如何在 python 3.7 中打印组合的 var 名称

Question

I would like to print new_firstsecond's value, without knowing it's name in advance, how can I do this in python 3.7?

var1 = "first"
var2 = "second"

new_firstsecond = "some value"

print("new_"+f"{vars()[var1]}"+f"{vars()[var2]}")

Answer 1

You can do something like this,

var1 = "first"
var2 = "second"

new_firstsecond = "some value"

for variable, value in globals().copy().items():
    print(variable, value)