13.10. Best Practices in File Handling

Try these first

1. 1.

   What should you always do after using a file?

   Hint

   Think about what happens when you leave a faucet running.

2. 2.

   Which construct in Python helps manage file resources automatically?

   Hint

   Remember the keyword used to open files safely.

3. 3.

   What should you always do after writing to a file?

   • Leave the file open
   • Close the file
   • Overwrite existing data

   Hint

   Think about resource management.

4. 4.

   True or False: Buffering can enhance performance during file operations.

   • True
   • False

   Hint

   Consider how data is handled in blocks.

5. 5.

   Create a Python function that reads a file, handles potential errors gracefully, and ensures the file is always closed properly even if an error occurs.

   Hint

   Think about using 'with open()' syntax.

6. 6.

   Describe a scenario in a multi-threaded application where not using file locks could cause problems. Illustrate the potential data inconsistency that could arise.

   Hint

   Consider how concurrent modifications can conflict.