FEM: code formating, flake8

src/Mod/Fem/PyObjects/FemConstraint.py

@@ -26,11 +26,6 @@ __author__ = "Markus Hovorka"
 __url__ = "http://www.freecadweb.org"
 
 
-import FreeCAD
-if FreeCAD.GuiUp:
-    from pivy import coin
-
-
 class Proxy(object):
 
     BaseType = "Fem::ConstraintPython"

src/Mod/Fem/femsolver/run.py

@@ -59,7 +59,7 @@ def getMachine(solver, path=None):
 
 
 def _isPathValid(m, path):
-    t = _dirTypes.get(m.directory) # setting default None
+    t = _dirTypes.get(m.directory)  # setting default None
     setting = settings.getDirSetting()
     if path is not None:
         return t is None and m.directory == path

src/Mod/Fem/femtest/testfemcommon.py

@@ -74,7 +74,6 @@ solverframework_analysis_dir = temp_dir + 'FEM_solverframework/'
 solverframework_save_fc_file = solverframework_analysis_dir + static_base_name + '.fcstd'
 
 
-
 class FemTest(unittest.TestCase):
     def setUp(self):
         try:
@@ -1347,7 +1346,7 @@ class SolverFrameWorkTest(unittest.TestCase):
         fcc_print('Save FreeCAD file for static2 analysis to {}...'.format(solverframework_save_fc_file))
         self.active_doc.saveAs(solverframework_save_fc_file)
         fcc_print('--------------- End of FEM tests solver frame work ---------------')
- 
+
     def tearDown(self):
         FreeCAD.closeDocument("FemTest")
         pass