The Cost of Dynamism (was Re: Pyhon 2.x or 3.x, which is faster?)

[BartC]

On 21/03/2016 01:35, Chris Angelico wrote:
> On Mon, Mar 21, 2016 at 12:28 PM, Mark Lawrence <breamoreboy at 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!

I don't have a clue about exceptions, but why wouldn't read errors be 
picked up by the same except: block?

But I've anyway sprinkled one or two more try/excepts in there and put 
some actual exception codes in. However, this readstrfile() is just 
there to load the file into memory and avoid having a 200,000-line 
string in the program.

-- 
Bartc