7 File Input and Output Online Quiz Questions

True or false: A file opened inside a Python with statement is closed automatically when execution leaves the block, even if an exception occurs inside it.

Which mode should a Python program use to add a new line to the end of an existing log file while preserving its current contents?

Which encoding should you explicitly specify when opening an ordinary text file to make text processing predictable across platforms?

Which expression uses pathlib to construct a path for input.txt inside the data directory in a platform-aware way?

Select all correct statements about reading a text file in Python.

A program executes count = file.write("Hi"). What value is stored in count?

Which statement correctly applies the pathlib text-file methods described in the material?

Write a short Python solution that reads integer scores from scores.txt, processes the file line by line without reading the entire file at once, removes each line's surrounding whitespace before conversion, and safely closes the file. Explain why the structure is appropriate.

True or false: Python's text mode line-ending translation is appropriate for ordinary text files but should not be used for binary formats such as images.

A program must create first-run.txt only if it does not already exist; overwriting an existing file should raise an error. Which mode should it use?

A program should read message.txt only when the path exists and refers to a file rather than a directory. Which two pathlib methods directly test those conditions?

True or false: Omitting the encoding argument when opening a text file guarantees that the same character decoding behavior will occur on every computer.

What directory does Python use as the starting point when interpreting a relative path?

What exception may Python raise when text is read using an encoding that cannot decode the file's bytes?

A program must inspect an existing configuration file and then update selected contents in that same file without automatically erasing the rest. Which mode should be used with open()?

Consider this code: quantity = 12; with open("summary.txt", "w", encoding="utf-8") as file: file.write("Quantity: " + quantity). What change correctly allows the quantity to be included in the written text?

A program reads settings with Path("settings.txt").read_text(encoding="utf-8"). If settings.txt does not exist, which specific exception should the program catch to provide default settings?

A program must write the string "café" to a binary file opened with mode "wb". Which approach is appropriate?