consider: def cost_of_paint_required( triangle: Triangle, area_calculator: Callable[[Triangle], float] ) -> float: return area_calculator(triangle) * DOLLAR_PER_SQ_FT # This straightforwardly works def

def cost_of_paint_required( triangle: Triangle, area_calculator: Callable[[Triangle], float] ) -> float: return area_calculator(triangle) * DOLLAR_PER_SQ_FT # This straightforwardly works

def cost_of_paint_required( triangle: Triangle, area_calculator: Callable[[Triangle], float] ) -> float: return area_calculator(triangle) * DOLLAR_PER_SQ_FT # This straightforwardly works

consider: def cost_of_paint_required( triangle: Triangle, area_calculator: Callable[[Triangle], float] ) -> float: return area_calculator(triangle) * DOLLAR_PER_SQ_FT # This straightforwardly works def

way” until now, to focus on core concepts. You should know basic math before you start using a calculator. Amend URLconf First, open the polls/urls.py URLconf and change it like so: polls/urls.py 48

way” until now, to focus on core concepts. You should know basic math before you start using a calculator. Amend URLconf First, open the polls/urls.py URLconf and change it like so: polls/urls.py from

way” until now, to focus on core concepts. You should know basic math before you start using a calculator. 40 Chapter 2. Getting started Django Documentation, Release 2.1.16.dev20191202082911 Amend

way” until now, to focus on core concepts. You should know basic math before you start using a calculator. Amend URLconf First, open the polls/urls.py URLconf and change it like so: polls/urls.py from

way” until now, to focus on core concepts. You should know basic math before you start using a calculator. Amend URLconf First, open the polls/urls.py URLconf and change it like so: polls/urls.py from

way” until now, to focus on core concepts. You should know basic math before you start using a calculator. Amend URLconf First, open the polls/urls.py URLconf and change it like so: polls/urls.py from