0

I am supposed to run following command for an assignment to analyze the functions in rsa.py

python -m cProfile -s time rsa.py < tests/1verdict32.in

I am assuming this file uses tests/1verdict32.in as in the input file to rsa.py. but I am not familiar with how cProfile works with a file as an input can someone explain to me how this is supposed to work? especially what is the relevance of "<" character in the above line?

ps: the directory structure is

WD/ -rsa.py -hello.py -tests/ -1verdict_32.in

also when I run above command, it gives "system cannot find the file specified" error but the profiler works when I use it on file hello.py i.e. for the command: python -m cProfile -s time hello.py

swaraj pawar
  • 3
  • 3

1 Answers1

1

You have a typo.

Your file is 1verdict_32.in, and you're attempting to pass in 1verdict32.in, without the underscore. That's why your shell complains.

Beyond that, < ... is a simple shell redirection operator; it means that the shell (bash, zsh, fish, cmd, ...) opens the file ... and writes it into the process's standard input (in Python, that's sys.stdin).

AKX
  • 152,115
  • 15
  • 115
  • 172