Programming using Python — DU B. Voc – Software Development Previous Year Question Papers

(b) Give the output for the following given below print(7.00 / 2.0) (c) What are comments in Python? List two way: write a single-line comment. (d) Write a program that uses a function named to compute and return both the square and of a given number. (f) Write the purpose of the following pre-defined functions with an example. (iii) input( (3) 2. (a) Describe exception handling in Python, its significance, and demonstrate the functionality of try, except, finally, and else blocks using a comprehensive code example. (8) Python.txt file having data I Love Python. Python is great having embedded feature of M and AI. f = open("Python.txt") print(f.readline(100)) # output : f.seek(3) # output : 3. (a) Describe the fundamental principles of Objer Oriented Programming (OOP) with practic examples, and explain the purpose and significan of the init method in Python classes, including common use cases. (b) Compare and contrast for loops and while loops Python, providing atleast three differences w practical examples for each. Additionallydisc which type of loop is more efficient in wh scenarios given below: (i) Known sequence iteration (ii) Efficient for real-time conditions (ill) Unknown iterations (7) 4. (a) Explain the term with suitable examples (iii) global ct- (iv) Python is Dynamically Typed (8) (b) WAP for the given pattern below (7) 5 (a) Define what a function is in programming and demo[strate with a practical example how functions facilitate code reusability and support modular programming principles.Write a Python program that defines a function called test which takes a number as input and r€turns a string indicating whether the number is positive, negative, or zero. Test this fuoction with the specific values: -7, 0, and 7, and display the results for each. (8) (b) Explain the concept and importance of operators in Python and compare among identityand membership operatorsin Python. Also illustrate how oPeratol precedence and associativity affect the evaluation of exprossions by providing at least one exprbssion and showing its step-by-step evaluation' (7) (a) Given string NAME = "l LOVE PYTI{ON !!" (i) Court the no of spaces present in the suing. (ii) Replace the spaces with "#" character' (iii) Count the no of vowels present in the above string' (iv) Reverse the given string with the help of loops. (8) (b) Define what a diotionary is in ?ython with suitable example and an advantage of using it' Discuss two similarity features betweer set and dictionary with valid reason' Q) Give the output for the following: print(z.discard("aby")) print(z.remove("aby"))