python - 我收到错误TypeError : 'int' object is not callable

Question

richness = int(input("How many species are in your ecosystem? "))
population = 0
for x in range (1, (richness+1)):
    population = population + int(input("What's the population of species " + str(x) + "? "))
print("Your species richness is " + str(richness))
print("Your simpsons biodiversity index is " + str(1-((population(population-1))/(richness(richness-1)))))

我是为一个Bio项目写的，但我不知道是什么问题。它似乎来自最后一行。

Answer 1

您调用population(population - 1)(在最后一行)，当它是一个变量时，它将population视为一个函数。
如果要“将它们多个”，则必须使用population * (population - 1)明确声明。 richness存在相同的问题