How to Get Live Logs Using Loguru and Pytest

What will you learn?

In this tutorial, you will master the implementation of live logging in your pytest tests using the powerful Loguru library. By integrating real-time logs into your testing environment, you can gain valuable insights into test progress and quickly identify any potential issues.

Introduction to the Problem and Solution

Logging plays a crucial role in understanding the intricacies of test execution. By incorporating live logs into pytest tests, we can monitor the testing process in real-time, making it easier to detect and troubleshoot issues promptly. Loguru is a feature-rich logging library in Python that simplifies the creation of detailed logs with advanced functionalities like coloring, timestamps, log rotation, and more. Leveraging Loguru within pytest enables us to enhance our testing workflow by providing comprehensive insights during test runs.


from loguru import logger

def test_example():
    logger.debug("This is a debug message")"This is an info message")
    logger.warning("This is a warning message")
    assert 1 == 1

# For more advanced usage or configurations:
# Visit for detailed documentation on Loguru:

# Copyright PHD


  • Import the logger from Loguru to enable logging capabilities.
  • Demonstrate different log levels (debug, info, warning) within a sample test_example() function.
  • Explore advanced configurations and settings on for further customization.
    How do I install Loguru?

    To install Logoru, simply use pip: pip install loguru.

    Can I customize the log format with Loguro?

    Yes, you can easily customize the log format using Loguro’s configuration options.

    Does Loguro support logging to multiple destinations?

    Absolutely! You can configure Loguro to write logs not only to files but also streams like stdout or stderr.

    Is it possible to disable logging selectively?

    Yes, you have full control over which logs are displayed based on their level or other filters.

    How does live logging differ from regular logging in pytest tests?

    Live logging provides real-time updates during test execution rather than waiting until all tests finish before displaying logs.


    By incorporating live logs using Logaru, you elevate visibility during pytest executions. The utilization of real-time insights facilitates efficient debugging processes and enhances overall test clarity. For additional details and customization options, visit PythonHelpDesk.

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