diff -r ccf59c1f0b45 -r c1e5b9f19483 editors/FileManagementPanel.py
--- a/editors/FileManagementPanel.py	Thu Aug 17 16:26:32 2017 +0300
+++ b/editors/FileManagementPanel.py	Thu Aug 17 17:25:17 2017 +0300
@@ -162,8 +162,8 @@
 
     def OnEditButton(self, event):
         filepath = self.ManagedDir.GetPath()
-        if (os.path.isfile(filepath) and
-            os.path.splitext(filepath)[1] in self.EditableFileExtensions):
+        if os.path.isfile(filepath) and \
+           os.path.splitext(filepath)[1] in self.EditableFileExtensions:
             self.Controler._OpenView(filepath + "::")
         event.Skip()