I think you are right about that, and line 28 of file_storage.py should say "file = File(filename, readonly=True)". Thanks! On May 14, 2007, at 3:22 PM, Mike Orr wrote: > There's a bug in Durus 3.7: I get a "permission denied" error which > does not occur under Durus 3.6. Examination of file.py shows the > 'readonly' flag has gotten lost and it's trying to open the file in > read/write mode. I think the culprit is file_storage.py line 28.