[Tutor] A program that can check if all elements of the list are mutually disjoint

[Manprit Singh]

Dear sir ,
Sorry  i have written lst in place of arr:
correct function is

import itertools
def is_mutually_disjoint(arr):
    comb = itertools.combinations(arr, 2)
    return all(set(ele1).isdisjoint(ele2) for ele1, ele2 in comb)

Kindly comment now .....


On Sun, Jun 6, 2021 at 2:21 PM Peter Otten <__peter__ at web.de> wrote:

> On 06/06/2021 10:19, Manprit Singh wrote:
> > Dear sir ,
> > Thanks to Roel . Finally today I have understood the importance of
> standard
> > library modules, I work with mostly numbers when programming , and feel
> > that itertools is very very useful.
> > The solution that i do agree is as follows and seems readable to me too:
> >
> > import itertools
> > def is_mutually_disjoint(arr):
> >      comb = itertools.combinations(lst, 2)
> >      return all(set(ele1).isdisjoint(ele2) for ele1, ele2 in comb)
>
> Note that there's a bug in the above function (try running it with a
> list literal) giving you a chance to learn why global variables should
> be avoided ;)
>
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