Pylint thinks sklearn.metrics.log_loss returns a tuple

[sam-s]

Steps to reproduce

1. create file with

import sklearn.metrics
foo = sklearn.metrics.log_loss(...)
bar = - foo

2. Run it through pylint

Current behavior

 (E1130, invalid-unary-operand-type, myfile) bad operand type for unary -: tuple

Expected behavior

no errors, no warnings

pylint --version output

pylint 1.7.1, 
astroid 1.5.2
Python 2.7.13 (default, Dec 18 2016, 07:03:39) 
[GCC 4.2.1 Compatible Apple LLVM 8.0.0 (clang-800.0.42.1)]

[sam-s]

Same problem with

pylint 1.8.4, 
astroid 1.6.3
Python 3.6.5 (default, Mar 30 2018, 06:41:53) 
[GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.39.2)]

[albertzang]

Same problem here

pylint 1.9.1, 
astroid 1.6.4
Python 3.6.5 |Anaconda, Inc.| (default, Apr 26 2018, 08:42:37) 
[GCC 4.2.1 Compatible Clang 4.0.1 (tags/RELEASE_401/final)]

[sam-s]

Same problem with

pylint 2.0.0.dev2
astroid 2.0.0.dev3
Python 3.7.0 (default, Jun 29 2018, 20:13:13) 
[Clang 9.1.0 (clang-902.0.39.2)]

[PCManticore]

The issue has not been closed yet, so this problem is still here on all versions until the issue gets closed.

[sam-s]

still with

pylint 2.11.1
astroid 2.8.0
Python 3.9.7 (default, Sep  3 2021, 12:45:31) 
[Clang 12.0.0 (clang-1200.0.32.29)]