Let's study Python

Learn how to retrieve the textual representation of logging levels in Python using logging.getLevelName.

# Python logging.getLevelName Usage

In Python, the `logging` module is used for event logging. It provides a flexible framework for emitting log messages from Python programs. The `logging.getLevelName` method is used to retrieve the textual representation of a logging level.

## Syntax

The syntax for `logging.getLevelName` is as follows:

“`python
logging.getLevelName(level)
“`

Where `level` is an integer representing a logging level.

## Parameters

– `level`: An integer representing a logging level. The valid logging levels are defined in the `logging` module and include `DEBUG`, `INFO`, `WARNING`, `ERROR`, and `CRITICAL`.

## Return Value

The `logging.getLevelName` method returns the textual representation of the logging level associated with the given integer. If the integer does not correspond to a valid logging level, the method returns `None`.

## Example

“`python
import logging

# Get the textual representation of the logging level
level_name = logging.getLevelName(logging.INFO)
print(level_name) # Output: INFO

level_name = logging.getLevelName(50) # Custom level
print(level_name) # Output: Level 50
“`

In the example above, we first import the `logging` module. We then use the `logging.getLevelName` method to retrieve the textual representation of the `INFO` logging level, which is printed to the console. We also demonstrate how to retrieve the textual representation of a custom logging level (level 50 in this case).

Overall, the `logging.getLevelName` method is useful for obtaining the human-readable name of a logging level in Python logging applications. It can be helpful when you need to display or manipulate logging levels in a more user-friendly format.