Blog

Python tutorials and tips on the Academify blog. Learn programming with examples, exercises, and projects from basic to advanced

Password Hashing with bcrypt in Python

Learn Python password hashing with bcrypt: generate secure hashes, verify passwords, understand salt, and build a complete authentication system.

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Reading time: 4 minutes

Python collections: Counter, deque, defaultdict

Learn Python's collections module: namedtuple, Counter, defaultdict, and deque for better performance and readability than built-in lists and dicts.

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Reading time: 4 minutes

Python dataclasses: Build Cleaner Data Classes

Learn how Python dataclasses work: auto-generate __init__, __repr__, __eq__, use default values, field(), frozen=True, __post_init__, and asdict/astuple.

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Reading time: 4 minutes

Error Resolution

FileNotFoundError: Fix Python Path Errors

Fix Python FileNotFoundError: understand absolute vs relative paths, use pathlib and os.getcwd(), handle errors with try/except, and build a reliable

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Reading time: 3 minutes

Error Resolution

Python UTF-8: Fix Encoding Errors

Fix Python UTF-8 encoding errors: always specify encoding when opening files, handle UnicodeDecodeError, auto-detect with chardet, and write a safe

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Reading time: 4 minutes

Python GIL: Threads, CPU, and Performance

Learn what Python's GIL is, why it exists, how it limits multithreading, and when to use multiprocessing to achieve true

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Reading time: 6 minutes

Excel with Python: Create and Edit with openpyxl

Learn how to generate and edit Excel files with Python using Pandas and Openpyxl: create spreadsheets, read data, add formulas,

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Reading time: 4 minutes

Convert Python to .exe with PyInstaller

Convert your Python script to .exe in 5 minutes using PyInstaller: virtual environment setup, single-file build, no-console flag, custom icon,

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Reading time: 5 minutes