The following example uses make_parser / parse to read a trivial XML document by filename and then attempts to delete the file.  On Win32 I can't unlink the file because the parse does not seem to close the file handle.


import os
import tempfile
from xml.sax import make_parser, ContentHandler

(handle, path) = tempfile.mkstemp()
os.write(handle, b"<foo/>")
os.close(handle)

parser = make_parser()
parser.parse(path)

# This unlink fails on win32.  It succeeds if I comment out the call to parse.
os.unlink(path)


As I provide a filename rather than a file object, I would expect the parse call to both open and close it.  I can't see a way to do the clean-up myself.

This issue exists in Python 2.7.3 but I could not reproduce it in 3.2.3.


Windows cmd transcript:

c:\Users\mth>Python2.7.3\python.exe fileleak.py
Traceback (most recent call last):
  File "fileleak.py", line 14, in <module>
    os.unlink(path)
WindowsError: [Error 32] The process cannot access the file because it is being used by another process: 'c:\\d\\tmpvyqg2c'

c:\Users\mth>Python3.2.3\python.exe fileleak.py

c:\Users\mth>

@Matt I'm sorry that we haven't got back to you on this.

Is this fixed with d81f9e24ea89c0aaded1e0d3f8d8076bbd58c19a ?

I just tested the snippet in msg165779 under Windows with Python 2.7.16. I didn't get WindowsError after I called os.unlink(path) and verified that path is removed from the file system.

I think we can close this issue as 'out of date'.

nosy: + berker.peksag
messages: + msg341015

resolution: out of date
stage: resolved