key.
        self.querystring_key_variable = None
        if key is None:
            self.querystring_key = settings.PAGE_LABEL
        elif key[0] in ('"', "'") and key[-1] == key[0]:
            self.querystring_key = key[1:-1]
        else:
            self.querystring_key_variable = template.Variable(key)

        # Get the template variable name.
        self.var_name = var_name
dataset/ETHPy150Open frankban/django-endless-pagination/endless_pagination/templatetags/endless.py/ShowCurrentNumberNode.__init__/original