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Modern Python logging library for production applications - async-native, structured logging, zero-config, cloud-ready with AWS/Azure/GCP integration, context propagation, and performance optimization

Project description

MickTrace - Python Logging Library

Python Version PyPI Version License Downloads GitHub Stars

Modern Python logging library designed for production applications and libraries. Built with async-first architecture, structured logging, and zero-configuration philosophy.

Created by Ajay Agrawal | LinkedIn


🚀 Why Choose MickTrace?

For Production Applications

  • Zero Configuration Required - Works out of the box, configure when needed
  • Async-Native Performance - Sub-microsecond overhead when logging disabled
  • Structured by Default - JSON, logfmt, and custom formats built-in
  • Cloud-Ready - Native AWS, Azure, GCP integrations with graceful fallbacks
  • Memory Safe - No memory leaks, proper cleanup, production-tested

For Library Developers

  • Library-First Design - No global state pollution, safe for libraries
  • Zero Dependencies - Core functionality requires no external packages
  • Type Safety - Full type hints, mypy compatible, excellent IDE support
  • Backwards Compatible - Drop-in replacement for standard logging

For Development Teams

  • Context Propagation - Automatic request/trace context across async boundaries
  • Hot Reloading - Change log levels and formats without restart
  • Rich Console Output - Beautiful, readable logs during development
  • Comprehensive Testing - 200+ tests ensure reliability

📦 Installation

Basic Installation

pip install micktrace

Cloud Platform Integration

# AWS CloudWatch
pip install micktrace[aws]

# Azure Monitor  
pip install micktrace[azure]

# Google Cloud Logging
pip install micktrace[gcp]

# All cloud platforms
pip install micktrace[cloud]

Analytics & Monitoring

# Datadog integration
pip install micktrace[datadog]

# New Relic integration
pip install micktrace[newrelic]

# Elastic Stack integration
pip install micktrace[elastic]

# All analytics tools
pip install micktrace[analytics]

Development & Performance

# Rich console output
pip install micktrace[rich]

# Performance monitoring
pip install micktrace[performance]

# OpenTelemetry integration
pip install micktrace[opentelemetry]

# Everything included
pip install micktrace[all]

⚡ Quick Start

Instant Logging (Zero Config)

import micktrace

logger = micktrace.get_logger(__name__)
logger.info("Application started", version="1.0.0", env="production")

Structured Logging

import micktrace

logger = micktrace.get_logger("api")

# Automatic structured output
logger.info("User login", 
           user_id=12345, 
           email="user@example.com",
           ip_address="192.168.1.1",
           success=True)

Async Context Propagation

import asyncio
import micktrace

async def handle_request():
    async with micktrace.acontext(request_id="req_123", user_id=456):
        logger = micktrace.get_logger("handler")
        logger.info("Processing request")
        
        await process_data()  # Context automatically propagated
        
        logger.info("Request completed")

async def process_data():
    logger = micktrace.get_logger("processor")
    logger.info("Processing data")  # Includes request_id and user_id automatically

Application Configuration

import micktrace

# Configure for your application
micktrace.configure(
    level="INFO",
    format="json",
    service="my-app",
    version="1.0.0",
    environment="production",
    handlers=[
        {"type": "console"},
        {"type": "file", "config": {"path": "app.log"}},
        {"type": "cloudwatch", "config": {"log_group": "my-app"}}
    ]
)

🌟 Key Features

🔥 Performance Optimized

  • Sub-microsecond overhead when logging disabled
  • Async-native architecture - no blocking operations
  • Memory efficient - automatic cleanup and bounded memory usage
  • Hot-path optimized - critical paths designed for speed

🏗️ Production Ready

  • Zero global state - safe for libraries and applications
  • Graceful degradation - continues working even when components fail
  • Thread and async safe - proper synchronization throughout
  • Comprehensive error handling - never crashes your application

📊 Structured Logging

  • JSON output - machine-readable logs for analysis
  • Logfmt support - human-readable structured format
  • Custom formatters - extend with your own formats
  • Automatic serialization - handles complex Python objects

🌐 Cloud Native

  • AWS CloudWatch - native integration with batching and retry
  • Azure Monitor - structured logging to Azure
  • Google Cloud Logging - GCP-native structured logs
  • Kubernetes ready - proper JSON output for container environments

🔄 Context Management

  • Request tracing - automatic correlation IDs
  • Async propagation - context flows across await boundaries
  • Bound loggers - attach permanent context to loggers
  • Dynamic context - runtime context injection

⚙️ Developer Experience

  • Zero configuration - works immediately out of the box
  • Hot reloading - change configuration without restart
  • Rich console - beautiful development output
  • Full type hints - excellent IDE support and error detection

🏢 Cloud Platform Integration

AWS CloudWatch

import micktrace

micktrace.configure(
    level="INFO",
    handlers=[{
        "type": "cloudwatch",
        "log_group_name": "my-application",
        "log_stream_name": "production",
        "region": "us-east-1"
    }]
)

logger = micktrace.get_logger(__name__)
logger.info("Lambda function executed", duration_ms=150, memory_used=64)

Azure Monitor

import micktrace

micktrace.configure(
    level="INFO", 
    handlers=[{
        "type": "azure",
        "connection_string": "InstrumentationKey=your-key"
    }]
)

logger = micktrace.get_logger(__name__)
logger.info("Azure function completed", execution_time=200)

Google Cloud Logging

import micktrace

micktrace.configure(
    level="INFO",
    handlers=[{
        "type": "stackdriver",
        "project_id": "my-gcp-project",
        "log_name": "my-app-log"
    }]
)

logger = micktrace.get_logger(__name__)
logger.info("GCP service call", service="storage", operation="upload")

Multi-Platform Setup

import micktrace

micktrace.configure(
    level="INFO",
    handlers=[
        {"type": "console"},  # Development
        {"type": "cloudwatch", "config": {"log_group": "prod-logs"}},  # AWS
        {"type": "azure", "config": {"connection_string": "..."}},     # Azure
        {"type": "file", "config": {"path": "/var/log/app.log"}}       # Local
    ]
)

📈 Analytics & Monitoring Integration

Datadog Integration

import micktrace

micktrace.configure(
    level="INFO",
    handlers=[{
        "type": "datadog",
        "api_key": "your-api-key",
        "service": "my-service", 
        "env": "production"
    }]
)

logger = micktrace.get_logger(__name__)
logger.info("Payment processed", amount=100.0, currency="USD", customer_id=12345)

New Relic Integration

import micktrace

micktrace.configure(
    level="INFO",
    handlers=[{
        "type": "newrelic",
        "license_key": "your-license-key",
        "app_name": "my-application"
    }]
)

logger = micktrace.get_logger(__name__)
logger.info("Database query", table="users", duration_ms=45, rows_returned=150)

Elastic Stack Integration

import micktrace

micktrace.configure(
    level="INFO",
    handlers=[{
        "type": "elasticsearch",
        "hosts": ["localhost:9200"],
        "index": "application-logs"
    }]
)

logger = micktrace.get_logger(__name__)
logger.info("Search query", query="python logging", results=1250, response_time_ms=23)

🎯 Use Cases

Web Applications

import micktrace
from flask import Flask, request

app = Flask(__name__)

# Configure structured logging
micktrace.configure(
    level="INFO",
    format="json",
    service="web-api",
    handlers=[{"type": "console"}, {"type": "file", "config": {"path": "api.log"}}]
)

@app.route("/api/users", methods=["POST"])
def create_user():
    with micktrace.context(
        request_id=request.headers.get("X-Request-ID"),
        endpoint="/api/users",
        method="POST"
    ):
        logger = micktrace.get_logger("api")
        logger.info("User creation started")
        
        # Your business logic here
        user_id = create_user_in_db()
        
        logger.info("User created successfully", user_id=user_id)
        return {"user_id": user_id}

Microservices

import micktrace
import asyncio

# Service A
async def service_a_handler(trace_id: str):
    async with micktrace.acontext(trace_id=trace_id, service="service-a"):
        logger = micktrace.get_logger("service-a")
        logger.info("Processing request in service A")
        
        # Call service B
        result = await call_service_b(trace_id)
        
        logger.info("Service A completed", result=result)
        return result

# Service B  
async def service_b_handler(trace_id: str):
    async with micktrace.acontext(trace_id=trace_id, service="service-b"):
        logger = micktrace.get_logger("service-b")
        logger.info("Processing request in service B")
        
        # Business logic
        await process_data()
        
        logger.info("Service B completed")
        return "success"

Data Processing

import micktrace

logger = micktrace.get_logger("data-processor")

def process_batch(batch_id: str, items: list):
    with micktrace.context(batch_id=batch_id, batch_size=len(items)):
        logger.info("Batch processing started")
        
        processed = 0
        failed = 0
        
        for item in items:
            item_logger = logger.bind(item_id=item["id"])
            try:
                process_item(item)
                item_logger.info("Item processed successfully")
                processed += 1
            except Exception as e:
                item_logger.error("Item processing failed", error=str(e))
                failed += 1
        
        logger.info("Batch processing completed", 
                   processed=processed, 
                   failed=failed,
                   success_rate=processed/len(items))

Library Development

# Your library code
import micktrace

class MyLibrary:
    def __init__(self):
        # Library gets its own logger - no global state pollution
        self.logger = micktrace.get_logger("my_library")
    
    def process_data(self, data):
        self.logger.debug("Processing data", data_size=len(data))
        
        # Your processing logic
        result = self._internal_process(data)
        
        self.logger.info("Data processed successfully", 
                        input_size=len(data),
                        output_size=len(result))
        return result
    
    def _internal_process(self, data):
        # Library logging works regardless of application configuration
        self.logger.debug("Internal processing step")
        return data.upper()

# Application using your library
import micktrace
from my_library import MyLibrary

# Application configures logging
micktrace.configure(level="INFO", format="json")

# Library logging automatically follows application configuration
lib = MyLibrary()
result = lib.process_data("hello world")

🔧 Advanced Configuration

Environment-Based Configuration

import os
import micktrace

# Automatic environment variable support
os.environ["MICKTRACE_LEVEL"] = "DEBUG"
os.environ["MICKTRACE_FORMAT"] = "json"

# Configuration picks up environment variables automatically
micktrace.configure(
    service=os.getenv("SERVICE_NAME", "my-app"),
    environment=os.getenv("ENVIRONMENT", "development")
)

Dynamic Configuration

import micktrace

# Hot-reload configuration without restart
def update_log_level(new_level: str):
    micktrace.configure(level=new_level)
    logger = micktrace.get_logger("config")
    logger.info("Log level updated", new_level=new_level)

# Change configuration at runtime
update_log_level("DEBUG")  # Now debug logs will appear
update_log_level("ERROR")  # Now only errors will appear

Custom Formatters

import micktrace
from micktrace.formatters import Formatter

class CustomFormatter(Formatter):
    def format(self, record):
        return f"[{record.level.name}] {record.timestamp} | {record.message} | {record.data}"

micktrace.configure(
    level="INFO",
    handlers=[{
        "type": "console",
        "formatter": CustomFormatter()
    }]
)

Filtering and Sampling

import micktrace

# Sample only 10% of debug logs to reduce volume
micktrace.configure(
    level="DEBUG",
    handlers=[{
        "type": "console",
        "filters": [
            {"type": "level", "level": "INFO"},  # Only INFO and above
            {"type": "sample", "rate": 0.1}     # Sample 10% of logs
        ]
    }]
)

🧪 Testing and Development

Testing Support

import micktrace
import pytest

def test_my_function():
    # Capture logs during testing
    with micktrace.testing.capture_logs() as captured:
        my_function_that_logs()
        
        # Assert log content
        assert len(captured.records) == 2
        assert captured.records[0].message == "Function started"
        assert captured.records[1].level == micktrace.LogLevel.INFO

def test_with_context():
    # Test context propagation
    with micktrace.context(test_id="test_123"):
        logger = micktrace.get_logger("test")
        logger.info("Test message")
        
        # Context is available
        ctx = micktrace.get_context()
        assert ctx["test_id"] == "test_123"

Development Configuration

import micktrace

# Rich console output for development
micktrace.configure(
    level="DEBUG",
    format="rich",  # Beautiful console output
    handlers=[{
        "type": "rich_console",
        "show_time": True,
        "show_level": True,
        "show_path": True
    }]
)

📊 Performance Characteristics

Benchmarks

  • Disabled logging: < 50 nanoseconds overhead
  • Structured logging: ~2-5 microseconds per log
  • Context operations: ~100 nanoseconds per context access
  • Async context propagation: Zero additional overhead
  • Memory usage: Bounded, automatic cleanup

Scalability

  • High throughput: 100,000+ logs/second per thread
  • Low latency: Sub-millisecond 99th percentile
  • Memory efficient: Constant memory usage under load
  • Async optimized: No blocking operations in hot paths

Production Tested

  • Zero memory leaks - extensive testing with long-running applications
  • Thread safety - safe for multi-threaded applications
  • Async safety - proper context isolation in concurrent operations
  • Error resilience - continues working even when components fail

🤝 Contributing

MickTrace welcomes contributions! Whether you're fixing bugs, adding features, or improving documentation, your help is appreciated.

Quick Start for Contributors

# Clone the repository
git clone https://github.com/ajayagrawalgit/MickTrace.git
cd MickTrace

# Install development dependencies
pip install -e .[dev]

# Run tests
pytest tests/ -v

# Run performance tests
pytest tests/test_performance.py -v

Development Setup

# Install all optional dependencies for testing
pip install -e .[all]

# Run comprehensive tests
pytest tests/ --cov=micktrace

# Check code quality
black src/ tests/
mypy src/
ruff check src/ tests/

Test Suite

  • 200+ comprehensive tests covering all functionality
  • Performance benchmarks for critical paths
  • Integration tests for real-world scenarios
  • Async tests for context propagation
  • Error handling tests for resilience

See tests/README.md for detailed testing documentation.


📄 License

MIT License - see LICENSE file for details.

Copyright (c) 2025 Ajay Agrawal


🔗 Links


🏷️ Keywords

python loggingasync loggingstructured loggingjson loggingcloud loggingaws cloudwatchazure monitorgoogle cloud loggingdatadog loggingobservabilitytracingmonitoringperformance loggingproduction logginglibrary loggingcontext propagationcorrelation idmicroservices loggingkubernetes loggingdocker loggingelasticsearch logginglogfmtpython loggerasync pythonlogging librarylog managementapplication loggingsystem loggingenterprise logging


Built with ❤️ by Ajay Agrawal for the Python community

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