Python bottle 两次运行初始化方法

Question

Bottle 有问题，_initialize 函数运行了两次。示例应用:

 @route("/index")
 def index():
      return "bang"

 def _initialize():
      print("bam")

 if __name__ == "__main__":
     _initialize()
     run(reloader=True, host="localhost", port = 8990)

输出是:

bam
bam
Bottle v0.11.rc1 server starting up (using WSGIRefServer())...                             
Listening on http://localhost:8080/                                                        
Hit Ctrl-C to quit.

为什么会发生这种情况，我该如何在瓶中进行这种预初始化？

Answer 1

问题是 run 函数的 reloader=True 参数。参见 http://bottlepy.org/docs/dev/tutorial.html#auto-reloading对于句子:

All module-level code is executed at least twice! Be careful.