Human: how to log error is. Assistant: 
Here is a Python code to log an error

import logging

def log_error(message):
    """
    Logs an error message.
    """
    print(("Error: " + message))

# Enter the message
message = "This is a message"

# Calling the function
print((log_error(message)))

#Example Output
# Error: This is a message
# None

#Remember to inspect code for bugs.