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
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).
using cprofile with input files