Changing variable names

[naive wedge]

What do you mean, can't change variable names? In Python there are just names that are bound to values. How that behaves depends on whether the value type is a mutable and scope considerations.

What are you trying to accomplish?

[keen canyon]

I have several label widgets in a frame. I receive data and depending on the data want to update only one widget.

example - "label_BTN" "label_SPN" "label_B1N" and "label_FTN" widgets
receive data "BTNdeft12"
and want to update the "label_BTN" text only with "deft12"

[somber girder]

what type of object are your labels? If your using the Adafruit_CircuitPython_Display_Text library Labels you can change the text showing on those with the text property. Like my_label.text = "something new"

[naive wedge]

The unsafe hack would be

label = globals().get(f"label_{data[:3]}")
if label:
    label.configure(text=data[3:])
    label.update()

But you'd want to keep a dict of labels by name, instead of digging in the complete global scope with tainted data from the network.
And you'd probably want to check out foamguy's comment.

[keen canyon]

That's what I'm doing. just modifying the text property in the label widget. I'm new to python code and I can just update all label.text properties every time i receive data, but want to have object type of flow.
There are about 16 widgets to display and i can just get by with updating the ones that data hasn't changed, but wanted to pass a different label name to a def to do the update.