在python中中断os.rename

Question

I made a script in python that renames all files and folders(does not recurse ) in "." directory: the directory in which file is kept. It happened that I ran the script in a directory which contained no files and only one directory let's say imp with path .\\imp . While program was renaming it, the electricity went off and the job was interrupted (sorry did't had UPS).

Now as the name suggests, assume imp contains important data. The renaming process also took quite good time ( compared to others ) before electricity went off even when all it was renaming was one folder. After this endeavour is some data corrupted, lost or anything?

Just make this more useful: what happens os.rename is forced to stop when it is doing its job? How is the effect different for files and folders?

Details

Python Version - 2.7.10

Operating System - Windows 10 Pro

Answer 1

You are using Windows, which means you are (probably) on NTFS. NTFS is a modern, journaling file system. It should not corrupt or lose any data, though it's possible that only some of the changes that constitute a rename have been applied (for instance, the filename might change without updating the modification time, or vice-versa ). It is also possible that none of those changes have been applied.

Note the word "should" is not the same as "will." NTFS should not lose data in this fashion, and if it does, it's a bug. But because all software has bugs, it is important to keep backups of files you care about.