On Sat, Jan 26, 2019 at 10:20:11AM -0800, Christopher Barker wrote:
My first thought was that function return tuples, so you could document that your function should be called as such:
x = fun()[0]
but, alas, tuple unpacking is apparently automatically disabled for single value tuples (how do you distinguish a tuple with a single value and the value itself??)
The time machine strikes again. We have not one but THREE ways of doing so (although two are alternate ways of spelling the same thing): py> def func(): ... return [1] ... py> (spam,) = func() # use a 1-element tuple on the left py> [spam] = func() # or a list py> spam 1 py> spam, *ignore = func() py> spam 1 py> ignore [] But if you're extracting a single value using subscripting on the right hand side, you don't need anything so fancy: py> eggs = func()[0] # doesn't matter how many items func returns py> eggs 1 -- Steve