pysmartlogger 1.3.0

A cross-platform Python library that adds colorful logging capabilities to the standard logging module

🎨 SmartLogger

Beautiful, colorful logging for Python with zero configuration

Transform your boring Python logs into beautiful, colorful masterpieces!

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✨ Why SmartLogger?

Transform Your Logs Instantly!

Just one line of code transforms boring logs into beautiful, colorful masterpieces!

Before SmartLogger:

2024-01-06 10:30:45 - myapp - DEBUG - Processing user data...
2024-01-06 10:30:45 - myapp - INFO - User authenticated successfully
2024-01-06 10:30:45 - myapp - WARNING - API rate limit approaching
2024-01-06 10:30:45 - myapp - ERROR - Database connection failed
2024-01-06 10:30:45 - myapp - CRITICAL - System shutting down

After SmartLogger:

import smartlogger.auto  # One line = Colorful logs! 🎨

Your logs instantly become beautiful and easy to read with distinctive colors for each level!

🚀 Features

🎨 Beautiful Colors Each log level gets its distinctive color: 🔵 DEBUG - Blue (development info) 🟢 INFO - Green (general info) 🟡 WARNING - Yellow (potential issues) 🔴 ERROR - Red (actual errors) 🔥 CRITICAL - Bright Red + Bold (urgent!)	⚡ Zero Configuration import logging import smartlogger.auto # ← Right after logging! No setup, no configuration files, no complex initialization. Just remember the import order!
🖥️ Universal Compatibility ✅ Windows (CMD, PowerShell, Windows Terminal) ✅ macOS (Terminal, iTerm2) ✅ Linux (bash, zsh, fish) ✅ IDEs (VS Code, PyCharm, Jupyter) ✅ Python 3.8+	🛡️ Production Ready 🚀 Zero dependencies - No external packages required ⚡ Performance optimized - Minimal overhead 🔒 Safe - Won't break existing logging code 🧠 Smart detection - Auto-detects color support

📦 Installation

Choose your preferred method:

🏎️ Quick Install pip install pysmartlogger

🔧 From Source git clone https://github.com/DeepPythonist/smartlogger.git cd smartlogger pip install .

🚀 Quick Start

30-Second Setup

⚠️ IMPORTANT: Import Order Matters!
smartlogger.auto must be imported immediately after importing logging and before any logging configuration or usage.

# 1. Import logging first
import logging

# 2. Import SmartLogger IMMEDIATELY after logging (THIS IS CRITICAL!)
import smartlogger.auto

# 3. Now configure your logging (BasicConfig, handlers, etc.)
logging.basicConfig(level=logging.DEBUG)
logger = logging.getLogger(__name__)

# 4. Your logs are now colorful! 🎨
logger.debug("🔍 Debug: Investigating user behavior")
logger.info("✅ Info: User login successful")
logger.warning("⚠️ Warning: API rate limit at 80%")
logger.error("❌ Error: Payment processing failed")
logger.critical("🚨 Critical: Database connection lost!")

✅ Correct Import Order vs ❌ Wrong Import Order

✅ CORRECT import logging import smartlogger.auto # ← Right after logging! logging.basicConfig() logger = logging.getLogger(__name__) logger.info("✅ Colors work!")

❌ WRONG import logging logging.basicConfig() # ← Configuration before SmartLogger import smartlogger.auto # ← Too late! logger = logging.getLogger(__name__) logger.info("❌ No colors...")

Advanced Usage

🎛️ Custom Configuration

import logging
from smartlogger.core.formatter import ColorFormatter
from smartlogger.core.handler import ColorHandler

# Create a custom logger with SmartLogger
logger = logging.getLogger('my_custom_app')
logger.setLevel(logging.DEBUG)

# Use SmartLogger's handler and formatter
handler = ColorHandler()
formatter = ColorFormatter(
    '%(asctime)s | %(name)s | %(levelname)s | %(message)s'
)
handler.setFormatter(formatter)
logger.addHandler(handler)

# Your beautiful custom logs!
logger.info("🎨 Custom formatting with colors!")

🏢 Enterprise Integration

# ⚠️ Remember: Import order is critical!
import logging
import smartlogger.auto  # ← Must be imported before any logging configuration!

# Now configure your existing enterprise logging setup
LOGGING_CONFIG = {
    'version': 1,
    'disable_existing_loggers': False,
    'formatters': {
        'standard': {
            'format': '%(asctime)s [%(levelname)s] %(name)s: %(message)s'
        },
    },
    'handlers': {
        'default': {
            'level': 'INFO',
            'formatter': 'standard',
            'class': 'logging.StreamHandler',
        },
    },
    'loggers': {
        '': {
            'handlers': ['default'],
            'level': 'INFO',
            'propagate': False
        }
    }
}

logging.config.dictConfig(LOGGING_CONFIG)

# SmartLogger automatically enhances ALL your existing loggers!
logger = logging.getLogger('enterprise.module')
logger.info("🏢 Enterprise logging is now colorful!")

🎨 Color Palette

Log Level	Color	Visual	Use Case	Example
🔵 DEBUG	Blue	🔍	Development & debugging	"Processing user input: [e-mail]"
🟢 INFO	Green	ℹ️	General information	"User authenticated successfully"
🟡 WARNING	Yellow	⚠️	Potential issues	"API rate limit approaching (80%)"
🔴 ERROR	Red	❌	Actual errors	"Failed to connect to database"
🔥 CRITICAL	Bright Red + Bold	🚨	Urgent attention needed	"System memory critically low!"

🌟 Real-world Examples

🚀 Web Application

import logging
import smartlogger.auto  # ← Immediately after logging import!
from flask import Flask

app = Flask(__name__)
logger = logging.getLogger('webapp')

@app.route('/users/<user_id>')
def get_user(user_id):
    logger.info(f"🔍 Fetching user data for ID: {user_id}")
    
    try:
        user = database.get_user(user_id)
        logger.info(f"✅ User found: {user.email}")
        return user.to_json()
    except UserNotFound:
        logger.warning(f"⚠️ User {user_id} not found in database")
        return {"error": "User not found"}, 404
    except DatabaseError as e:
        logger.error(f"❌ Database error: {e}")
        return {"error": "Internal server error"}, 500

🤖 Machine Learning Pipeline

import logging
import smartlogger.auto  # ← Import right after logging!

logger = logging.getLogger('ml_pipeline')

def train_model(dataset_path):
    logger.info(f"🚀 Starting model training with dataset: {dataset_path}")
    
    try:
        data = load_dataset(dataset_path)
        logger.info(f"📊 Dataset loaded: {len(data)} samples")
        
        if len(data) < 1000:
            logger.warning(f"⚠️ Small dataset detected ({len(data)} samples)")
        
        model = train_neural_network(data)
        accuracy = evaluate_model(model)
        
        if accuracy > 0.95:
            logger.info(f"🎯 Excellent model performance: {accuracy:.2%}")
        elif accuracy > 0.80:
            logger.warning(f"📈 Good model performance: {accuracy:.2%}")
        else:
            logger.error(f"📉 Poor model performance: {accuracy:.2%}")
            
    except Exception as e:
        logger.critical(f"🚨 Model training failed: {e}")
        raise

📊 Data Processing

import logging
import smartlogger.auto  # ← Critical: Import immediately after logging!
import pandas as pd

logger = logging.getLogger('data_processor')

def process_customer_data(file_path):
    logger.info(f"📁 Processing customer data from: {file_path}")
    
    try:
        df = pd.read_csv(file_path)
        logger.debug(f"🔍 Raw data shape: {df.shape}")
        
        # Data validation
        missing_data = df.isnull().sum().sum()
        if missing_data > 0:
            logger.warning(f"⚠️ Found {missing_data} missing values")
        
        # Process data
        cleaned_df = clean_data(df)
        logger.info(f"✅ Data cleaning completed: {cleaned_df.shape}")
        
        # Save results
        cleaned_df.to_csv('processed_data.csv')
        logger.info("💾 Processed data saved successfully")
        
    except FileNotFoundError:
        logger.error(f"❌ Data file not found: {file_path}")
    except pd.errors.EmptyDataError:
        logger.critical(f"🚨 Data file is empty: {file_path}")

🖥️ Compatibility Matrix

Tested and Verified ✅

🐍 Python Versions ✅ Python 3.8 ✅ Python 3.9 ✅ Python 3.10 ✅ Python 3.11 ✅ Python 3.12

💻 Operating Systems ✅ Windows 10/11 ✅ macOS (Intel & Apple Silicon) ✅ Linux (Ubuntu, CentOS, Alpine) ✅ Docker containers ✅ Cloud environments

🔧 Development Tools ✅ VS Code (+ extensions) ✅ PyCharm (Pro & Community) ✅ Jupyter Notebooks ✅ Google Colab ✅ Terminal/CMD/PowerShell

🌐 Terminal Support

Terminal	Windows	macOS	Linux	Notes
Windows Terminal	✅	-	-	Full color support
PowerShell	✅	✅	✅	Core & 7+
Command Prompt	✅	-	-	Windows 10+
iTerm2	-	✅	-	Recommended for macOS
Terminal.app	-	✅	-	Built-in macOS terminal
bash/zsh/fish	✅	✅	✅	Universal support

🔬 How It Works

The Magic Behind SmartLogger ✨

import logging
import smartlogger.auto  # ← This triggers the magic! 🪄
# IMPORTANT: Must be imported right after logging and before any configuration!

🔧 Technical Implementation

SmartLogger uses intelligent monkey-patching to enhance Python's logging module:

# 1. 🕵️ Environment Detection
def detect_color_support():
    """Detects if the current environment supports ANSI colors"""
    # Checks terminal type, environment variables, IDE support
    return is_terminal_supports_color()

# 2. 🎨 Smart Color Application
def apply_colors(log_record):
    """Applies appropriate colors based on log level"""
    if not supports_colors:
        return original_format(log_record)
    
    color = get_color_for_level(log_record.levelname)
    return f"{color}{log_record.levelname}{RESET}"

# 3. 🔄 Safe Monkey-Patching
def patch_logging():
    """Safely patches logging without breaking existing code"""
    original_formatter = logging.Formatter
    logging.Formatter = EnhancedColorFormatter
    # Maintains 100% backward compatibility!

Key Features:

• 🔍 Smart Detection: Automatically detects color support
• 🛡️ Safe Patching: Won't break existing logging configurations
• ⚡ Performance: Minimal overhead (~0.1ms per log message)
• 🔄 Reversible: Can be disabled at runtime if needed

🎯 Zero Dependencies Philosophy

SmartLogger is built with zero external dependencies by design:

• 📦 Pure Python: Only uses standard library modules
• 🚀 Fast Installation: No compilation or external packages
• 🔒 Secure: No third-party code vulnerabilities
• 📱 Lightweight: Total package size < 50KB

# Compare installation times:
pip install some-logging-lib    # Downloads 20+ dependencies 😴
pip install pysmartlogger      # Just SmartLogger! ⚡

🤝 Contributing

We love contributions! SmartLogger is an open-source project and we welcome contributions of all kinds.

🚀 How to Contribute

Quick Start for Contributors

1. 🍴 Fork the repository

   git clone https://github.com/DeepPythonist/smartlogger.git
   cd smartlogger
   

2. 🌟 Create a feature branch

   git checkout -b feature/amazing-new-feature
   

3. 🧪 Run tests

   python -m pytest tests/ -v
   python demo_smartlogger.py
   

4. 📝 Make your changes and commit

   git add .
   git commit -m "✨ Add amazing new feature"
   

5. 🚀 Push and create PR

   git push origin feature/amazing-new-feature
   # Then create a Pull Request on GitHub!
   

🎯 Areas We Need Help With

• 🌍 Cross-platform testing (especially Windows variations)
• 🎨 New color schemes and themes
• 📚 Documentation improvements
• 🐛 Bug reports and fixes
• 💡 Feature suggestions

📋 Development Guidelines

• ✅ Code style: We use black for formatting
• 🧪 Testing: Add tests for new features
• 📝 Documentation: Update README for new features
• 🔍 Type hints: Use type annotations where possible

⚠️ Common Mistakes

🚫 Avoid These Import Order Mistakes!

❌ MISTAKE 1: Late Import import logging logging.basicConfig(level=logging.INFO) logger = logging.getLogger(__name__) # Too late! SmartLogger can't patch existing config import smartlogger.auto Result: No colors, plain text logging	❌ MISTAKE 2: Missing logging import # Missing: import logging import smartlogger.auto logging.basicConfig(level=logging.INFO) logger = logging.getLogger(__name__) Result: Import error or unexpected behavior
❌ MISTAKE 3: Config Before Import import logging # Configuration happens first logging.getLogger().setLevel(logging.DEBUG) logging.getLogger().addHandler(handler) import smartlogger.auto # Too late! Result: SmartLogger can't enhance existing loggers	✅ CORRECT WAY import logging import smartlogger.auto # Perfect timing! # All configuration after SmartLogger logging.basicConfig(level=logging.INFO) logger = logging.getLogger(__name__) logger.info("🎨 Beautiful colors!") Result: Beautiful, colorful logs!

❓ FAQ

Q: Why is import order important?

A: SmartLogger uses monkey-patching to enhance Python's logging module. It must be imported immediately after logging and before any logging configuration to work properly:

# ✅ CORRECT ORDER
import logging
import smartlogger.auto  # ← Must be here!
logging.basicConfig()   # ← Configuration after SmartLogger

# ❌ WRONG ORDER  
import logging
logging.basicConfig()   # ← Configuration before SmartLogger
import smartlogger.auto  # ← Too late! Colors won't work

Q: Does SmartLogger affect performance?

A: Minimal impact! SmartLogger adds ~0.1ms overhead per log message. Color detection is cached, so there's virtually no performance penalty after initialization.

Q: Can I use SmartLogger in production?

A: Absolutely! SmartLogger is designed for production use:

• 🛡️ Safe: Won't break existing logging
• 🚀 Zero dependencies: No external vulnerabilities
• ⚡ Performance optimized: Minimal overhead
• 🔄 Reversible: Can be disabled if needed

Q: What if my terminal doesn't support colors?

A: SmartLogger automatically detects color support and gracefully falls back to plain text in non-color environments. No configuration needed!

Q: Can I customize the colors?

A: Yes! You can customize colors using the advanced configuration:

from smartlogger.config.colors import Colors

# Customize colors
Colors.INFO = Colors.CYAN  # Make INFO messages cyan
Colors.DEBUG = Colors.MAGENTA  # Make DEBUG messages magenta

Q: Does it work with existing logging configurations?

A: Yes! SmartLogger is designed to work seamlessly with existing logging setups. Just add import smartlogger.auto and your existing loggers become colorful.

📄 License

MIT License - see LICENSE file for details.

Feel free to use SmartLogger in your projects, both personal and commercial!

👨‍💻 Author

Mohammad Rasol Esfandiari

🐍 Python Developer & Open Source Enthusiast

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🌟 If SmartLogger made your logging beautiful, please give it a star!

Made with ❤️ for the Python community

Transform your logs from boring to beautiful in seconds! 🎨