Исправлена взаимодействие с ac_ переменнымы неустановленного модуля

pym/calculate/lib/datavars.py

@@ -56,6 +56,9 @@ class CriticalError(Exception):
 class DataVarsError(Exception):
     """Exception of getting variable values"""
 
+class ImportModuleDataVarsError(DataVarsError):
+    """Ошибка импортирования модуля"""
+
 class VariableError(Exception):
     """Exception of sended by Variable"""
 
@@ -1137,7 +1140,7 @@ class DataVars(SimpleDataVars):
         raise DataVarsError(_("Variable %s not found")%varname)
 
     def raiseModuleError(self,module,error,*args,**kwargs):
-        raise DataVarsError("\n".join([
+        raise ImportModuleDataVarsError("\n".join([
             _("Failed to import module %s")%module,
             _("error")  + ": " +str(error)]))
 
@@ -1318,7 +1321,12 @@ class DataVars(SimpleDataVars):
             section,varname = self.splitVarname(varname)
             if not varname in self.loadVariables or \
                 not section in self.importedModules:
-                self.loadVariable(varname,section=section)
+                try:
+                    self.loadVariable(varname,section=section)
+                except ImportModuleDataVarsError:
+                    if varname.startswith("ac_"):
+                        return ""
+                    raise
             varObj = self.loadVariables[varname]
 
             # check section