I have a variable, that we'll call x , which stores the string test
I have another variable, that we'll call y , which stores the string value x
Is there any way that I could print(y) , in order to return test
In other words, how can I print the value of y which itself stores the name of the variable x ?
I should also mention that I cannot just print(x) , because x changes, (as does its string value).
>>> x="test"
>>> y="x"
>>> eval(y)
'test'
But don't use eval. A better approach would be to use a mapping, such as a dictionary.
>>> mapping = {"x": "test"}
>>> mapping[y]
'test'
Actually, variables in python are in a dictionary anyway, accessible via either the globals() or locals() builtins. So, another way to access a name dynamically is…
>>> globals()[y]
'test'
…but this is just a more magical and less clear solution to creating the dictionary that you really need.
You can create a dictionary:
d = {"x": "test"}
y = "x"
print(d[y])
If you want to use variable x then you can set some value to x as initializing. As you said x value can change:
x = None # can be any value depending on the user.
d = {x: "test"}
y = x
print(d[y])
Output:
"test"
