Permissions issues with zipfile

[Cameron Simpson]

On 04Sep2017 00:30, loial <jldunn2000 at gmail.com> wrote:
>I am getting a permission issue with the following code
>            targetdirectory = '/data/upload'
>            self.ZIPFileName = targetDirectory + os.sep + "MY.ZIP"
>            zf = zipfile.ZipFile(self.ZIPFileName, mode='w')
> [Errno 13] Permission denied: '/data/upload/MY.ZIP'
>
>The target directory is an NFS mounted directory.
>
>I can manually create a file in that directory with no issues using the same user
>
>Any ideas?
>
>Python version is 2.7.10. Platform is Centos 7

Odd.

1: Does such a zip file already exist, perhaps with different ownership or no 
write permission?

2: Is the code running as you? Eg do you get this error running the code by 
hand from the same shell in which you can manually create a file there?

3: You're doing your python and manual check on the same machine (versus some 
testing on the server and some local or something)?

You're on Linux. Install strace and see what:

  strace python your-program.py

shows you. Just in case the zip file's being opened with a funny mode or 
something. It is always good to be totally sure of exactly what system call is 
failing.

Cheers,
Cameron Simpson <cs at cskk.id.au> (formerly cs at zip.com.au)