Python tuple decomposition with unused elements

Asked Apr 05 '16 at 20:42

Active Aug 24 '16 at 11:43

Viewed 34 times

I have a for-loop with with a tuple decomposition expression. maybe it's known as tuple unpacking.

Example code:

for funcname,func in self.GetMethods:
  # do somthing with func
  # funcname is unused

My code checking tool (I'm testing Landscape.io) complains about funcname as a unused variable.

How can I satisfy Landscape.io and maybe other checkers?

I saw loop like this:

for _,func in self.Getmethods:
  # loop body

Is _ a:

edited Aug 24 '16 at 11:43

asked Apr 05 '16 at 20:42

Paebbels

It basically means you don't care about and won't be using the variable. – Padraic Cunningham Apr 05 '16 at 20:45
I found [this question](http://stackoverflow.com/a/1708304/3719459), covering what `_` is. But does it satisfy Landscape.io or other checkers? – Paebbels Apr 05 '16 at 20:46
It should. Did it not work when you tried it? – user2357112 Apr 05 '16 at 20:47
yes, it should do. – Padraic Cunningham Apr 05 '16 at 20:48
The release process requires same steps until my local changes are propagated to Landscape.io and I get a final report out of it :) – Paebbels Apr 05 '16 at 20:50
It is pretty much the idiomatic way to declare and unused variable in python, if it did not work I would consider your checker to be wrong more than your logic – Padraic Cunningham Apr 05 '16 at 20:52
**Ok, I can confirm that using `_` satisfies Landscape.io.** – Paebbels Apr 05 '16 at 21:46

0 Answers0