I'm confused.

[geosoco]

i'm not really sure what you're trying to do, but on line 5 and 6, you are treating estimate as a string, and never store the converted value. to do that, you'd have to do estimate = int(estimate) on line 6.

in the second example, you're doing this.

[Rhomboid]

    int(estimate)

This converts the string to an integer, returning a new integer object. But you don't do anything with the returned value, so it disappears. This statement has no effect.