Looping over widgets in Tkinter
Your consistant name scheme let you use the variable name to iterate through your variables:
for i in range(1,n): label = getattr(self, "lab"+str(i))You may also consider relying on Tkinter whom retain a tree structure of your widgets accessible through children widget attribute (a dictionary):
for child in frame.children.values(): #do something to all childrenAnd eventually add some filtering if your frame contains other widgets. For instance, to filter on classes of widgets:
for label in filter(lambda w:isinstance(w,Label), frame.children.itervalues()): #do something on labelsNote that children does not have any guarantee on order traversal. For such service, you may rely on geometry manager infos, ie pack_slaves or grid_slaves:
for child in frame.pack_slaves(): #traverse in pack addition order#orfor child in reversed(frame.grid_slaves()): #traverse in grid addition order