Fixed issue with 'maxtem off' command

pykat/finesse.py

@@ -184,7 +184,11 @@ class kat(object):
     @property
     def maxtem(self): return self.__maxtem
     @maxtem.setter
-    def maxtem(self,value): self.__maxtem = int(value)
+    def maxtem(self,value):
+        if value == "off":
+            self.__maxtem = -1
+        else:
+            self.__maxtem = int(value)
     
     @property
     def phase(self): return self.__phase
@@ -309,6 +313,9 @@ class kat(object):
                     v = line.split(" ")
                     if len(v) != 2:
                         raise pkex.BasePyKatException("maxtem command `{0}` is incorrect.".format(line))
+                    else:
+			if v[1] == "off":
+				self.maxtem = -1
 			else:
 	                        self.maxtem = int(v[1])
                 elif(first == "retrace"):
@@ -691,7 +698,11 @@ class kat(object):
 
         if self.scale != None and self.scale !='': out.append("scale {0}\n".format(self.scale))
         if self.phase != None: out.append("phase {0}\n".format(self.phase))
-        if self.maxtem != None: out.append("maxtem {0}\n".format(self.maxtem))            
+        if self.maxtem != None:
+                if self.maxtem == -1:
+                        out.append("maxtem off\n")
+                else:
+                        out.append("maxtem {0}\n".format(self.maxtem))
 
         if self.noxaxis == True:
             out.append("noxaxis\n")