diff --git a/src/Mod/Fem/femexamples/elmer_nonguitutorial01_eigenvalue_of_elastic_beam.py b/src/Mod/Fem/femexamples/elmer_nonguitutorial01_eigenvalue_of_elastic_beam.py
index 84e9256e53..192c285c4d 100644
--- a/src/Mod/Fem/femexamples/elmer_nonguitutorial01_eigenvalue_of_elastic_beam.py
+++ b/src/Mod/Fem/femexamples/elmer_nonguitutorial01_eigenvalue_of_elastic_beam.py
@@ -39,7 +39,7 @@ def get_information():
         "constraints": [],
         "solvers": ["calculix", "ccxtools", "elmer"],
         "material": "solid",
-        "equations": ["elasticity"] # "frequency", but list not allowed here
+        "equations": ["elasticity"]  # "frequency", but list not allowed here
     }
 
 
diff --git a/src/Mod/Fem/femsolver/elmer/equations/electrostatic_writer.py b/src/Mod/Fem/femsolver/elmer/equations/electrostatic_writer.py
index fe5fd34211..c09732f390 100644
--- a/src/Mod/Fem/femsolver/elmer/equations/electrostatic_writer.py
+++ b/src/Mod/Fem/femsolver/elmer/equations/electrostatic_writer.py
@@ -108,7 +108,7 @@ class ESwriter:
             self.write.constsdef["PermittivityOfVacuum"],
             "T^4*I^2/(L^3*M)"
         )
-        permittivity = round(permittivity, 20) # to get rid of numerical artifacts
+        permittivity = round(permittivity, 20)  # to get rid of numerical artifacts
         self.write.constant("Permittivity Of Vacuum", permittivity)
 
     def handleElectrostaticMaterial(self, bodies):
diff --git a/src/Mod/Fem/femsolver/elmer/equations/magnetodynamic2D_writer.py b/src/Mod/Fem/femsolver/elmer/equations/magnetodynamic2D_writer.py
index 7632174975..1be7da3818 100644
--- a/src/Mod/Fem/femsolver/elmer/equations/magnetodynamic2D_writer.py
+++ b/src/Mod/Fem/femsolver/elmer/equations/magnetodynamic2D_writer.py
@@ -130,7 +130,7 @@ class MgDyn2Dwriter:
                     )
                 self.write.material(name, "Name", m["Name"])
                 conductivity = self.write.convert(m["ElectricalConductivity"], "T^3*I^2/(L^3*M)")
-                conductivity = round(conductivity, 10) # to get rid of numerical artifacts
+                conductivity = round(conductivity, 10)  # to get rid of numerical artifacts
                 self.write.material(name, "Electric Conductivity", conductivity)
                 self.write.material(
                     name, "Relative Permeability",
diff --git a/src/Mod/Fem/femsolver/elmer/equations/magnetodynamic_writer.py b/src/Mod/Fem/femsolver/elmer/equations/magnetodynamic_writer.py
index 17df28dacb..1419b201e6 100644
--- a/src/Mod/Fem/femsolver/elmer/equations/magnetodynamic_writer.py
+++ b/src/Mod/Fem/femsolver/elmer/equations/magnetodynamic_writer.py
@@ -155,7 +155,7 @@ class MgDynwriter:
                     )
                 self.write.material(name, "Name", m["Name"])
                 conductivity = self.write.convert(m["ElectricalConductivity"], "T^3*I^2/(L^3*M)")
-                conductivity = round(conductivity, 10) # to get rid of numerical artifacts
+                conductivity = round(conductivity, 10)  # to get rid of numerical artifacts
                 self.write.material(name, "Electric Conductivity", conductivity)
                 self.write.material(
                     name, "Relative Permeability",