Fixing flake8 errors

lbmpy/creationfunctions.py

@@ -258,8 +258,8 @@ class LBMConfig:
 
     psm_config: PSMConfig = None
     """
-    If a PSM config is specified, (1 - fractionField) is added to the relaxation rates of the collision and to the potential force term, 
-    and a solid collision is build and added to the main assignments.
+    If a PSM config is specified, (1 - fractionField) is added to the relaxation rates of the collision 
+    and to the potential force term, and a solid collision is build and added to the main assignments.
     """
 
     output: dict = field(default_factory=dict)

lbmpy/methods/creationfunctions.py

@@ -370,7 +370,8 @@ def create_central_moment(stencil, relaxation_rates, nested_moments=None,
     rr_dict = _get_relaxation_info_dict(relaxation_rates, nested_moments, stencil.D)
     if fraction_field is not None:
         relaxation_rates_modifier = (1.0 - fraction_field.center)
-        rr_dict = _get_relaxation_info_dict(relaxation_rates, nested_moments, stencil.D, relaxation_rates_modifier=relaxation_rates_modifier)
+        rr_dict = _get_relaxation_info_dict(relaxation_rates, nested_moments, stencil.D,
+                                            relaxation_rates_modifier=relaxation_rates_modifier)
 
     if continuous_equilibrium:
         return create_with_continuous_maxwellian_equilibrium(stencil, rr_dict, **kwargs)

lbmpy/methods/momentbased/momentbasedmethod.py

@@ -178,7 +178,8 @@ class MomentBasedLbMethod(AbstractLbMethod):
 
         if self.fraction_field is not None:
             relaxation_rates_modifier = (1.0 - self.fraction_field.center)
-            rr_sub_expressions, d = self._generate_symbolic_relaxation_matrix(relaxation_rates_modifier=relaxation_rates_modifier)
+            rr_sub_expressions, d = self._generate_symbolic_relaxation_matrix(
+                relaxation_rates_modifier=relaxation_rates_modifier)
         else:
             rr_sub_expressions, d = self._generate_symbolic_relaxation_matrix()