This repository contains three Python files that implement utility functions for common tasks:
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remove_duplicates.py: This file contains a Python function that removes duplicate elements from a sequence (list or tuple) while preserving the original order of elements. It includes a test case to demonstrate its usage. -
stacks.py: This file contains a Python function that checks if a given expression containing parentheses, curly braces, and square brackets is balanced (i.e., if each opening bracket has a corresponding closing bracket in the correct order). It also includes test cases to verify its correctness. -
word_frequency.py: This file contains a Python function that calculates the frequency of each word in a sentence. It ignores punctuation and considers words in a case-insensitive manner. A test case is provided to showcase its functionality.
You can use these utility functions in your Python projects by importing them as modules. Here's an example of how to use each function:
from remove_duplicates import remove_duplicates
input_sequence = [2, 3, 2, 4, 5, 3, 6, 7, 5]
result = remove_duplicates(input_sequence)
print(result) # Output: [2, 3, 4, 5, 6, 7]from is_balanced import is_balanced
expression1 = "([]{})"
expression2 = "([)]"
print(is_balanced(expression1)) # Output: True
print(is_balanced(expression2)) # Output: Falsefrom word_frequency import word_frequency
sentence = "This is a test sentence. This sentence is a test."
result = word_frequency(sentence)
print(result)This project is licensed under MIT License.