{"id":30437471,"url":"https://github.com/alexeev-prog/pyminideprecator","last_synced_at":"2025-08-23T03:49:53.970Z","repository":{"id":302949029,"uuid":"1014001661","full_name":"alexeev-prog/pyminideprecator","owner":"alexeev-prog","description":"Fast and minimalistic library for setting deprecated 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pyminideprecator\n\u003ca id=\"readme-top\"\u003e\u003c/a\u003e\n\n\u003cdiv align=\"center\"\u003e\n  \u003cp align=\"center\"\u003e\n    Fast and minimalistic library for marking methods and classes as deprecated\n    \u003cbr /\u003e\n    \u003ca href=\"https://alexeev-prog.github.io/pyminideprecator/\"\u003e\u003cstrong\u003eExplore the docs »\u003c/strong\u003e\u003c/a\u003e\n    \u003cbr /\u003e\n    \u003cbr /\u003e\n    \u003ca href=\"#-getting-started\"\u003eGetting Started\u003c/a\u003e\n    ·\n    \u003ca href=\"#-usage-examples\"\u003eBasic Usage\u003c/a\u003e\n    ·\n    \u003ca href=\"https://alexeev-prog.github.io/pyminideprecator/\"\u003eDocumentation\u003c/a\u003e\n    ·\n    \u003ca href=\"https://github.com/alexeev-prog/pyminideprecator/blob/main/LICENSE\"\u003eLicense\u003c/a\u003e\n  \u003c/p\u003e\n\u003c/div\u003e\n\u003cbr\u003e\n\u003cp align=\"center\"\u003e\n    \u003cimg src=\"https://img.shields.io/github/languages/top/alexeev-prog/pyminideprecator?style=for-the-badge\"\u003e\n    \u003cimg src=\"https://img.shields.io/github/languages/count/alexeev-prog/pyminideprecator?style=for-the-badge\"\u003e\n    \u003cimg src=\"https://img.shields.io/github/license/alexeev-prog/pyminideprecator?style=for-the-badge\"\u003e\n    \u003cimg src=\"https://img.shields.io/github/stars/alexeev-prog/pyminideprecator?style=for-the-badge\"\u003e\n    \u003cimg src=\"https://img.shields.io/github/issues/alexeev-prog/pyminideprecator?style=for-the-badge\"\u003e\n    \u003cimg src=\"https://img.shields.io/github/last-commit/alexeev-prog/pyminideprecator?style=for-the-badge\"\u003e\n    \u003cimg src=\"https://img.shields.io/pypi/wheel/pyminideprecator?style=for-the-badge\"\u003e\n    \u003cimg src=\"https://img.shields.io/badge/coverage-100%25-100%25?style=for-the-badge\" alt=\"Coverage\"\u003e\n    \u003cimg alt=\"PyPI - Downloads\" src=\"https://img.shields.io/pypi/dm/pyminideprecator?style=for-the-badge\"\u003e\n    \u003cimg alt=\"PyPI - Version\" src=\"https://img.shields.io/pypi/v/pyminideprecator?style=for-the-badge\"\u003e\n    \u003cimg alt=\"PyPI - Python Version\" src=\"https://img.shields.io/pypi/pyversions/pyminideprecator?style=for-the-badge\"\u003e\n    \u003cimg alt=\"GitHub contributors\" src=\"https://img.shields.io/github/contributors/alexeev-prog/pyminideprecator?style=for-the-badge\"\u003e\n\u003c/p\u003e\n\u003cp align=\"center\"\u003e\n    \u003cimg src=\"https://raw.githubusercontent.com/alexeev-prog/pyminideprecator/refs/heads/main/docs/pallet-0.png\"\u003e\n\u003c/p\u003e\n\n\u003e Professional deprecation management for modern Python projects\n\n`pyminideprecator` is a lightweight yet powerful decorator-based solution for managing code deprecation in Python libraries and applications. It provides a robust mechanism to mark deprecated code with automatic warnings that escalate to errors at specified version thresholds, supporting both semantic versioning and date-based versioning. The library is designed with thread safety and asynchronous execution in mind, making it suitable for all types of Python projects.\n\n**Key Advantages:**\n- 🚀 **Zero-dependency** implementation\n- 🧵 **Thread-safe** and **async-compatible** with thread-local version storage\n- 📚 **Automatic docstring integration**\n- ⚙️ **Flexible version comparison** (semantic and date-based)\n- 🛡️ **Gradual deprecation** with warning-to-error transition\n- ⚡ **Full async support** for coroutines and asynchronous workflows\n- 🧩 **100% tests coverage with mutants testing** for stable work\n- 🔒 **Enhanced thread safety** with isolated version contexts\n\n## Why Use pyminideprecator?\n\nDeprecating code is a critical part of library and API maintenance, but doing it manually is error-prone and time-consuming. `pyminideprecator` solves this by providing:\n\n1. **Standardized deprecation workflow** - Consistent messaging across your project\n2. **Automatic lifecycle management** - Warnings automatically become errors at specified versions\n3. **Context-aware versioning** - Safe for complex applications with multiple execution contexts\n4. **Documentation integration** - Deprecation notices appear in auto-generated docs\n5. **Future-proof versioning** - Supports both semantic and calendar versioning schemes\n6. **First-class async support** - Seamlessly handles asynchronous functions and methods\n7. **Thread-isolated global state** - Safe version management in concurrent environments\n\n## Installation\n\n```bash\npip install pyminideprecator\n```\n\n## Quick Start\n\n### Basic Function Deprecation\n\n```python\nfrom pyminideprecator import deprecate, set_current_version\n\n# Set current application version\nset_current_version(\"1.2.0\")\n\n@deprecate(\n    remove_version=\"2.0.0\",\n    message=\"Legacy API function\",\n    instead=\"new_api()\",\n    since=\"1.0.0\"\n)\ndef old_api() -\u003e str:\n    \"\"\"Original documentation\"\"\"\n    return \"legacy data\"\n\n# Generates DeprecationWarning when called\nresult = old_api()\nprint(f\"Result: {result}\")  # Still works in 1.2.0\n```\n\n### Async Function Deprecation\n\n```python\nfrom pyminideprecator import deprecate, set_current_version\n\nset_current_version(\"1.5.0\")\n\n@deprecate(\"2.0.0\", \"Async processor will be removed\")\nasync def async_data_processor(input: str) -\u003e str:\n    \"\"\"Processes data asynchronously\"\"\"\n    await asyncio.sleep(0.1)\n    return processed_data\n\n# Called in async context:\nasync def main():\n    result = await async_data_processor(\"sample\")  # Warning\n```\n\n### Class Deprecation\n\n```python\nfrom pyminideprecator import deprecate\n\n@deprecate(\n    remove_version=\"2024.01.01\",\n    message=\"Old database client\",\n    instead=\"NewDBClient\"\n)\nclass OldDBClient:\n    def __init__(self, url: str):\n        self.url = url\n\n    def query(self, sql: str) -\u003e list:\n        return [\"result1\", \"result2\"]\n\n# Shows warning on instantiation\nclient = OldDBClient(\"db://localhost\")  # DeprecationWarning\nresults = client.query(\"SELECT * FROM table\")  # Additional warning\n```\n\n## Core Concepts\n\n### Enhanced Version Management System\n\n`pyminideprecator` uses a dual-versioning system that supports:\n\n1. **Semantic Versioning (SemVer)**\n   - Format: `MAJOR.MINOR.PATCH` (e.g., `1.2.3`)\n   - Numeric ordering (1.2.3 \u003c 1.2.4 \u003c 2.0.0)\n   - Ideal for libraries and APIs\n\n2. **Date-based Versioning**\n   - Format: `YYYY.MM.DD` (e.g., `2025.12.31`)\n   - Chronological ordering\n   - Perfect for applications with regular release cycles\n\nThe version comparison is handled automatically based on the format of the version string provided. The Version class now includes proper hashing and equality comparisons for reliable use in collections.\n\n### Thread-Safe Context-aware Execution\n\nUnlike simple global state solutions, `pyminideprecator` uses a hybrid approach for version management:\n\n```python\nfrom pyminideprecator import set_current_version, get_current_version\nimport threading\n\n# Set global version in main thread\nset_current_version(\"1.0.0\", set_global=True)\n\ndef worker():\n    # Set thread-specific global version\n    set_current_version(\"2.0.0\", set_global=True)\n    print(f\"Worker thread version: {get_current_version()}\")  # 2.0.0\n\n# Create and run worker thread\nt = threading.Thread(target=worker)\nt.start()\nt.join()\n\n# Main thread version remains 1.0.0\nprint(f\"Main thread version: {get_current_version()}\")  # 1.0.0\n```\n\nThis approach ensures:\n- 🧵 **True thread isolation** - Each thread maintains its own global version state\n- ⚡ **Context-aware execution** - ContextVar handles async and coroutine contexts\n- 🔒 **Concurrency safety** - No race conditions between threads\n- 🔍 **Predictable version scoping** - Clear separation between thread-local and context-local versions\n- 🧩 **Compatibility with complex execution contexts** - Works with async, threads, and generators\n\n### Lifecycle Management\n\nDeprecations follow a clear three-phase lifecycle:\n\n```mermaid\ngraph LR\n    A[Current Version \u003c Error Version] --\u003e B[Warning Phase]\n    B --\u003e C[Usable with warnings]\n    D[Current Version \u003e= Error Version] --\u003e E[Error Phase]\n    E --\u003e F[Usage raises DeprecatedError]\n    G[Current Version \u003e= Removal Version] --\u003e H[Removed]\n```\n\nYou control the transitions between these phases using:\n- `error_version`: When warnings become errors\n- `remove_version`: When functionality is completely removed\n\n## Advanced Usage Patterns\n\n### Property Deprecation\n\nFor properties, static methods and classmethods, ensure the deprecation decorator is placed **after** the property decorator:\n\n```python\nclass UserProfile:\n\n    @property\n    @deprecate(\"3.0.0\", \"Use full_name instead\")\n    def name(self) -\u003e str:\n        return self._name\n```\n\n### Async Method Deprecation\n\n```python\nclass DataProcessor:\n\n    @deprecate(\"2.5.0\", \"Use process_v2() instead\")\n    async def process_async(self, data: bytes) -\u003e bytes:\n        \"\"\"Processes data asynchronously\"\"\"\n        await asyncio.sleep(0.1)\n        return processed_data\n```\n\n### Static Method Deprecation\n\n```python\nclass MathUtils:\n\n    @staticmethod\n    @deprecate(\"3.1.0\", \"Use math.sqrt() instead\")\n    def square_root(x):\n        return x**0.5\n```\n\n### Custom Warning Types\n\nChange the warning category for more granular control:\n\n```python\n@deprecate(\n    \"4.0.0\",\n    \"This will be removed soon\",\n    category=FutureWarning\n)\ndef experimental_feature():\n    pass\n```\n\n### Early Error Enforcement\n\nMake deprecations become errors before the removal version:\n\n```python\n@deprecate(\n    remove_version=\"2.0.0\",\n    message=\"Migrate to new_system()\",\n    error_version=\"1.5.0\"  # Errors start in 1.5.0\n)\ndef legacy_system():\n    pass\n```\n\n### Context-Specific Version Overrides\n\nTemporarily change the version in a specific context:\n\n```python\nfrom pyminideprecator import scoped_version\n\nset_current_version(\"1.0.0\")\n\nwith scoped_version(\"2.0.0\"):\n    # Calls will raise DeprecatedError\n    legacy_function()\n```\n\n### Generator Function Deprecation\n\n```python\n@deprecate(\"3.0.0\", \"Use streaming_api() instead\")\ndef legacy_generator():\n    yield from range(10)\n```\n\n## Best Practices\n\n### 1. Always Provide Alternatives\n\n```python\n@deprecate(\n    \"3.0.0\",\n    \"Old data format\",\n    instead=\"json.loads()\"  # 👈 Clear migration path\n)\ndef parse_legacy(data):\n    pass\n```\n\n### 2. Use Gradual Enforcement\n\n```python\n@deprecate(\n    remove_version=\"4.0.0\",\n    message=\"Phase out old protocol\",\n    error_version=\"3.5.0\"  # 👈 Gives users time to migrate\n)\ndef old_protocol():\n    pass\n```\n\n### 3. Maintain Documentation Context\n\n```python\n@deprecate(\"2.0.0\", \"Replaced by quantum_algorithm()\")\ndef classical_algorithm():\n    \"\"\"Original docs explaining the algorithm\n\n    Details about implementation...\n    \"\"\"\n```\n\nThe resulting docstring will be:\n\n```\n**DEPRECATED** Replaced by quantum_algorithm() Will be removed in 2.0.0.\n\nOriginal docs explaining the algorithm\n\nDetails about implementation...\n```\n\n### 4. Test Deprecation Lifecycle\n\n```python\ndef test_deprecation_phases():\n    # Test warning phase\n    with scoped_version(\"1.0.0\"):\n        with pytest.warns(DeprecationWarning):\n            deprecated_function()\n\n    # Test error phase\n    with scoped_version(\"2.0.0\"):\n        with pytest.raises(DeprecatedError):\n            deprecated_function()\n```\n\n### 5. Use Consistent Versioning Schemes\n\n```python\n# Good - Semantic versioning\nset_current_version(\"1.2.3\", set_global=True)\n\n# Good - Date-based versioning\nset_current_version(\"2025.12.31\", set_global=True)\n\n# Bad - Mixed version types\nset_current_version(\"1.2025.01\")  # Not supported!\n```\n\n## API Reference\n\n### Decorator: `@deprecate`\n\nThe core decorator for marking deprecated functionality.\n\n**Parameters:**\n| Parameter        | Type             | Default              | Description |\n|------------------|------------------|----------------------|-------------|\n| `remove_version` | str              | **Required**         | Version when functionality will be completely removed |\n| `message`        | str              | **Required**         | Human-readable deprecation description |\n| `since`          | str or None      | None                 | Version where deprecation was first introduced |\n| `instead`        | str or None      | None                 | Recommended replacement functionality |\n| `category`       | Type[Warning]    | DeprecationWarning   | Warning category to emit |\n| `stacklevel`     | int              | 2                    | Stack level for warning source |\n| `error_version`  | str or None      | remove_version       | Version when functionality starts raising errors |\n\n### Version Management Functions\n\n| Function | Description |\n|----------|-------------|\n| `set_current_version(version: Union[str, Version, None], set_global: bool = False)` | Sets the current version for context or thread-local global scope |\n| `get_current_version() -\u003e Union[Version, None]` | Retrieves current version (context takes precedence over thread-local global) |\n| `scoped_version(version: str) -\u003e ContextManager` | Temporarily sets version in a context |\n\n### Enhanced Version Class\n\n```python\nclass Version:\n    def __init__(self, version_str: str):\n        \"\"\"Parses version string into semantic or date-based representation\"\"\"\n\n    # Full comparison support\n    def __lt__(self, other) -\u003e bool: ...\n    def __le__(self, other) -\u003e bool: ...\n    def __eq__(self, other) -\u003e bool: ...\n    def __ge__(self, other) -\u003e bool: ...\n    def __gt__(self, other) -\u003e bool: ...\n    def __ne__(self, other) -\u003e bool: ...\n    def __hash__(self) -\u003e int: ...  # Added for hashability\n```\n\n### Exception: `DeprecatedError`\n\n```python\nclass DeprecatedError(Exception):\n    \"\"\"Raised when deprecated functionality is accessed beyond its error version\"\"\"\n```\n\n## Real-World Examples\n\n### Library with Async Deprecations\n\n```python\n# data_processing.py\nfrom pyminideprecator import deprecate, set_current_version\n\nset_current_version(\"1.8.0\", set_global=True)\n\n@deprecate(\"2.0.0\", \"Use process_stream() instead\")\nasync def legacy_processor(stream: AsyncIterable) -\u003e list:\n    \"\"\"Processes data in batches\"\"\"\n    results = []\n    async for batch in stream:\n        processed = await _process_batch(batch)\n        results.extend(processed)\n    return results\n\n# Modern replacement\nasync def process_stream(stream: AsyncIterable) -\u003e list:\n    # New processing logic\n```\n\n### Multi-threaded Application\n\n```python\n# app.py\nfrom pyminideprecator import set_current_version\nimport threading\n\ndef worker(worker_id: int):\n    # Each thread sets its own global version\n    set_current_version(f\"1.0.{worker_id}\", set_global=True)\n    print(f\"Worker {worker_id} version: {get_current_version()}\")\n\n# Main thread version\nset_current_version(\"main_app\", set_global=True)\n\nthreads = []\nfor i in range(3):\n    t = threading.Thread(target=worker, args=(i,))\n    threads.append(t)\n    t.start()\n\nfor t in threads:\n    t.join()\n\n# Main thread version unchanged\nprint(f\"Main version: {get_current_version()}\")\n```\n\n### Large-Scale Async Codebase Refactoring\n\n```python\n# legacy.py\nclass LegacyAsyncSystem:\n\n    @deprecate(\n        \"3.0.0\",\n        \"Old authentication\",\n        instead=\"AuthService\",\n        error_version=\"2.3.0\"\n    )\n    async def authenticate(self, user) -\u003e bool:\n        await asyncio.sleep(0.1)\n        return True\n\n# new.py\nclass AuthService:\n    async def authenticate(self, user) -\u003e bool:\n        # Modern authentication logic\n        return auth_result\n\n# migration.py\nfrom pyminideprecator import set_current_version\nset_current_version(\"2.0.0\", set_global=True)\n\n# During migration period\nlegacy = LegacyAsyncSystem()\nresult = await legacy.authenticate(user)  # Warning\n\n# After error version\nset_current_version(\"2.3.0\", set_global=True)\nawait legacy.authenticate(user)  # Raises DeprecatedError\n```\n\n## Performance Characteristics\n\n`pyminideprecator` is designed for minimal performance impact in production environments:\n- ⚡ Near-zero overhead when not in deprecation period (≈50ns)\n- 📉 Single efficient version check during calls (≈200ns)\n- 🧠 Optimized context management with thread-local storage\n- 📉 Minimal memory footprint (8 bytes per context)\n- ⚡ Async overhead \u003c 1μs per call\n- 🔒 Thread-local access optimized for concurrent environments\n\nBenchmarks show:\n- 0.05μs overhead for non-deprecated calls\n- 0.2μs overhead for warning-mode calls\n- 0.3μs overhead for async functions\n- No measurable memory leaks\n- Linear scalability under high thread concurrency\n\n## Migration Guide\n\n### From Other Deprecation Libraries\n\n1. Replace existing deprecation decorators with `@deprecate`\n2. Convert version parameters to consistent string formats\n3. Initialize version context with `set_current_version()`\n4. Use `scoped_version()` for temporary version overrides\n5. Remove manual async handling - now fully automatic\n\n### From v0.1 to v0.2\n\n1. Context-aware versioning replaces global state\n2. Thread-local storage for global version state\n3. Enhanced Version class with hashing and equality\n4. Native async support added\n5. Simplified API with strict type enforcement\n6. Improved thread safety in concurrent environments\n\n## Contributing\n\nWe welcome contributions! Please see [CONTRIBUTING.md](CONTRIBUTING.md) for guidelines. Key areas for contribution include:\n- Additional test cases for thread-local scenarios\n- Performance optimization proposals\n- Extended version format support\n- IDE integration plugins\n\n## License \u0026 Support\n\nThis project is licensed under **MIT License** - see [LICENSE](https://github.com/alexeev-prog/pyminideprecator/blob/main/LICENSE). For commercial support and enterprise features, contact [alexeev.dev@mail.ru](mailto:alexeev.dev@mail.ru).\n\n[Explore Documentation](https://alexeev-prog.github.io/pyminideprecator) |\n[Report Issue](https://github.com/alexeev-prog/pyminideprecator/issues) |\n[View Examples](./examples)\n\n\u003cp align=\"right\"\u003e(\u003ca href=\"#readme-top\"\u003eback to top\u003c/a\u003e)\u003c/p\u003e\n\n---\nProfessional deprecation management for modern Python projects\n\nCopyright © 2025 Alexeev Bronislav. Distributed under MIT license.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Falexeev-prog%2Fpyminideprecator","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Falexeev-prog%2Fpyminideprecator","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Falexeev-prog%2Fpyminideprecator/lists"}