如何使用 mod_wsgi 和 Bottle 在 Web 浏览器中输出 int 类型？

Question

对于字符串，是输出

from bottle import route

@route('/')
def index():
    return '4'

---

如果是int，则不输出

·为什么？

from bottle import route

@route('/')
def index():
    return 4

---

环境

・Python 3.6

・bottel 0.13

・铬

Answer 1

代码没有问题

from bottle import route

@route('/')
def index():
    return '4'

@route('/')
def index2():
    return 4

print("type of ", index()," is ", type(index()))
print("type of ", index2()," is ", type(index2()))

我得到了结果：

type of  4  is  <class 'str'>
type of  4  is  <class 'int'>