IITM BS Week 9 Programming in Python Questions

01

Consider the following snippet of code: ``` filename = "test.txt" with open(filename, "w") as f: f.write("\n".join([f"line{i}" for i in range(1, 11)])) with open(filename, "r") as f: f.readline() f.readline() print(f.read(5)) f.readline() print(f.read(10)) f.seek(0) print(f.read(5)) f.readline() print(f.read(5)) ``` Select all that apply. Note - If a value is passed to f.read, it reads that many number of characters from the current position of the file pointer. - The f.seek method moves the position of the file pointer to the given number of chars after the start of the file.

Multiple correct

HARD

3 marks

10 May 2026

02

Consider the following snippet of code: select all that apply. ``` filename = "test.txt" with open(filename, "w") as f: f.write("\n".join(["Line{}".format(i) for i in range(1, 11)])) with open(filename, "r") as f: f.readline() f.readline() print(f.readline()) print(f.read(5)) f.seek(0) print(f.read(5)) f.readline() print(f.read(5)) ```

Multiple correct

HARD

3 marks

31 August 2025

03

On executing the given code, how many number of lines will be there in the file example_file.txt ? Enter an integer as your answer.

Comprehension

HARD

2 marks

31 August 2025

04

What will be printed if we call random_access_read(filename, seek_pos) immediately after running the given code?

Comprehension

HARD

2 marks

31 August 2025

05

What will be the output of the following program when "test.txt" contains: Hello world Python is great File handling is useful Consider the following code snippet: ``` with open("test.txt", "w") as file: file.write("New Line1\n") file.write("New Line2\n") with open("test.txt", "r") as file: print(len(file.readlines())) ```

Single correct

MEDIUM

3 marks

13 April 2025

06

Consider the following Python code snippet: How many lines will be present in the file sample.txt after executing the above code? ``` f = open('sample.txt', 'w') f.write('alpha\n') f.write('beta') f.write('\ngamma\ndelta') f.write('\nepisilon') f.close() ```

Numerical

MEDIUM

3 marks

13 April 2025

07

Consider the following Python code snippet which writes to a file. ``` lines = ["First line\n", "Second line\n", "Third line\n"] file = open('text_file.txt', 'w') file.writelines(lines) file.close() new_lines = ["New first line\n", "New second line\n"] file = open('text_file.txt', 'w') file.write(new_lines[0].strip()) file.close() file = open('text_file.txt', 'r') content = file.readlines() file.close() for data in content: print(data) ```

Single correct

EASY

3 marks

22 December 2024

08

Consider the file `countries.txt` given below, also consider the python file both in the same directory. What will be the output of the code below? File `countries.txt`: IND-New Delhi-+91 USA-Washington D.C.-+1 RU-Moscow-+7 CHN-Beijing-+86 BR-Brasilia-+55 The separator used in `countries.txt` is `-` which is same as the one used in `.split()` method in python code. Code Snippet file_path = "countries.txt" file = open(file_path, "r") ``` file_path = "countries.txt" file = open(file_path, "r") for line in file: modified_line = line.strip() modified_line = modified_line.split('-') print(modified_line[0], "|", modified_line[2]) file.close() ```

Single correct

MEDIUM

3 marks

01 September 2024

09

Consider the code given below. What is the content present in the file output.txt after the execution of the code? f = open('output.txt', 'w') f.write('apple') f.write('banana') f.write('cat') f.write('dog') f.write('elephant') f.close()

Single correct

EASY

3 marks

28 April 2024

10

Consider the following code snippet that writes student details to a CSV file named 'scores.csv': ``` def write_to_file(L): f = open('scores.csv', 'w') f.write('Name,Python\n') for i in range(len(L)): name, marks = L[i] line = f"{name},{marks}" if i != len(L) - 1: line = line + '\n' f.write(line) f.close() L = [('John', 90), ('Jane', 85), ('Michael', 92), ('sarah', 88), ('David', 95)] ``` If the write_to_file(L) function is called with the list L as shown above, what will be the contents of the file 'scores.csv'? Select the correct option that represents the contents of the 'scores.csv' file after calling the write_to_file(L) function with the provided list L.

Single correct

MEDIUM

3 marks

03 September 2023

11

Select the correct implementation of a program that creates a text file named pattern.txt with the following contents:

Single correct

MEDIUM

3 marks

30 April 2023

12

What are the contents of the file greek.txt created by the following snippet of code? ``` f = open('greek.txt', 'w') f.write('alpha') f.write('beta') f.write('gamma') f.write('delta') f.write('theta') f.close() ```

Single correct

EASY

3 marks

11 December 2022

13

What are the contents of the file greek.txt created by the following snippet of code? ``` f = open('greek.txt', 'w') f.write('alpha') f.write('beta') f.write('gamma') f.write('delta') f.write('theta') f.close() ```

Single correct

EASY

3 marks

07 August 2022

14

Consider the following text file names.txt: ``` atul bhaskar dhanya omkar ram karthik subhajit mayur nitin nikita ``` What is the output of the following snippet of code? ``` fh = open('names.txt', 'r') count = 0 for line in fh: name = line.strip() if len(name) < 6: count += 1 fh.close() print(count) ```

Numerical

EASY

3 marks

07 August 2022

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