在函数中定义的变量 - Python

Question

I am running this code: https://dpaste.de/RiAP

As you see, the variable linespecificpayload is used only within this function, but if I check the ID, its the same in every function call.

I can't seem to figure out how to flush its value with each call. Both the call for id(linespecificpayload) return the same value. Any suggestions would be welcome.

Also the code is something I wrote in an hour or two. So may not be the most efficient one.

Answer 1

The reason is that you are assigning a global object to linespecificpayload , thus the reference stays the same.

If you would like to create a copy of the filespecificpayload dict you can either:

• use filespecificpayload.copy() . This will create a copy of the dict, but the values that existed before copying will be shared so that id(filespecificpayload[key]) == id(filespecificpayload.copy()[key])

• use copy.deepcopy() :

   >>> from copy import deepcopy >>> d = deepcopy(filespecificpayload) >>> id(d[key]) == id(filespecificpayload[key]) False