Conan: [bug] module 'six.moves' has no attribute 'collections_abc'

[wpalfi]

Environment Details (include every applicable attribute)

• Operating System+version: Windows
• Compiler+version: Visual Studio
• Conan version: 1.28.0
• Python version: 3.6.3

We got the error somewhere during conan install. I found six.moves.collections_abc in https://github.com/conan-io/conan/blob/1.28.0/conans/util/misc.py. collections_abc was added to six in version 1.13 but conan currently depends on six >=1.5.

[lasote]

Hi! Thanks for reporting.
Yes, it looks like collections_abc was introduced in six 1.13 but Conan requires six>=1.10.0,<=1.14.0 not >=1.5, right?
Anyway it looks like we should adjust the range.

[memsharded]

Or we could replace:

if isinstance(value, six.moves.collections_abc.Iterable):
#for something like
if isinstance(value, (list, tuple, set)):

It is not that critical to support any abstraction of Iterable for this case

[DoDoENT]

I've just got the same error with conan 1.28.1

[DoDoENT]

By manually upgrading astroid to 2.4.0 and six to 1.13, the problem got away.

[memsharded]

Does it make sense to backport #7545 to Conan 1.28.2, @jgsogo ?