Esqueleto de aplicação com suport a plugins

appScheleton.py

################################################################################
# mainMenu.py
mainMenu = [
    'Areas',
    'Volumes',
    'Funcoes e, Equacoes (FE)',
    'Potencias',
    'Radicais',
    'Trigonometria',
    'Geometria',
    'Logica Bivalente (LB)',
    'Vetores',
    'Estatistica',
    'Sucessoes',
    'Derivadas',
    'Conjuntos e Probabilidades (CB)',
    'Logaritimos',
    'Limites Notaveis (LN)',
    'Numeros Complexos (NC)',
]
      
  
################################################################################
# plugin_areas.py
from util import *

areasMenu = [
    'Quadrado',
    'Retangulo',
    'Triangulo',
    'Losangulo',
    'Trapezio',
    'Poligono Regular',
    'Circulo',
    'Cone',
    'Esfera',
    'Voltar',
]


def calcAreas():
    print('''Qual area deseja calcular:''')
    printMenu(areasMenu)
    
    while True:
        option = input('> ').upper()
        if option == 'QUADRADO':
            n1 = int(input('Digite a medida de um dos lados do quadrado: '))
            r = print(f'A area do {option} é: {n1*n1}')

        elif option == 'RETANGULO':
            n1 = int(input('Digite o comprimento do retangulo:'))
            n2 = int(input('Digite a largura do retangulo: '))
            r = print(f'A area do {option} é: {n1}*{n2}={n1*n2}')

        elif option == 'VOLTAR':
            break
        #elif option == 'TRIANGULO':
        #    n1 = int(

################################################################################
# util.py

#from importlib import import_module

def printMenu(menu):
    for item in menu:
        print(f'    {item}')


#def getHandler(name):
#    module = import_module(f"plugin_{name.lower()}")
#    name = name.title()
#    functionName = f"calc{name}"
#    return getattr(module, functionName, None)

################################################################################
# main.py

from mainMenu import mainMenu
from util import *

from plugin_areas import *


version = 'Xavier'

def greeting():
    print(f'Bem vindo(a) ao {version}. O que deseja calcular')
    
    
def getHandler(name):
    name = name.title()
    return globals().get(f"calc{name}")

    
def main():
    greeting()
    printMenu(mainMenu)
    
    while True:    
        resposta = input('>>> ').upper()
        handler = getHandler(resposta)
        if handler != None :
            handler()
        else:
            print('Comando não encontrado!!!')

main()