RDRYUSLOG DEV

Browse by Topic

All 3599C# 756General 3Java 1072Python 1768

Popular

Popular Posts

Illustration of a Python list being converted into a single iterator block by the iter() built-in, with a one-way arrow showing single-pass iteration.
Python

Python iter(): How the Built-in Function Works

Illustration of Python pika connecting to RabbitMQ with queues, exchanges, and routing keys, emphasizing message acknowledgement flow.
Python

Python Pika: Queues, Exchanges, Routing Keys, and Acknowledgements

Comparison of two Python Kafka client libraries with code snippets and a scale icon.
Python

Python Kafka: kafka-python vs Confluent Client

Illustration of Kafka partition offsets and manual commit flow in a Python consumer
Python

Python Kafka Offsets, Partitions, and Manual Commits

Latest

Latest Python Posts

Illustration of a Python Pillow script drawing text and shapes onto an image, with a semi-transparent watermark overlay.
Python

Python Pillow: Draw Text, Shapes, and Watermarks

Use Python Pillow's ImageDraw module to draw text and shapes and create semi-transparent watermarks. Includes practical code examples.

PillowImageDrawwatermarkingimage processing
A visual comparison of a high-quality image and a compressed thumbnail, with a Pillow logo and a file size gauge.
Python

Pillow Compression Quality and Thumbnails in Python

python pillow compression quality and thumbnails: Learn how to control JPEG quality, use the optimize flag, and generate thumbnails with Pillow while balancing file si...

PillowImage CompressionThumbnailsJPEG Quality
Illustration of converting image formats between JPG, PNG, and WebP using Python Pillow
Python

Convert JPG, PNG, and WebP with Python Pillow

Convert JPG, PNG, and WebP images with Python Pillow. Covers save options, transparency handling, metadata preservation, batch conversion, and choosing the right output format.

PythonPillowImage ConversionWebP
A thumbnail showing a Pillow image being resized and cropped, with coordinate boxes and rotation arrows.
Python

Python Pillow: Open, Save, Resize, Crop, and Rotate Images

Learn how to open, save, resize, crop, and rotate images with Python Pillow. Covers core Image methods, EXIF orientation, and common pitfalls.

PillowImage ProcessingPython ImagingPIL
Diagram comparing DuckDB, pandas, and polars execution models for Python data processing
Python

python duckdb vs pandas vs polars: How to Choose

Compare python duckdb vs pandas vs polars by execution model, memory behavior, and API design to choose the right tool for your data workload.

duckdbpandaspolarsdataframes
Illustration comparing DuckDB and SQLite as two embedded database options for Python, with columnar and row-oriented storage layouts.
Python

Python DuckDB vs SQLite: Which Embedded Database to Use

Compare DuckDB and SQLite for Python: storage layout, query performance, data types, concurrency, and external data support to choose the right embedded database.

DuckDBSQLiteembedded databasesdata analysis
Illustration of a Python dataframe being registered into a DuckDB database for SQL querying.
Python

Python DuckDB Register Dataframe: Syntax and Examples

Learn how to register a Pandas or Polars dataframe in DuckDB with Python for SQL querying, including syntax, how the registration behaves, and performance tradeoffs.

DuckDBPandasDataframeSQL
A diagram showing multiple data tables being joined and aggregated inside a DuckDB engine connected to Python.
Python

Python DuckDB: SQL Joins, Aggregation, and Analytics

Learn how to use DuckDB's SQL engine in Python for joins, GROUP BY aggregations, FILTER clauses, window functions, and parameterized analytical queries.

DuckDBSQLData AnalysisPandas
Illustration of Python code connecting to both an in-memory DuckDB instance and a persistent DuckDB file on disk, showing the two modes side by side.
Python

Python DuckDB: In-Memory and Persistent Databases

Learn how to create and use DuckDB in-memory and persistent databases in Python, including connection setup, behavioral differences, and how to choose the right mode.

DuckDBIn-Memory DatabasePersistent DatabasePython SQL
Illustration of DuckDB connecting pandas and Polars DataFrames through an Arrow-based interchange layer.
Python

Integrating DuckDB with pandas and Polars in Python

Use DuckDB SQL to query pandas and Polars DataFrames directly, join across both engines, and move data between formats without unnecessary copies.

duckdbpandaspolarspython