beginner
17 min read
Build a Simple Log Analyzer with Python
Somewhere on a server, a program is keeping a diary. Every few seconds it writes a line about what just happened: a user logged in, a request completed, a…
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Data Processing
Transforming, validating, organizing, aggregating, or summarizing data to produce a useful result.
Tagged articles
Data Processing articles
8 articles in this tag.
beginner
11 min read
How to Clean CSV Data with Python
Every spreadsheet person knows the feeling. You export a CSV file, open it, and find blank rows scattered through the data. Names written three different…
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beginner
11 min read
How to Count Words in Python
Counting words in Python sounds trivial until you try it on real text. The moment your sentence contains a comma, a capital letter, or an ellipsis, the…
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beginner
11 min read
How to Generate a Text Report with Python
You have data. Someone else needs to understand it. The fastest bridge between the two is a plain text report—a file you can email, save, or hand to a…
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beginner
9 min read
List Comprehensions for Beginners
A list comprehension is a compact way to build a new list by transforming or filtering an existing one. It is not a replacement for every loop—it is a tool…
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beginner
8 min read
Practice Exercises: Files and Data
Reading about file handling is easy. Writing code that actually reads a file, transforms its data, and writes something new back to disk is where the skill…
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beginner
11 min read
Build a Simple Data Project in Python
The fastest way to make Python feel real is to build something small that collects data, organizes it, saves it to a file, and reads it back. In this…
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beginner
10 min read
Sorting and Filtering Data in Python
You have a list of numbers that needs to be in order. Or a dictionary of products where you only want the ones under a certain price. Every real Python…
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