Re: Baby X is bor nagain

Malcolm McLean wrote:

On 18/06/2024 13:36, David Brown wrote:

#!/usr/bin/python3
import sys
>
if len(sys.argv) < 2 :
     print("Usage: sums.py <input-file>")
     sys.exit(1)
>
data = list(map(int, open(sys.argv[1], "r").read().split()))
n = len(data)
s = sum(data)
print("Count: %i, sum %i, average %i" % (n, s, s // n))
>
>
>

And here's a simple task for you. Our filesystem uses a new technology and is a bit dicey. Occasionally you will get a read error. Can you modify the python to print out that a read error has occurred?

No modification required ;)  A read error will raise an exception; unhandled exceptions are printed to stderr along with a stack trace, and the program terminates with a failure status.
If you don't want the stack trace, you can handle the exception to just print a message and exit, but this is comp.lang.c, not comp.lang.python.
--
Mark.