On 21/03/2016 01:35, Chris Angelico wrote:
On Mon, Mar 21, 2016 at 12:28 PM, Mark Lawrence <breamore...@yahoo.co.uk> wrote:
I got to line 22, saw the bare except, and promptly gave up.
Oh, keep going, Mark. It gets better.
def readstrfile(file):
try:
data=open(file,"r").read()
except:
return 0
return data
def start():
psource=readstrfile(infile)
if psource==0:
print ("Can't open file",infile)
exit(0)
So, if any exception happens during the reading of the file, it gets
squashed, and 0 is returned - which results in a generic message being
printed, and the program terminating, with return value 0. Awesome!
ChrisA
The essential question is "which is faster?". Who cares about trivial
little details like the user being given false data, as (say) they can
open the file but can't read it. Or inadvertantly writing an infinite
loop and not being able to CTRL-C out of it, having to revert to your OS
to kill the rogue that's killing your CPU.
25 years of trying to teach people how to write Pythonic code and this
is how far we've got. Heck, I think I'll see my GP later today for some
more, more powerful, tranquilisers.
--
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.
Mark Lawrence
--
https://mail.python.org/mailman/listinfo/python-list
