how to log errors in log file one log file per day

logging errors to a file is an essential aspect of software development, as it helps you track issues and debug your application effectively. in this tutorial, we will create a simple logging mechanism in python that writes errors to a log file, with one log file generated per day.

step-by-step guide

1. set up the environment

make sure you have python installed on your system. you can check if python is installed by running:

2. create a logging function

we'll use python's built-in `logging` module to create a logger that generates a new log file each day. this module is powerful and flexible for logging purposes.

3. basic code structure

explanation of the code

1. **imports**: we import the necessary modules. `logging` is used for logging functionality, and `os` is used to handle the directory for logs. `timedrotatingfilehandler` is a specialized handler that allows for automatic log file rotation.

2. **setup logger**: the `setup_logger` function configures the logging mechanism:
- it checks if a `logs` directory exists and creates it if not.
- a logger named "errorlogger" is created and set to log `error` level messages and above.
- a `timedrotatingfilehandler` is configured to create a new log file at midnight each day. the old log files are kept for 7 days.
- a formatter is defined to specify how log messages will appear.

3. **log error function**: the `log_error` function is a simple wrapper that logs error messages.

4. **main block**: in the main block, we simulate an error (division by zero) and log it using the `log_error` function.

running the code

2. run the script:



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