Python, how to setup hooks for tracing I/O Events

My app downloads fil开发者_高级运维es, creates files as final/intermediate data. I would like to setup a hook (outside the app), to alert/log whenever my app does any I/O events - like writing a file, deleting a file, downloading a file from the file server. I use the urllib to retrieve fits files from the data servers.

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If you know where the file will be downloaded to, one solution could be to use inotify. In particular, pyinotify seems interesting. I don't know if CentOS has a recent enough version of the Linux kernel for this to work though.

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If you want a list of your process file operations, you can use FileMon or ProcMon from SysInternals.

Edit: for Linux, you can use strace.