File handling operations

• What is file handling?

  Interaction of programs with computer files
• What is the purpose of writing to a file?

  Save data into a file
• What are the main operations involved in file handling?

  • Open a file: Start using a file
  • Read from a file: Get data from a file
  • Write to a file: Save data into a file
  • Close a file: Finish using a file
• What does reading from a file allow you to do?

  Get data from a file
• What does it mean to open a file in file handling?

  Start using a file
• What does reading from a file involve?

  Getting information from a file
• What does closing a file signify in file handling?

  Finish using a file
• What is the first common file handling operation?

  Open
• What is the second common file handling operation?

  Read
• What does the 'Close' operation do in file handling?

  Ends file usage
• What is the fourth common file handling operation?

  Close
• What does the 'Write' operation do in file handling?

  Saves data to a file
• How do you open a file for reading in Python?

  `file = open("myfile.txt", "r")`
• How can file handling be compared to a physical object?

  Like a digital notebook for managing information
• What function is used to open a file in Python?

  open()
• What are the common file handling operations in Python?

  • Open: Begins using a file
  • Read: Retrieves data from a file
  • Write: Saves data to a file
  • Close: Ends file usage
• What is the purpose of the open mode `a`?

  It adds to the end of the file
• How would you open a file named "my_file.txt" for reading?

  file = open("my_file.txt", "r")
• What happens when you use the open mode `x`?

  It errors if the file exists
• What is the default open mode in Python?

  Read (`r`)
• What does the open mode `w` do?

  It overwrites the file if it exists
• What does the 'Read' operation do in file handling?

  Retrieves data from a file
• What is the first step to open a file in Python?

  Specify the file path
• What does the 'Open' operation do in file handling?

  Begins using a file
• What is the command to close a file in Python?

  `file.close()`
• What does the open() function return?

  A file object
• What mode is used with `open()` to read a file?

  "r" mode
• Why is it important to specify the file path?

  It determines where the file is located
• How do you write to a file in Python?

  `file.write("New data")`
• What is the command to read the entire file in Python?

  `file.read()`
• What is the benefit of using f-strings in Python?

  They provide clear formatting for strings
• What are the main file handling operations?

  1. Opening a file
  2. Reading from a file
  3. Writing to a file
  4. Closing a file
• How do you open a file for writing in Python?

  Use `open("filepath", "w")`
• How might a program use file handling in practice?

  To save a high score to a text file
• What should you remember to do when writing to a file?

  Handle errors if the file cannot be opened
• What should you check before closing the file in the `finally` block?

  If 'file' is in locals()
• What will happen if the file does not exist in the `try` block?

  The program will print "File not found"
• What is the purpose of file handling operations?

  To store and manage data in files
• What does the `readlines()` method do?

  Reads file line by line into a list
• What exception is caught if the file is not found?

  FileNotFoundError