Text Processing

5 Best Ways to Edit Large Text Files in Windows

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💾 Problem Formulation: Editing very large (huge!, giant!!, massive!!!) text files, XML files, or CSV files (e.g., sizes ranging from 100 GB to 250 GB) on Windows is problematic with standard editors like Notepad, as they often crash or become unresponsive due to their inability to efficiently handle massive data loads. This necessitates the use … Read more

Python: Read Text File into List of Words

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✅ Problem Formulation: When working with file input/output in Python, one common requirement is to read a text file and store its contents as a list of words. This could be needed for tasks such as word frequency analysis, text processing, or simply pre-processing for other computational tasks. For example, given an input file containing … Read more

Python Filter List of Strings Startswith

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💡 Problem Formulation: When working with lists of strings in Python, a common task is to filter the list based on whether the strings start with a specific prefix. Suppose you have a list of names, and you want to retrieve only those that start with the letter “J”. Below are several methods to accomplish … Read more

5 Ways to Filter a List of Strings Based on a Regex Pattern in Python

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💡 Problem Formulation: When working with a list of strings in Python, a common task is to filter the list based on specific patterns. Regular Expressions (regex) are a powerful way of defining these patterns, enabling complex matching criteria that can go well beyond simple substring checks. Let’s see how we can use regex to … Read more

5 Best Ways to Count the Number of Specific Chars in a Python String

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When working with text in Python, a common task is to determine how often a specific character or set of characters occurs within a string. This can be useful in various applications such as data preprocessing, parsing, or simply assessing the content of a string. 💡 Problem Formulation: The task is to write a Python … Read more

How to Count a Specific Word in a Text File in Python?

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Problem Formulation 💡 Problem Formulation: The goal is to determine how many times a word appears throughout the text. Given: Goal: Example: Consider the text file example.txt with the following content: 💾 example.txt Python is an interpreted, high-level and general-purpose programming language. Python’s design philosophy emphasizes code readability with its notable use of significant whitespace. … Read more

Best 5 Ways to Read a Text File into a List of Numbers in Python

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In this article, we’ll explore how to read numbers from a text file and store them as lists of integers, suitable for applications like coordinate manipulation, using Python. Problem Formulation 💡 Goal: Transform textual representations of numbers in a text file into a Python list, where each line becomes a sublist of integers. Example input … Read more

How Do You Add Text to a File in Windows PowerShell?

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To add text to a file using PowerShell, you can use the Add-Content cmdlet, which appends content to a specified item or file. Content can be specified using the Value parameter. Example: Add-Content -Path “C:\path\to\your\file.txt” -Value “Text to add” Here’s a basic example of how to use Add-Content: This command will append “Text to add” … Read more

OpenAI Text to Speech (TTS): Minimal Example in Python

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To use OpenAI’s amazing Text-to-Speech (TTS) functionality, first install the openai Python library and obtain an API key from OpenAI. Instantiate an OpenAI client with openai.OpenAI(api_key). Call client.audio.speech.create(model=’tts_1′, voice=’alloy’, input=your_text) to use the ‘alloy’ voice model. This generates speech you can save as an MP3 file using response.stream_to_file(‘your_file.mp3’). First, install the OpenAI library and set … Read more