In Python, checking whether a file exists is a fundamental task for various operations such as file handling, data processing, and error handling. It allows programs to determine the presence of a file before attempting to read or write to it, preventing potential errors and ensuring efficient code execution.
There are several methods to check if a file exists in Python, each with its advantages and use cases. One common method is using the `os.path.exists()` function from the `os` module. This function takes a file path as an argument and returns a boolean value indicating whether the file exists at that location.