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From: Mark Bourne <nntp.mbourne@spamgourmet.com>
Newsgroups: comp.lang.c
Subject: Re: Baby X is bor nagain
Date: Tue, 18 Jun 2024 21:09:25 +0100
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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.