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Explain to Dev

Empowering developers with the knowledge to build, create, and innovate in the software world.

Tag: Python

How to Implement a Custom Decorator That Accepts Arguments in Python

etd_admin, April 5, 2025April 5, 2025

Learn how to implement a custom decorator that accepts arguments in Python using a simple 3-layer function structure, complete with easy examples and code.

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How to Efficiently Find the Most Frequent Element in a List in Python

etd_admin, April 5, 2025April 5, 2025

Learn how to efficiently find the most frequent element in a list in Python using `collections.Counter` or a basic dictionary. Simple, fast, and easy to follow.

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How to Flatten a Nested List of Arbitrary Depth in Python

etd_admin, March 23, 2025March 23, 2025

Flatten a nested list of arbitrary depth in Python using recursion, iteration with a stack, or generators. Each method efficiently converts nested lists to flat lists.

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How to Reverse a String in Python Without Using Slicing or Built-in Functions

etd_admin, March 2, 2025March 2, 2025

Learn how to reverse a string in Python without using slicing or built-in functions by using a simple loop. Follow these easy methods with code examples!

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How to Remove Duplicate Elements from a List in Python While Preserving Order

etd_admin, March 2, 2025March 2, 2025

Learn how to remove duplicate elements from a list in Python while preserving order using `dict.fromkeys()`, a set with a loop, or pandas for large datasets.

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How to Merge Two Dictionaries Without Overwriting in Python

etd_admin, March 2, 2025March 2, 2025

Learn how to merge two dictionaries without overwriting in Python using `setdefault()`, dictionary comprehension, and `ChainMap` to preserve existing values.

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How to Implement a Sudoku Solver Using Backtracking in Python

etd_admin, December 15, 2024December 15, 2024

Learn how to implement a Sudoku solver using backtracking in Python. Follow simple steps, explore recursion, and use provided code to solve any Sudoku puzzle easily.

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How to Parse and Evaluate Mathematical Expressions in Python

etd_admin, December 15, 2024December 15, 2024

Parsing and evaluating mathematical expressions in Python involves using eval(), the ast module, or libraries like sympy for secure and efficient computations.

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How to Design a System for Tracking Stock Prices and Sending Alerts When Thresholds Are Crossed in Python

etd_admin, December 13, 2024December 13, 2024

Learn how to track stock prices and send alerts when thresholds are crossed in Python using APIs, threshold logic, and email notifications with automated scheduling.

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How to Process and Visualize Data from a CSV in Python

etd_admin, December 13, 2024December 13, 2024

Learn how to process and visualize data from a CSV in Python using Pandas and Matplotlib. Clean, analyze, and create stunning charts with simple code examples.

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The Most Efficient Way to Merge Two Sorted Lists in Python Without External Libraries

etd_admin, November 23, 2024November 23, 2024

Learn how to efficiently merge two sorted lists in Python using the two-pointer technique, with step-by-step explanations and code examples for optimal performance.

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How to Import Modules in Python Based on User Input and Ensure Safe Execution

etd_admin, November 23, 2024November 23, 2024

Learn how to safely import modules in Python based on user input using importlib, whitelists, and input validation, with practical examples and code snippets.

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