Explanation: The beauty of python list datatype is that within a list, a programmer can nest another list, a dictionary or a tuple. Since in the code there are 6 items present in the list the length of the list is 6.
Explanation: In python list slicing can also be done by using the syntax listName[x:y:z] where x means the initial index, y-1 defines the final index value and z specifies the step size. If anyone of the values among x, y and z is missing the interpreter takes default value. Note: 1. For x default value is 0 i.e. start of the list. 2. For y default value is length of the list. 3. For z default value is 1 i.e. every element of the list.
d1 =[10, 20, 30, 40, 50]
d2 =[1, 2, 3, 4, 5]
Explanation: Unlike addition or relational operators not all the arithmetic operators can use lists as their operands. Since – minus operator can’t take lists as its operand no output will be produced. Program will produce following error.
TypeError: unsupported operand type(s) for -: 'list' and 'list'
list=['a', 'b', 'c', 'd', 'e']
Explanation: As one would expect, attempting to access a member of a list using an index that exceeds the number of members (e.g., attempting to access list in the list above) results in an IndexError. However, attempting to access a slice of a list at a starting index that exceeds the number of members in the list will not result in an IndexError and will simply return an empty list.
list=['a', 'b', 'c']*-3
Explanation: A expression list[listelements]*N where N is a integer appends N copies of list elements in the original list. If N is a negative integer or 0 output will be a empty list else if N is positive list elements will be added N times to the original list.
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