Resolve pylint line-too-long for linops (#682)

* Remove line-to-long for _problems

* Remove

* Remove line-too-long for _scaling

* -

* Remove line-too-long from /linops and add to/problems

* Update _kronecker.py

* Fix trailing-whitespace

* Fix trailing whitespace for kroneker

* Fix trailing-whitespaces for _linear_operator

src/probnum/linops/_kronecker.py

@@ -13,7 +13,10 @@
 class Symmetrize(_linear_operator.LinearOperator):
     r"""Symmetrizes a vector in its matrix representation.
 
-    Given a vector :math:`x=\operatorname{vec}(X)` representing a square matrix :math:`X`, this linear operator computes :math:`y=\operatorname{vec}(\frac{1}{2}(X + X^\top))`.
+    Given a vector :math:`x=\operatorname{vec}(X)`
+    representing a square matrix :math:`X`,
+    this linear operator computes :math:
+    `y=\operatorname{vec}(\frac{1}{2}(X + X^\top))`.
 
     Parameters
     ----------

src/probnum/linops/_linear_operator.py

@@ -32,8 +32,8 @@ class LinearOperator:
     :class:`LinearOperator`, that defers linear operations to the original operators and
     combines the results.
 
-    To construct a concrete :class:`LinearOperator`, either pass appropriate callables to
-    the constructor of this class, or subclass it.
+    To construct a concrete :class:`LinearOperator`, either pass appropriate callables
+    to the constructor of this class, or subclass it.
 
     A subclass must implement either one of the methods ``_matvec`` and ``_matmat``, and
     the attributes/properties ``shape`` (pair of integers) and ``dtype`` (may be
@@ -254,7 +254,8 @@ def astype(
         casting:
             Controls what kind of data casting may occur.
         subok:
-            If True, then sub-classes will be passed-through (default). False is currently not supported for linear operators.
+            If True, then sub-classes will be passed-through (default).
+            False is currently not supported for linear operators.
         copy:
             Whether to return a new linear operator, even if ``dtype`` is the same.
         """
@@ -828,8 +829,9 @@ def __matmul__(
         Returns
         -------
         y :
-            A `np.matrix` or `np.ndarray` or `RandomVariable` with shape `(M,)` or `(M, 1)`,
-            depending on the type and shape of the x argument.
+            A `np.matrix` or `np.ndarray` or `RandomVariable` with
+            shape `(M,)` or `(M, 1)`,depending on the type and
+            shape of the x argument.
         Notes
         -----
         This matvec wraps the user-specified matvec routine or overridden

src/probnum/linops/_scaling.py

@@ -16,7 +16,8 @@
 class Scaling(_linear_operator.LinearOperator):
     r"""Scaling linear operator.
 
-    Creates a diagonal linear operator which (non-uniformly) scales elements of vectors, defined by
+    Creates a diagonal linear operator which (non-uniformly)
+    scales elements of vectors, defined by
 
     .. math::
         v \mapsto \begin{bmatrix}

tox.ini

@@ -69,7 +69,7 @@ commands =
     pylint src/probnum/diffeq --disable="redefined-outer-name,too-many-instance-attributes,too-many-arguments,too-many-locals,too-few-public-methods,protected-access,unnecessary-pass,unused-variable,unused-argument,no-else-return,no-else-raise,no-self-use,duplicate-code,line-too-long,missing-function-docstring,missing-param-doc,missing-type-doc,missing-raises-doc,missing-return-type-doc" --jobs=0
     pylint src/probnum/filtsmooth --disable="no-member,arguments-differ,too-many-arguments,too-many-locals,too-few-public-methods,protected-access,unused-variable,unused-argument,no-self-use,duplicate-code,useless-param-doc" --jobs=0
     pylint src/probnum/linalg --disable="no-member,abstract-method,arguments-differ,redefined-builtin,too-many-instance-attributes,too-many-arguments,too-many-locals,too-many-lines,too-many-statements,too-many-branches,too-complex,too-few-public-methods,protected-access,unused-argument,attribute-defined-outside-init,no-else-return,no-else-raise,no-self-use,else-if-used,duplicate-code,line-too-long,missing-module-docstring,missing-param-doc,missing-type-doc,missing-raises-doc,missing-return-type-doc" --jobs=0
-    pylint src/probnum/linops --disable="too-many-instance-attributes,too-many-arguments,too-many-locals,protected-access,no-else-return,no-else-raise,else-if-used,line-too-long,missing-class-docstring,missing-function-docstring,missing-raises-doc,duplicate-code" --jobs=0
+    pylint src/probnum/linops --disable="too-many-instance-attributes,too-many-arguments,too-many-locals,protected-access,no-else-return,no-else-raise,else-if-used,missing-class-docstring,missing-function-docstring,missing-raises-doc,duplicate-code" --jobs=0
     pylint src/probnum/problems --disable="too-many-arguments,too-many-locals,unused-variable,unused-argument,else-if-used,consider-using-from-import,duplicate-code,line-too-long,missing-module-docstring,missing-function-docstring,missing-param-doc,missing-type-doc,missing-raises-doc" --jobs=0
     pylint src/probnum/quad --disable="too-many-arguments,missing-module-docstring" --jobs=0
     pylint src/probnum/randprocs --disable="arguments-differ,arguments-renamed,too-many-instance-attributes,too-many-arguments,too-many-locals,protected-access,unused-argument,no-else-return,duplicate-code,line-too-long,missing-module-docstring,missing-class-docstring,missing-function-docstring,missing-type-doc,missing-raises-doc,useless-param-doc,useless-type-doc,missing-return-type-doc" --jobs=0