Sumita Arora Solution

Default Argument def power(x,y=3):   for i in range(y):     r=r*x   return r a=intinput((“Enter Base”)) b=intinput((“Enter Exponent”)) total = power(a,b) print(total) Usage of Default Argument: •Matching arguments are not passed in the function call statement •Some argument always have same value. Keyword Argument def power(x,y):   for i in range(y):     r=r*x […]

Default Argument: It is a Parameter initialized with default value in function header or definition. It is useful when • Matching arguments are not passed in the function call statement • Some argument always have same value. Keyword Argument: Also known as named arguments. A value being passed during function call with specified name is

Argument is data being passed to a function through function call.Parameter is data being received by a function in function header. Because both belongs to same function, Arguments appear in function call statement and Parameter appears in function header, so we can say these terms are related.

A function header gives us information about- • Function name • No of Parameters • Return value • Action performed by function

A program having functions is considered better designed because- 1) The program becomes easier to read 2) The program becomes less error prone 3) Complexity of program is reduced 4) Repetition of code is reduced 5)Making changes or updating is easier.

if we try to index a nonexistent key (D[‘d’])  than it will produce ‘keyerror’. if we try to assign to a nonexistent key d than it will add a new element in dictionary.

Yes we can modify the content of a dictionary. only values part of dictionary is modifiable. we can not modify keys of a dictionary.

tuples can be used as key in a dictionary only when it contains immutable type elements.

only immutable type of objects like string, tuple or integer etc. can be used as keys in the dictionaries.

Dictionary is termed as an unordered collection of object because it stores data as key-value pair and the pair of object they hold aren’t indexed implicitly.