Default argument

Default Argument

In Python the default argument is an argument that takes a default value if no value is provided in the function call. The following example uses default arguments, that prints default salary when no argument is passed.


def printinfo( name, salary = 3500):
print (“Name: “, name)
print (“Salary: “, salary)


Name: Mani

Salary: 3500

When the above code is changed as print info(“Ram”,2000) it produces the following output:


Name: Ram

Salary: 2000

In the above code, the value 2000 is passed to the argument salary, the default value already assigned for salary is simply ignored.

Qus: What is a function? How is it useful?

A function is a named block in a program which has some certain working. Whenever you call this it performs all its working. It reduces the complexity and reduces the labour of writing same code again and again.

Qus: What is an argument? Give an example of one.

Ans : An argument is the requirement of a function to perform its working. For ex- pow(x,y), here x and y are the arguments which are required to pass to pow() for its working.

Qus. What is a string slice? How is it useful?

Ans: String Slice is a part of a string containing some contiguous characters from the string. It is accessed from the string by providing a range in ―[ ]‖ brackets i.e. S [n:m]. Python returns all the characters at indices n, n+1, n+2 . . . m-1 e.g. 'Barabanki'.[4:7] will return 'ban'.

Qus. Which functions would you chose to use to remove leading and trailing white spaces from a given string?

Ans: Python String strip() function will remove leading and trailing white spaces. If you want to remove only leading or trailing spaces, use lstrip() or rstrip() function instead.

Qus. Suggest appropriate functions for the following tasks –

(a) To check whether the string contains digits.

(b) To find the occurrence a string within another string.

(c) To convert the first letter of a string to upper case.

(d) To convert all the letters of a string to upper case.

(f) To check whether all the letters of the string are in capital letters.

(g) to remove all the white spaces from the beginning of a string.

Ans.  (a) isalnum() (b) find() (c) capitalize()   (d) upper() (f) isupper() (g) lstrip()


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WAP to print the number of occurrences of a substring into a line.

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WAP to check the given string is palindrome or not.

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Python program to convert decimal into other number systems

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Write a Python program to show the application of Global variable.

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Write a Python program to create a function for factorial value

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Write program to find the sum of factorial upto n terms

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Write a python program to create a function which reverse the given number

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Write a Python program to input any number and check number is Palindrome or Not using Function

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Write a Python program to input any number from user and find its sum of digit

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Write a Python function to calculate the factorial value of given number using recursion.

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