In appveyor, I'm having trouble deleting .dbf files that were written by a shapefile.Writer and subsequently read again by a shapefile.Reader (to check contents were written correctly).
I'm getting the following error: WindowsError: [Error 32] The process cannot access the file because it is being used by another process: u'c:\\users\\appveyor\\appdata\\local\\temp\\1\\obspy-ogjwjz\\inventory.dbf' on a os.remove(filename) call: See https://ci.appveyor.com/project/obspy/obspy/build/1.0.5339-master/job/ox2tu1p3xry0kkx4#L573

I suspect the Reader is likely to blame, but even a manual reader_instance.close() call did not make this error go away.

Have you seen something like the above before?

See obspy/obspy#1933.