[Errno 18] Invalid cross-device link using os.rename

[Scott Whitney]

oldName=/backup/backups/data/WWW_httpd.conf_backups/20050204.httpd.conf

newName=/backup_old/data/WWW_httpd.conf_backups/20050204.httpd.conf

os.rename(oldName,newName) gives:

OSError: [Errno 18] Invalid cross-device link

mv from the shell works fine.

This is Python 2.2.3 from RedHat 9.0.

Any suggestions (other than os.system('mv %s %s')?)

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