在 python 中，我收到此错误 TypeError: '>=' not supported between 'function' and 'int' instances答案

【问题标题】：In python, I received this error TypeError: '>=' not supported between instances of 'function' and 'int'在 python 中，我收到此错误 TypeError: '>=' not supported between 'function' and 'int' instances
【发布时间】：2017-10-25 02:30:04
【问题描述】：

到目前为止我的代码：

def book_point():
      displayoints = 0
      books = 0
      setmessage()
      books = bookinput()
      displayoints = display(bookinput)

    def setmessage():
      print ("Hello, please enter the number of books that you has purchased this month and we will displays the points awarded you have")

    def bookinput():
      books = 0
      books = int(input("Enter number: "))
      return books

    def display(bookinput):
      if bookinput == 0:
       print ("You have 0 point")
      elif bookinput == 1:
       print ("You have 5 points awarded")
      elif bookinput == 2:
       print ("You have 15 points awarded")
      elif bookinput == 3:
       print ("You have 30 points awarded")
      elif bookinput >= 4:
        print ("You have 60 points awarded")
      else:
       print ("Invalid number")
    book_point()

在执行时，它会显示 Traceback（最近一次调用最后一次）：文件“python”，第 29 行，在 book_point 中的文件“python”，第 6 行文件“python”，第 25 行，显示中 TypeError: 'function' 和 'int' 的实例之间不支持 '>='

【问题讨论】：

看起来 bookinput 应该是书籍。 bookinput 是一个函数，那么如何比较 bookinput >= 4？

标签： python-3.x

【解决方案1】：

没关系，我得到了答案

def book_point():
  displayoints = 0
  books = 0
  setmessage()
  books = bookinput()
  displayoints = display(books)

def setmessage():
  print ("Hello, please enter the number of books that you has purchased this month and we will displays the points awarded you have")

def bookinput():
  books = 0
  books = int(input("Enter number: "))
  return books

def display(books):
  if books == 0:
    print ("You have 0 point")
  elif books == 1:
    print ("You have 5 points awarded")
  elif books == 2:
    print ("You have 15 points awarded")
  elif books == 3:
    print ("You have 30 points awarded")
  elif books >= 4:
    print ("You have 60 points awarded")
  else:
    print ("Invalid number")
book_point()

【讨论】：