working directory list built-in function about converting objects to lists iteration protocol and type customization and list comprehensions about - - extended syntax - files and filter built-in function and - for statement and functional tools - generator expressions and map built-in function versus matrixes and - range built-in function and usage considerations - list-unpacking assignments lists (list objectabout - append method bounds checking changing in place - common operations comparison operations concatenating copy method count method deleting items dictionaries versus empty lists extend method index method indexing - insert method iteration in literals matrixes and mutable nature of nesting pop method quiz questions and answers remove method repeating reverse method sequence operations slicing - sort method - tuples versus type-specific methods - type-specific operations literals about built-in object type examples byte string dictionary file hexoctalbinary notation - integer objects - list numeric - set string - - tuple unicode little-endian format - local scope about class statement and legb rule and local variables logical operations lookuperror class loops (see also specific statementsattribute interception methods and breaking out of coding techniques for - else clause - function-related gotchas interactive - iterations and - - nesting - - quiz questions and answers recursion versus __lt__ method mac os platform frozen binaries and gui support icon clicks idle startup details installing python index