Exam PCAP topic 1 question 38 discussion

A. str is a string read in from the file named file.txt. The variable name str might be misleading, but in this context, it represents a file object, not a string. The open() function is used to open a file, not to read the content into a string. So, option A is not correct. B. A newline character translation will be performed during the reads. The mode "rt" stands for "read text." In text mode, newline characters are automatically translated to the appropriate line ending for the platform (e.g., \n on Unix-based systems, \r\n on Windows). So, option B is correct. C. If file.txt does not exist, it will be created. The mode "rt" opens the file in read text mode. If the file does not exist, it will raise a FileNotFoundError. So, option C is not correct. D. The opened file cannot be written with the use of the str variable. The file is opened in read text mode, which means you can read from it, but attempting to write to it would result in an error. So, option D is correct. Therefore, the correct deductions are B and D.

B and D.

It's BD because open return a file object not a string. https://github.com/sundowndev/phoneinfoga

'rt' means read 'wt' means write In this piece of code we are opening a file with the name file.txt which is readable. str = open ('file.txt', 'rt')

this is why A is incorrect : The variable str does not necessarily represent a string read from the file. It represents the file object returned by the open() function. To read the contents of the file into a string, you would need to use additional code like str_contents = str.read(). >>> B & D (correct)

For me A is more correct than B

A. may be correct if they change from 'string' to 'stream' there may be a typo. B. Is correct, only if the we are running over windows. With Unix-like OS there is no translation. And C is correct.

Answer should be B and D

A is not correct, as str is not a string, its a file object

Both statements are true. Statement B could be true or not regarding its content.

Correct answers are A&D

B. a newline character translation will be performed during the reads D. the opened file cannot be written with the use of the str variable

The correct answers are: B and D.

B. a newline character translation will be performed during the reads D. the opened file cannot be written with the use of the str variable

b. a newline character translation will be performed during the reads d. the opened file cannot be written with the use of the str variable

The correct answers are: B and D. "rt" means read file as text (which is the default anyway). More info here: https://docs.python.org/3/library/functions.html#open

I believe the given answer is incorrect. A - str is a file handle and does not contain the file contents.