Question

I like to know what was the local variable names when they are passed to a function. I’m not sure whether this is possible at all. Let’s consider this example:

function definition:

def show(x):
  print(x)

usage:

a = 10
show(a)

this prints 10. But I like to print “a = 10”. Is this possible in python?

Answer 1

No, you cannot know what the name was of the local variable used to pass a value to your function.

This is an impossible task in any case. What would be the variable name in the following example?

arguments = ('a', 1, 10)
somefunction(*(arguments[:2] + [10]))

Here we pass in 3 arguments, two taken from a tuple we defined earlier, and one literal value, and all three are passed in using the variable argument list syntax.