diff --git a/src/Mod/Fem/femsolver/calculix/tasks.py b/src/Mod/Fem/femsolver/calculix/tasks.py
index 1d9e3f8f42..4c347b4f76 100644
--- a/src/Mod/Fem/femsolver/calculix/tasks.py
+++ b/src/Mod/Fem/femsolver/calculix/tasks.py
@@ -81,7 +81,8 @@ class Prepare(run.Prepare):
             c.beam_rotations,
             c.shell_thicknesses,
             c.fluid_sections,
-            self.directory)
+            self.directory
+        )
         path = w.write_calculix_input_file()
         # report to user if task succeeded
         if path != "":
diff --git a/src/Mod/Fem/femsolver/calculix/writer.py b/src/Mod/Fem/femsolver/calculix/writer.py
index c0bbac96ac..d0909853fb 100644
--- a/src/Mod/Fem/femsolver/calculix/writer.py
+++ b/src/Mod/Fem/femsolver/calculix/writer.py
@@ -38,30 +38,30 @@ import six
 
 
 class FemInputWriterCcx(FemInputWriter.FemInputWriter):
-    def __init__(self,
-                 analysis_obj,
-                 solver_obj,
-                 mesh_obj,
-                 matlin_obj,
-                 matnonlin_obj,
-                 fixed_obj,
-                 displacement_obj,
-                 contact_obj,
-                 planerotation_obj,
-                 transform_obj,
-                 selfweight_obj,
-                 force_obj,
-                 pressure_obj,
-                 temperature_obj,
-                 heatflux_obj,
-                 initialtemperature_obj,
-                 beamsection_obj,
-                 beamrotation_obj,
-                 shellthickness_obj,
-                 fluidsection_obj,
-                 dir_name=None
-                 ):
-
+    def __init__(
+        self,
+        analysis_obj,
+        solver_obj,
+        mesh_obj,
+        matlin_obj,
+        matnonlin_obj,
+        fixed_obj,
+        displacement_obj,
+        contact_obj,
+        planerotation_obj,
+        transform_obj,
+        selfweight_obj,
+        force_obj,
+        pressure_obj,
+        temperature_obj,
+        heatflux_obj,
+        initialtemperature_obj,
+        beamsection_obj,
+        beamrotation_obj,
+        shellthickness_obj,
+        fluidsection_obj,
+        dir_name=None
+    ):
         FemInputWriter.FemInputWriter.__init__(
             self,
             analysis_obj,
@@ -84,7 +84,8 @@ class FemInputWriterCcx(FemInputWriter.FemInputWriter):
             beamrotation_obj,
             shellthickness_obj,
             fluidsection_obj,
-            dir_name)
+            dir_name
+        )
         from os.path import join
         self.main_file_name = self.mesh_object.Name + '.inp'
         self.file_name = join(self.dir_name, self.main_file_name)
diff --git a/src/Mod/Fem/femsolver/writerbase.py b/src/Mod/Fem/femsolver/writerbase.py
index 0c7150eb53..7ccb7a92c6 100644
--- a/src/Mod/Fem/femsolver/writerbase.py
+++ b/src/Mod/Fem/femsolver/writerbase.py
@@ -32,29 +32,30 @@ import os
 
 
 class FemInputWriter():
-    def __init__(self,
-                 analysis_obj,
-                 solver_obj,
-                 mesh_obj,
-                 matlin_obj,
-                 matnonlin_obj,
-                 fixed_obj,
-                 displacement_obj,
-                 contact_obj,
-                 planerotation_obj,
-                 transform_obj,
-                 selfweight_obj,
-                 force_obj,
-                 pressure_obj,
-                 temperature_obj,
-                 heatflux_obj,
-                 initialtemperature_obj,
-                 beamsection_obj,
-                 beamrotation_obj,
-                 shellthickness_obj,
-                 fluidsection_obj,
-                 dir_name
-                 ):
+    def __init__(
+        self,
+        analysis_obj,
+        solver_obj,
+        mesh_obj,
+        matlin_obj,
+        matnonlin_obj,
+        fixed_obj,
+        displacement_obj,
+        contact_obj,
+        planerotation_obj,
+        transform_obj,
+        selfweight_obj,
+        force_obj,
+        pressure_obj,
+        temperature_obj,
+        heatflux_obj,
+        initialtemperature_obj,
+        beamsection_obj,
+        beamrotation_obj,
+        shellthickness_obj,
+        fluidsection_obj,
+        dir_name
+    ):
         self.analysis = analysis_obj
         self.solver_obj = solver_obj
         self.analysis_type = self.solver_obj.AnalysisType
diff --git a/src/Mod/Fem/femsolver/z88/tasks.py b/src/Mod/Fem/femsolver/z88/tasks.py
index 8e7dfe7074..fe34b508c5 100644
--- a/src/Mod/Fem/femsolver/z88/tasks.py
+++ b/src/Mod/Fem/femsolver/z88/tasks.py
@@ -75,7 +75,8 @@ class Prepare(run.Prepare):
             c.beam_rotations,
             c.shell_thicknesses,
             c.fluid_sections,
-            self.directory)
+            self.directory
+        )
         path = w.write_z88_input()
         # report to user if task succeeded
         if path is not None:
diff --git a/src/Mod/Fem/femsolver/z88/writer.py b/src/Mod/Fem/femsolver/z88/writer.py
index ef3fef9977..ae4103b7f3 100644
--- a/src/Mod/Fem/femsolver/z88/writer.py
+++ b/src/Mod/Fem/femsolver/z88/writer.py
@@ -34,30 +34,30 @@ from .. import writerbase as FemInputWriter
 
 
 class FemInputWriterZ88(FemInputWriter.FemInputWriter):
-    def __init__(self,
-                 analysis_obj,
-                 solver_obj,
-                 mesh_obj,
-                 matlin_obj,
-                 matnonlin_obj,
-                 fixed_obj,
-                 displacement_obj,
-                 contact_obj,
-                 planerotation_obj,
-                 transform_obj,
-                 selfweight_obj,
-                 force_obj,
-                 pressure_obj,
-                 temperature_obj,
-                 heatflux_obj,
-                 initialtemperature_obj,
-                 beamsection_obj,
-                 beamrotation_obj,
-                 shellthickness_obj,
-                 fluidsection_obj,
-                 dir_name=None
-                 ):
-
+    def __init__(
+        self,
+        analysis_obj,
+        solver_obj,
+        mesh_obj,
+        matlin_obj,
+        matnonlin_obj,
+        fixed_obj,
+        displacement_obj,
+        contact_obj,
+        planerotation_obj,
+        transform_obj,
+        selfweight_obj,
+        force_obj,
+        pressure_obj,
+        temperature_obj,
+        heatflux_obj,
+        initialtemperature_obj,
+        beamsection_obj,
+        beamrotation_obj,
+        shellthickness_obj,
+        fluidsection_obj,
+        dir_name=None
+    ):
         FemInputWriter.FemInputWriter.__init__(
             self,
             analysis_obj,
@@ -80,7 +80,8 @@ class FemInputWriterZ88(FemInputWriter.FemInputWriter):
             beamrotation_obj,
             shellthickness_obj,
             fluidsection_obj,
-            dir_name)
+            dir_name
+        )
         from os.path import join
         self.file_name = join(self.dir_name, 'z88')
         FreeCAD.Console.PrintLog('FemInputWriterZ88 --> self.dir_name  -->  ' + self.dir_name + '\n')