Enable pylint check "missing-module-docstring" in random_variables

src/probnum/random_variables/_arithmetic.py

@@ -1,3 +1,6 @@
+""" This module implements binary arithmetic operators between pairs of random
+variables. """
+
 import operator
 from typing import Any, Callable, Dict, Tuple, Union
 

src/probnum/random_variables/_dirac.py

@@ -1,3 +1,5 @@
+""" This module implements Dirac-distributed random variables. """
+
 from typing import Callable, TypeVar
 
 import numpy as np

src/probnum/random_variables/_normal.py

@@ -1,3 +1,5 @@
+""" This module implements normally distributed or Gaussian random variables. """
+
 from typing import Callable, Optional, Union
 
 import numpy as np

tox.ini

@@ -60,7 +60,7 @@ commands =
          pylint src/probnum/filtsmooth --disable="duplicate-code,no-self-use,too-many-locals,too-many-arguments,unused-argument,missing-module-docstring,missing-function-docstring"
          pylint src/probnum/linalg --disable="attribute-defined-outside-init,too-many-statements,too-many-instance-attributes,too-complex,protected-access,too-many-lines,no-self-use,too-many-locals,redefined-builtin,arguments-differ,abstract-method,too-many-arguments,too-many-branches,duplicate-code,unused-argument,fixme,missing-module-docstring"
          pylint src/probnum/quad --disable="attribute-defined-outside-init,too-few-public-methods,redefined-builtin,arguments-differ,unused-argument,missing-module-docstring"
-         pylint src/probnum/random_variables --disable="fixme,missing-module-docstring,missing-function-docstring"
+         pylint src/probnum/random_variables --disable="fixme,missing-function-docstring"
          pylint src/probnum/utils --disable="duplicate-code,missing-module-docstring,missing-function-docstring"
          pylint tests --disable="line-too-long,duplicate-code,missing-class-docstring,unnecessary-pass,unused-variable,protected-access,attribute-defined-outside-init,no-self-use,abstract-class-instantiated,too-many-arguments,too-many-instance-attributes,too-many-locals,unused-argument,fixme,missing-module-docstring,missing-function-docstring"
          pylint benchmarks --disable="attribute-defined-outside-init,unused-argument,redefined-builtin,missing-class-docstring,duplicate-code,missing-function-docstring"