How can I log performance metrics in Python?

How can I log performance metrics in Python?

You can use the built-in logging module in Python to log performance metrics. Would you like a code example?

Yes, please provide a code example.

Here's a simple example:

import logging
import time

# Configure logging
logging.basicConfig(level=logging.INFO)

# Function to log performance
def log_performance(func):
    def wrapper(*args, **kwargs):
        start_time = time.time()
        result = func(*args, **kwargs)
        end_time = time.time()
        logging.info(f"Function {func.__name__} took {end_time - start_time:.4f} seconds to execute.")
        return result
    return wrapper

@log_performance
def example_function():
    time.sleep(2)  # Simulate a delay

example_function()

What if I want to log to a file instead of the console?

You can specify a filename in the basicConfig method. For example:

logging.basicConfig(filename='performance.log', level=logging.INFO)