Send Email with Python, smtplib, and email
Build an SMTP sender with text and HTML alternatives, bounded attachments, STARTTLS, environment configuration, validation, and clear errors.
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12 articles on this pageManipulate PDFs with Python and pypdf
A practical pypdf automation guide covering merging, splitting, rotation, metadata, text extraction limits, encryption, and errors.
Python Argparse: Build a CLI with Subcommands
Build an installable task-management CLI using positional arguments, options, subcommands, entry points, and automated tests.
Python Pandera: Practical DataFrame Validation
Validate DataFrame columns, types, and business rules with Pandera while building and testing a small sales pipeline.
scikit-learn Pipelines: ColumnTransformer and CV
Combine preprocessing and a model in a scikit-learn Pipeline, validate it correctly, and keep test information out of training.
DuckDB with Python: Query CSV, Parquet, and DataFrames
Query CSV, Parquet, and in-memory DataFrames with SQL through DuckDB and Python, without operating a database server.
Polars in Python: DataFrames, Lazy API, and Pandas
Use Polars expressions and lazy execution for clear DataFrame pipelines, while understanding when to compare, combine, or stay with Pandas.
Python API Security with OWASP: Practical Guide
A defensive plan for Python APIs covering identity, object permissions, trustworthy input, CORS, limits, secrets, and observability without leaks.
Python WSGI vs ASGI: Differences and How to Choose
Understand WSGI and ASGI, compare their concurrency models, and choose the right interface and server for APIs, Django, streaming, and WebSockets.
Python Celery: Reliable Background Tasks with Redis
Configure Celery with Redis and build resilient Python background tasks using retries, idempotency, time limits, dedicated queues, and observability.
Django REST Framework: Build a Complete API
Build a task API with Django REST Framework, validation, authentication, permissions, pagination, and automated tests.
Python Unicode, Bytes, and UTF-8: Practical Guide
A practical guide to separating text from bytes, using UTF-8 correctly, and diagnosing encoding failures in files, APIs, and databases.