how do you know if open failed?

[Neil Cerutti]

On 2006-09-28, SpreadTooThin <bjobrien62 at gmail.com> wrote:
> f = open('myfile.bin', 'rb')
>
> How do I know if there was an error opening my file?

Try it an see.

Seriously, it will raise an exception that you can catch.

try:
  f = open('myfile.bin', 'rb')
  # Do stuff with f
except IOError, inst:
  print 'Phooey.', inst.errno, inst.strerror

-- 
Neil Cerutti