NumPy Library NumPy is an open-source Python library for numerical computations. It stands for “Numerical Python.” NumPy provides support for large, multi-dimensional arrays and matrices, along with a collection of mathematical functions to operate on these arrays efficiently. It is a fundamental library for data science and scientific computing in Python. Key features of NumPy …
Pandas Library Pandas is an open-source Python library that provides powerful and flexible data structures and data analysis tools. It is widely used in data manipulation, data cleaning, data transformation, and data analysis tasks. The name “Pandas” is derived from “Panel Data,” which refers to multi-dimensional structured data. Key features of Pandas: DataFrame: The DataFrame …
M.Sc Python Programming Assignments Assignment 31 Question: Write a Python class named Circle constructed by a radius and two methods which will compute the area and the perimeter of a circle Code: import math class Circle: def __init__(self, radius): self.radius = radius def compute_area(self): return math.pi * self.radius ** 2 def compute_perimeter(self): return 2 * …
M.Sc Python Programming Assignments Assignment 30 Question: Write a Python class named Rectangle constructed by a length and width and a method which will compute the area and perimeter of a rectangle. Code: class Rectangle: def __init__(self, length, width): self.length = length self.width = width def compute_area(self): return self.length * self.width def compute_perimeter(self): return 2 …
M.Sc Python Programming Assignments Assignment 29 Question: Write a Python class to reverse a string word by word. Input string : ‘hello.py’ Expected Output : ‘.py hello’ Code: class StringReverser: def reverse_words(self, input_string): words = input_string.split() reversed_string = ‘ ‘.join(reversed(words)) return reversed_string # Example usage input_string = input(“Enter a string: “) reverser = StringReverser() reversed_string …
M.Sc Python Programming Assignments Assignment 28 Question: Write a Python program to read a random line from a file Code: import random def read_random_line(file_name): with open(file_name, ‘r’) as file: lines = file.readlines() random_line = random.choice(lines) return random_line.strip() # Example usage file_name = input(“Enter the file name: “) random_line = read_random_line(file_name) print(“Random line from the file:”) …
CRUD Operations with Django In Django, CRUD (Create, Read, Update, Delete) operations are used to interact with the database and perform various data manipulation tasks. Django’s built-in ORM (Object-Relational Mapping) provides a convenient way to handle these operations. Here’s a step-by-step guide on how to use CRUD operations with Django: Assuming you have already set …
M.Sc Python Programming Assignments Assignment 27 Question: Write a Python program to copy the contents of a file to another file Code: def copy_file(source_file, destination_file): with open(source_file, ‘r’) as source: with open(destination_file, ‘w’) as destination: for line in source: destination.write(line) print(“File copied successfully!”) # Example usage source_file = input(“Enter the source file name: “) destination_file …
M.Sc Python Programming Assignments Assignment 26 Question: Write a Python program to count the frequency of words in a file Code: def count_word_frequency(file_name): word_frequency = {} with open(file_name, ‘r’) as file: for line in file: words = line.strip().split() for word in words: if word in word_frequency: word_frequency[word] += 1 else: word_frequency[word] = 1 return word_frequency …
M.Sc Python Programming Assignments Assignment 25 Question: Write a Python program to count the number of lines in a text file Code: def count_file_lines(file_name): line_count = 0 with open(file_name, ‘r’) as file: for line in file: line_count += 1 return line_count # Example usage file_name = input(“Enter the file name: “) line_count = count_file_lines(file_name) print(“Number …
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