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python Programming Glossary: self.nHow to create a menu and submenus in Python curses? http://stackoverflow.com/questions/14200721/how-to-create-a-menu-and-submenus-in-python-curses self.screen.keypad 1 self.h curses.color_pair 1 self.n curses.A_NORMAL for item in options k v item.items 0 self.datum.. n if n self.pos screen.addstr 5 n 4 d. s n optn self.n else screen.addstr 5 n 4 d. s n optn self.h screen.refresh.. self.items self.position 1 elif key curses.KEY_UP self.navigate 1 elif key curses.KEY_DOWN self.navigate 1 self.window.clear..
Python class variable int vs array http://stackoverflow.com/questions/16805648/python-class-variable-int-vs-array class Foo a n 0 def bar self self.a.append 'foo' self.n 1 x Foo print x.a x.n 0 x.bar print x.a x.n 'foo' 1 y Foo print.. between all instances of Foo . However when you update self.n with you actually create an instance level variable on self.. list that Foo.a points to. On the other hand when you do self.n 1 the interpreter Fetches n from Foo because it can't find n..
Python: Memory usage and optimization when modifying lists http://stackoverflow.com/questions/2631053/python-memory-usage-and-optimization-when-modifying-lists def __init__ self self.first None self.last None self.n 0 def __len__ self return self.n def __iter__ self return DLLIter.. None self.last None self.n 0 def __len__ self return self.n def __iter__ self return DLLIter self def iterator self return.. if self.last is None x.prev None self.last x self.first x self.n 1 else x.prev self.last x.prev.next x self.last x self.n 1 class..
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