python 2.5 - f=open('a_file.txt','w') gives [Errno 2]

[Diez B. Roggisch]

dirkheld wrote:

> On 3 dec, 14:54, "Diez B. Roggisch" <de... at nospam.web.de> wrote:
>> dirkheld wrote:
>> > Hi,
>>
>> > I upgraded my system from tiger to leopard. With leopard came a new
>> > version of python 2.5
>>
>> > Now I trying to run some python code that previously worked on tiger
>> > (which included an older version of python).
>>
>> > This is the error I'm receiving :
>>
>> > Traceback (most recent call last):
>> >   File "test.py", line 18, in print_total
>> >     f=open('a_file.txt','w')
>> > IOError: [Errno 2] No such file or directory: 'a_file.txt'
>>
>> > Is this a bug in python? This code worked on my old system
>>
>> The obvious question is: do you have 'a_file.txt' on your new system?
>> There are many happy python programmers on leopard, and this is one heck
>> of a basic functionality - I really doubt it's broken in such obvious way
>> (if any at all).
>>
>> Diez
> 
> I don't have a file called 'a_file.txt'
> I want to create that file and write some data to it. (http://
> docs.python.org/tut/node9.html#SECTION009200000000000000000)
> The strange thing is that it worked under tiger with an older vesion
> of python without any problem....

Oh sorry, my bad. I didn't see the mode flag. Do you by any chance happen to
not have the right to create files in the directory you are? What happens
if you use it in /tmp for example?

Still, I hold up to my reasoning: writing files is so essential in python,
and certainly not subject to great - if any - change (after all, it's just
calling the underlying OS functions) that I doubt it is broken.

Diez